Climate averages 1991–2020
Grand-Bassam weather
by month.
See how the year changes. March (tied with April) has the highest average daily maximum; January has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Grand-Bassam averages a daytime high of 27.3°C and a nighttime low of 24.9°C, with about 1,282 mm of rain on roughly 247 days. March (tied with April) is the warmest month (average high 28.6°C) and August the coolest (25.1°C). June is the wettest month with 250 mm; January is the driest with 47 mm.
The annual picture
A year in Grand-Bassam
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Grand-Bassam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.1°C25.5°C | 25.5°C | 47 | 13.7 | 11.912 h |
| February | 28.3°C25.9°C | 25.9°C | 55 | 16.5 | 12.012 h |
| March | 28.6°C26.1°C | 26.1°C | 78 | 20.2 | 12.112 h |
| April | 28.6°C25.9°C | 25.9°C | 103 | 21.9 | 12.212 h |
| May | 27.9°C25.3°C | 25.3°C | 206 | 27.9 | 12.412 h |
| June | 26.6°C24.4°C | 24.4°C | 250 | 27.3 | 12.412 h |
| July | 25.6°C23.8°C | 23.8°C | 129 | 19.8 | 12.412 h |
| August | 25.1°C23.3°C | 23.3°C | 64 | 14.3 | 12.312 h |
| September | 25.6°C23.6°C | 23.6°C | 88 | 18.3 | 12.112 h |
| October | 26.7°C24.3°C | 24.3°C | 107 | 24.2 | 12.012 h |
| November | 27.8°C25.0°C | 25.0°C | 93 | 24.2 | 11.912 h |
| December | 28.1°C25.6°C | 25.6°C | 63 | 18.9 | 11.812 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- BingervilleIvory Coast · 23 kmHigh 28.4°C · Low 23.7°C · 1,287 mm rain a year
- KoumassiIvory Coast · 27 kmHigh 28.0°C · Low 24.5°C · 1,287 mm rain a year
- AbidjanIvory Coast · 33 kmHigh 28.5°C · Low 23.8°C · 1,287 mm rain a year
- AnyamaIvory Coast · 47 kmHigh 29.0°C · Low 23.0°C · 1,826 mm rain a year
- DabouIvory Coast · 72 kmHigh 28.1°C · Low 24.3°C · 1,252 mm rain a year
- AgbovilleIvory Coast · 95 kmHigh 30.5°C · Low 23.1°C · 1,298 mm rain a year
- AdzopéIvory Coast · 100 kmHigh 30.2°C · Low 22.9°C · 1,420 mm rain a year
- AbengourouIvory Coast · 171 kmHigh 30.8°C · Low 22.8°C · 958 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC±0, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 5.20°, -3.80° (7 km from the city centre). Rain comes from the 0.25° cell at 5.25°, -3.75°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.