West Africa Cruising Pilot
Cape Verde · Senegal · Gambia · Sierra Leone
Introduction
This pilot book covers the coastal passage from Mindelo, Cape Verde, southward to Freetown, Sierra Leone, and back — a circuit of approximately 950 nautical miles taking four to eight weeks depending on stops. It is written specifically for a performance catamaran with an 8-metre beam and 2.1-metre draft, three passports (EU, UK, and a third), and a crew comfortable with offshore passages in trade-wind conditions.
Vessel Profile & Constraints
The 8-metre beam excludes all marinas and anchorages where beam is restricted. The 2.1 m draft restricts access to shallowing river estuaries; always verify LAT depths on the latest BA/SHOM chart before entering. The air-draft of the rig must be checked against any fixed bridges on the Gambia and Casamance rivers.
- Beam (8 m): Dakar’s marina pontoons, most Casamance creek stops, and many Gambia River berths will require anchoring out or side-tying to a commercial quay.
- Draft (2.1 m): Adequate for Dakar roads, Banjul roads, and the Freetown anchorage. Shallows rapidly inside the Casamance delta; enter on a rising tide only.
- Passports: EU passport used for Senegal and Sierra Leone (visa on arrival or eVisa); UK passport used as backup. Verify the current third-passport visa status for Gambia before departure — requirements change.
Passage Overview
The dominant logic of this passage is the Northeast Trade Wind system. Sail south and east with the trades on the beam or quarter from November through March; return north-northwest against a weakening gradient in late February through April. The Canary Current provides a modest southward set on the outward leg (~0.2–0.5 kn) and a modest adverse set on the return. The total passage, including coastal cruising time in Senegal, Gambia, and Sierra Leone, fits comfortably within a 60-day cruising window between late November and late January.
Weather, Currents, Piracy & Seasonal Safety
This chapter is the most critical in the pilot. The West African coast from Cape Verde to Sierra Leone presents a specific and somewhat counter-intuitive combination of risks: benign piracy statistics relative to global hotspots, but genuinely serious hazards from the Harmattan, the coastal upwelling system, and above all from unlighted fishing pirogues operating far offshore at night.
2.1 Trade Winds
The Northeast Trades are the defining feature of this passage. At Cape Verde the NE wind blows approximately 80% of the time between November and March, typically Force 3–4 (11–16 kn) in settled periods and Force 5–7 (17–33 kn) during reinforcements. The strongest months at Cape Verde are January and February, when the trade inversion is lowest and the gradient is sharpest.
South of Dakar (14°N), the trade stream weakens and backs toward NNE–N over the Senegalo-Mauritanian shelf. Below the Gambia River (13°N) the air-mass transition is more complex: the Intertropical Convergence Zone (ITCZ) has retreated to roughly 5°N in January, allowing trade-wind conditions to extend nearly to Freetown. However, coastal sea breezes, land effects from the Fouta Djallon Highlands, and the Harmattan complicate the simple trade-wind model below 12°N.
ECMWF and GFS models perform well on the deep-ocean trade-wind component but consistently underpredict Harmattan surge strength and coastal convergence lines. Always cross-check with Météo France Dakar forecasts and Passage Weather before committing to offshore legs.
2.2 The Harmattan
The Harmattan is a dry, dust-laden continental wind that blows from the Sahara southwest across the Sahel. It is active from November through March — exactly the window this passage uses — and is the most underestimated weather system on this coast for cruisers arriving from the North Atlantic trade-wind zone.
Visibility: Saharan dust reduces visibility to 1–3 NM, occasionally less. Radar becomes essential for the Dakar–Banjul coastal leg. AIS targets may appear without visual confirmation.
Wind surges: Harmattan pulses can raise apparent wind speed by 10–15 kn above forecast values within minutes and last 6–24 hours. Reef conservatively when dust haze is visible.
Equipment fouling: Fine ferrous dust deposits on winches, blocks, solar panels, and watermaker pre-filters. Plan for daily rinse-downs and pre-filter replacement every 48–72 hours at peak Harmattan.
Harmattan intensity varies considerably between years. Strong Harmattan years (2020, 2021) produced near-zero visibility for 48-hour periods along the Senegal coast. The dust is also corrosive to electronics over a multi-week exposure. Cover instruments when not in use.
2.3 Currents & Coastal Upwelling
The Canary Current flows southward along the West African coast as part of the North Atlantic subtropical gyre. Set is generally southward at 0.2–0.5 kn on the outbound (southward) passage and adverse (northward against you) on the return. This is gentle and rarely passage-critical except when beating to windward in light airs on the return leg, when current set against you may double your VMG penalty.
Senegal–Mauritania Upwelling System (SMUS)
Between roughly 15°N and 12°N, the strong NE trades drive Ekman transport that draws cold sub-surface water to the surface along the coast. The upwelling season peaks from January through May — precisely the optimal cruising window. Key navigation implications:
- Cold-water fog patches: Sea surface temperatures can be 4–8°C cooler than the surrounding ocean. Warm, humid trade-wind air passing over cold upwelled water produces localised advection fog, especially at dawn. Visibility can drop below 0.5 NM without warning.
- Wind-shift fronts at upwelling edges: The temperature discontinuity creates abrupt wind-speed and direction shifts. Approach the Dakar peninsula and the Casamance mouth with caution during upwelling events.
- Tidal streams at river mouths: The Gambia River mouth and Casamance estuary generate tidal streams of up to 4.5 kn at springs. A cat-bridle anchor system is strongly recommended; a single anchor set with moderate scope will drag in peak ebb flow.
Tidal streams up to 4.5 kn at springs in the Gambia and Casamance mouths. Set a cat-bridle and check holding every watch. Fetch in these anchorages can build rapidly when wind opposes tide.
2.4 Squalls, Swell & Sea State
North Atlantic swell wraps around the Cape Verde islands and produces a confused cross-swell south of São Vicente, particularly in the 150 NM after departure. The dominant swell direction is NNW to NW at 2–3 m in settled conditions, rising to 3.5–5 m during trade reinforcements. Period is typically 10–14 s, long enough to be comfortable on a catamaran of this size.
Convective squall lines are rare in the dry season (November–March) but not unknown, particularly when the ITCZ makes a northward excursion. Monitor CAPE (Convective Available Potential Energy) values on GRIB files; a CAPE index above 400 J/kg warrants increased watch frequency. Any convective development south of 10°N in the Sierra Leone approach should be treated with particular respect — the topography of the Fouta Djallon funnels and intensifies squall lines moving onshore.
2.5 Fishing Pirogue Hazard ⚠ Priority Risk
Low-freeboard, unlighted wooden pirogues operate 10–50 NM offshore between Dakar and Banjul, on passage overnight. Cruisers report being surrounded by fleets with no navigation lights for entire nights. For an 8-metre beam catamaran, a bow strike on a pirogue hull would be catastrophic for both vessels.
Senegalese artisanal fishing pirogues (traditional dugout canoes 8–20 m LOA) operate far beyond the expected coastal range, driven by fuel economics and diminishing nearshore fish stocks. Many carry no AIS, no radar reflector, and no navigation lights beyond a handheld torch that may be pointed away from you. They travel fast under outboard power — 8–12 kn — making them difficult to distinguish from background radar clutter until very close.
Recommended mitigation
- Two-person watch at all times during the Dakar–Banjul coastal transit, 24 hours.
- Radar on 3 NM range with MARPA tracking of all radar contacts; cross-check against visual sector every 10 minutes.
- Spread full white steaming light and both sidelights; confirm they are visible from a low angle of approach.
- Reduce speed to 6–7 kn maximum on overnight coastal legs to allow evasive action time.
- Maintain continuous VHF watch on Channel 16 — some pirogues carry radio.
- If surrounded by pirogues, reduce to minimum steerage speed, turn on all available lights, and use horn (5 short blasts = danger). Never attempt to navigate through a fleet at speed.
2.6 Piracy & Maritime Security
Senegal, Gambia, and Sierra Leone do not fall within the Gulf of Guinea piracy hotspot. The IMB recorded 21 incidents in the Gulf of Guinea in 2025, all clustered around the Niger Delta, Gulf of Benin, and Bight of Biafra — hundreds of miles southeast of this passage. The threat level in the waters covered by this pilot is categorically different from Nigeria, Benin, or Togo.
| Risk Category | Threat Level | Key Measures |
|---|---|---|
| Violent piracy / armed robbery | Low | No recent incidents in Senegal/Gambia/SL waters |
| Petty theft (dinghy/gear) | Moderate | Lock dinghy outboard, use chain, never leave dinghy unattended at dock overnight |
| Opportunistic boarding | Moderate | Keep cockpit locked at night; lock-pin companionway hatch in busy anchorages |
| Official boarding / document checks | Expected | Carry organised Q-flag folder with all docs; be courteous; expect lengthy process at Banjul |
| Dark-running commercial vessels | High offshore | Radar watch mandatory; IUU fishing trawlers common on this coast and frequently dark |
| Fishing pirogue collision | High — night passages | See Section 2.5 |
BMP (Best Management Practices) summary
- Maintain a 24-hour watch log; note all vessel contacts by time, bearing, range, and action taken.
- Register passage intentions with MDAT-GoG (Maritime Domain Awareness for Trade — Gulf of Guinea) even though Senegal is outside the advisory zone — the register provides SAR coverage.
- Carry copies of all ship’s papers, crew passports, and zarpe/despacho in a waterproof bag accessible in 60 seconds.
- File a float plan with a shore contact; check in every 24 hours on SSB or satellite messenger.
2.7 Month-by-Month Seasonal Safety Calendar
| Month | Conditions | Verdict |
|---|---|---|
| Oct | Late ITCZ; squall risk; humid; W. Africa hurricane tail | Avoid |
| Nov | Trades establishing; NE 3–4; Harmattan building; ITCZ retreating. Best month to depart southbound. | Excellent southbound |
| Dec | Consistent NE 4–5; Harmattan active; good offshore visibility except dust events; prime passage window. | Excellent |
| Jan | Strongest trades (F5–7 reinforcements possible); upwelling active; fog risk near coast; pirogue traffic peaks. | Good (manage wind) |
| Feb | Trades moderating; Harmattan can be intense. Ideal for northbound return departure. | Good (return month) |
| Mar | Trades weakening; ITCZ beginning northward migration; northbound possible but expect more motoring. | Acceptable (return) |
| Apr | Trade gradient collapsing; variable winds; squall risk increasing south of 12°N. | Marginal |
| May–Sep | Full wet season / hurricane season; squall lines; SW monsoon; dangerous. | Avoid entirely |
Senegal
Senegal is the primary cruising ground on this passage, offering the largest range of anchorages, the best provisioning (Dakar), and access to the Casamance region in the south. Entry formalities are relatively straightforward for EU/UK passport holders.
Entry Formalities
EU & UK Passports — Visa Requirements
EU citizens: Visa-free entry for stays up to 90 days. No advance eVisa required. Ensure passport validity at least 6 months beyond departure date from Senegal.
UK citizens: Visa-free for up to 90 days (post-Brexit arrangement maintained). Confirm current status at the Senegalese Embassy website before departure as arrangements are subject to change.
Ship’s papers required: Certificate of Registry, Insurance, Zarpe from last port, crew list (4 copies), passports. Health declaration form if arriving from a declared outbreak country.
Check-in Procedure — Dakar
Check in at Port de Dakar commercial port (contact Dakar Port Authority on VHF Ch 16/12) or via the Capitainerie at Hann Marina. Many cruisers use an agent (see Appendix B) to navigate the multi-office process involving Customs (Douanes), Immigration, Port Authority (Capitainerie), and Health (Santé Maritime). Agent cost typically €50–100; time saving of 3–6 hours makes it worthwhile.
Zarpe (cruising permit) / Déspacho: Senegal issues a zarpe valid for the period stated; present this at each subsequent anchorage check-in along the Casamance coast.
Casamance Region Access
The Casamance separatist conflict (MFDC) has been dormant since 2014 and the region is generally considered safe for yachts anchoring in recognised stops. However, the FCDO (UK) and French MEAE have periodically advised against travel to areas near the Gambian border and the Casamance interior. Check current advice immediately before arrival. Cruiser forums (Noonsite, ARC Facebook group) carry the most current first-hand reports.
Depth caution: The Casamance river bar shoals to 1.0–1.5 m LAT in some years. At 2.1 m draft, entry may only be possible at high water springs. Obtain the most recent sounding reports from cruisers who have transited within the previous two weeks.
Key Anchorages
- Dakar Roads / Rade de Dakar: Well-protected in NE winds; exposed to SW swell. Good holding in 8–12 m sand. The cruise terminal and commercial port area are busy with ship traffic; anchor in the designated yacht area N of the main channel. Avoid the anchorage S of Gorée Island in strong Harmattan.
- Île de Gorée: Historic island, excellent day stop. Limited overnight anchorage space; expect ferry traffic. Anchor N of the ferry dock in 5–8 m.
- Saloum Delta: Spectacular labyrinth of mangrove channels. Requires careful pilotage; many channels dry at LW. Excellent birding and fishing. Plan 3–5 days minimum. Guides available from Foundiougne.
- Ziguinchor (Casamance): Inland port 60 NM up the Casamance River. Access requires crossing the bar (depth variable — see above). Well-organised cruiser stop with a small marina/dock.
Provisioning
Dakar is the only significant provisioning port on this passage. Stock up fully before departing south. Available: diesel (jerricans from Port de Pêche; no fuel berth for yachts), bottled water, propane (French-compatible), fresh produce at Marché Sandaga, and basic chandlery at the fishing port. No anti-fouling or specialist marine supplies; bring all replacement parts from Mindelo or Europe.
The Gambia
The Gambia is a narrow country flanking both banks of the Gambia River. Banjul (on the south bank of the river mouth) is the arrival port for yachts. The formalities process here is notably more complex than Senegal and typically requires an agent. Budget a full day for check-in.
Gambia visa requirements vary significantly by passport. EU and UK passport holders receive visa-free entry for up to 90 days, but requirements for other nationalities change without notice. Check the Gambian High Commission website and recent cruiser reports (Noonsite) within 30 days of arrival.
Entry & Check-in
Check in at Banjul Harbour (VHF Ch 16). Required offices: Customs, Immigration, Port Health, and the Gambia Ports Authority. An agent (see Appendix B) is strongly recommended; the process without one can take 2–3 days. Expect to pay small facilitation fees at each office; obtain receipts. The anchor at Banjul roads holds well in sand but the anchorage is exposed to SW swell and the ferry traffic creates significant wash.
Cruising the Gambia River
The Gambia River is navigable for shallow-draft vessels up to ~300 NM inland. At 2.1 m draft, the first 60–80 NM is accessible, taking you past Banjul to Georgetown (Janjanbureh). Note the tidal stream constraint described in Chapter 2 (Section 2.3). Wildlife (hippos, crocodiles, birds) is exceptional in the upper reaches; plan an early-morning departure from each anchorage to explore in the dinghy.
Practical Notes
- Currency: Gambian Dalasi (GMD). Exchange in Banjul; ATMs available. No card payment on the river.
- Diesel: Available at Banjul docks by jerricans; limited up-river. Carry full reserves before leaving Banjul.
- Mobile data: Africell SIM cards provide reasonable 4G in Banjul; coverage diminishes rapidly up-river.
Sierra Leone
Sierra Leone is the southern terminus of this passage and one of the most dramatic natural harbours in West Africa. Freetown’s estuary — the Sierra Leone River — offers superb all-weather anchorage, clear water, and a genuinely warm welcome to cruising yachts. The passage south from Banjul is the longest offshore leg on the circuit (approximately 250 NM) and passes through the transition zone between trade-wind Africa and the Guinea Highlands weather regime.
Below 12°N, sea state and wind character change noticeably. Expect more variable winds, possible light airs between 10°N and 8°N, and an increase in convective activity approaching Freetown. The Guinea Current sets eastward along the coast and can produce a significant cross-set between 10°N and 8°N; allow 15–20 NM of easting in your waypoint plan to compensate.
Entry Formalities
Sierra Leone requires a visa for most nationalities. EU and UK citizens can obtain a visa on arrival at Freetown’s Lungi Airport — but note this provision has not been historically extended to yacht arrivals. Obtain an eVisa before departure via the Sierra Leone Immigration Department website. Processing time is 3–5 working days; apply at least two weeks before your planned arrival. Cost approximately USD 80 (single entry, 30 days, extendable).
Check in at Freetown Port (call Freetown VTS on VHF Ch 16). The recommended anchorage for yachts is Aberdeen Creek or the Sierra Leone Yacht Club (SLYC) anchorage off Freetown. SLYC membership (temporary) available on arrival; small fee; provides security, water, showers, and informal agent assistance.
Aberdeen Creek & Freetown
Aberdeen Creek provides excellent shelter in all trade-wind conditions, good holding in mud at 3–6 m, and is within dinghy range of Aberdeen village for provisioning and the SLYC facility. The estuary is wide enough for the 8 m beam with no restrictions. Beware the ferry and commercial traffic in the main Freetown channel; the yacht anchorage is well to the west of the main lane.
Freetown offers the best provisioning south of Dakar: fresh produce at the central market, diesel at the commercial quay (arrange via agent), and LPG refills for French-threaded bottles. Allow at least five days here — the Banana Islands 20 NM offshore are a superb diving and snorkelling side-trip accessible from a catamaran.
Day-by-Day Route Plan
Mindelo → Freetown → Mindelo · ~950 NM round trip · 42–58 days · 8 stages
Marine Services & Contact Directory
All contacts should be verified immediately before departure. Phone numbers and VHF channels on this coast change frequently. Use cruiser forums (Noonsite, Facebook groups) for the most current information.
Mindelo — Cape Verde
Dakar — Senegal
Banjul — Gambia
Freetown — Sierra Leone
Cruiser Resources
Route Planning & Pilot References
- Atlantic Islands (RCC Pilotage Foundation / Anne Hammick)Standard Atlantic passage reference. Cape Verde section covers harbours, currents, and seasonal strategy in detail.
- West Africa Pilot (Imray / RCC)Covers Senegal to Cameroon. Essential for anchorage coordinates, depths, and approach notes. Check edition date — update with Noonsite current cruiser reports.
- Admiralty Charts BA 366, BA 367, BA 368Dakar to Freetown at 1:1,500,000; supplement with BA 1158 (Dakar approaches) and BA 719 (Sierra Leone River).
- SHOM Chart 6327Casamance river and estuary — best available for bar crossing planning.
Online Cruiser Communities
- Noonsite.com — West AfricaBest single source for current check-in procedures, agent recommendations, and hazard reports. Filter by country. Read reports dated within the current season.
- Facebook: Cruising in West AfricaActive community with real-time pirogue sighting reports, anchorage conditions, and official boarding experiences. Essential reading before each leg.
- ARC+ Africa Rally forum (World Cruising Club)The ARC rally follows parts of this route; their debriefs contain excellent current hazard summaries.
- Cruiser’s Forum (Cruiserlog.com)Historical trip reports archived by region. Search “Senegal”, “Gambia”, “Sierra Leone” for passage accounts dating back to 2010.
Weather Tools
- Passage Weather (passageweather.com)7-day GFS wind/wave forecasts with 3-hourly resolution. Best free tool for passage timing decisions.
- PredictWind Offshore AppMulti-model comparison (GFS, ECMWF, PWE, PWG). Recommended for the Mindelo → Dakar offshore leg where model agreement matters.
- Windy.comExcellent visual interface; ECMWF model preferred. Note the Harmattan wind layer — toggle to 925 hPa for better Harmattan visualisation.
- Météo France Sénégal (ASECNA)Official national service (meteo.sn). Best for coastal upwelling and Harmattan-specific forecasts. Available in French.
- MDAT-GoG Maritime Safety (UK MCA)Register passage plans here for SAR coverage even though Senegal/Gambia are outside the Gulf of Guinea advisory zone. Free registration.
Visa & Entry Verification Links
- Senegal eVisa (if required)evisa.sec.gouv.sn — check current status for your passport nationality before applying.
- Sierra Leone eVisaevisa.immigration.gov.sl — apply minimum 2 weeks before arrival. USD 80 single entry 30-day.
- Gambia Immigration Deptimmigration.gov.gm — current visa information and passport requirements.
- FCDO Travel Advice (UK)gov.uk/foreign-travel-advice — check Senegal, Gambia, and Sierra Leone pages for current security advisories.