When to Visit Cotonou: Seasonal Weather, Floods, and Travel Timing

Weather and Seasonal Cycles in Cotonou

Cotonou has two dry and two wet periods. The primary dry season runs from late November to February, marked by warm weather and the Harmattan—a dry Saharan wind that dims sunlight with dust and lowers humidity. Crowds peak during this window. August and September bring a shorter, cooler dry break with overcast skies. Between April and July, the main wet season brings torrential downpours that flood streets across the coastal strip, while a briefer rainy period spans October and early November.

When to Go and What to Avoid

Your travel dates determine how easily you can explore the city and surrounding waterways:

• December to February: Best for general sightseeing, walking downtown, visiting Cotonou Cathedral, and navigating Dantokpa Market on dry ground. Water trips on Lake Nokoué are calm and predictable.
• August and September: Best for travelers wanting milder temperatures without intense midday heat or heavy rains.
• May and June: The worst months to visit. Relentless rains flood low-lying streets, paralyzing local motorcycle taxi routes.

Events and Peak Booking Windows

Travel demand surges from late December through mid-January due to holiday visits and National Vodun Day on January 10. While major ceremonies occur along the coast, Cotonou Cadjehoun Airport (COO) handles international arrivals, creating scarce lodging vacancies and high competition for private drivers.

What to Pack and Prepare

For dry season travel, pack lightweight cotton clothing, sun protection, and a bandana or mask to shield against dust when riding motorcycle taxis. If traveling during the wet season, bring waterproof sandals, quick-drying fabrics, and a sturdy umbrella.