Climate Overview
The climate in Ouidah is hot. The average annual temperature is 28°C and approximately 1120mm of precipitation falls per year. June is the wettest month, receiving around 239mm of rainfall. Ouidah sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Ouidah has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is March, when average highs reach 32°C and the mean temperature sits around 29°C. August is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.
Precipitation
Ouidah is a moderately rainy area, receiving approximately 1120mm of precipitation annually, which averages out to around 93mm per month. The wettest month is June, averaging 239mm of rainfall. October and September also tend to see above-average precipitation. The driest month is January, with just 15mm. That's 224mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Ouidah is mildly breezy, with an average annual wind speed of 13km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 16km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 13km/h in spring, 15km/h in summer, 11km/h in autumn.
Seasons
89 days until Winter
It is currently autumn in Ouidah, which began on September 23, 2026. Ouidah sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in March at around 32°C, while the coldest stretch bottoms out in August near 24°C. Winter is next, beginning on December 21, 2026 (89 days from now).
Spring
Temperatures range from 26 to 32°C. Precipitation is moderate at around 214mm for the season, averaging 71mm per month. Winds are generally light, averaging 13km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 29°C. Rainfall is heavy, totalling around 438mm across the season with a monthly average of 146mm. Winds are generally light, averaging 15km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 31°C. Rainfall is heavy, totalling around 401mm across the season with a monthly average of 134mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 26 to 32°C. Rainfall is relatively light, with around 66mm over the season and a monthly average of 22mm. Winds are generally light, averaging 11km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Ouidah based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
