Climate averages 1991–2020
São Tomé weather
in March.
A warm, wet month: the warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in São Tomé: daytime highs average 27.8°C and nights cool to about 25.7°C. By daytime temperature it is the warmest month of the year.
Expect about 133 mm of rain on roughly 21 days, which makes March a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 07 min on an average March day.
The nearest other city in this atlas is Port-Gentil (257 km away). In March its highs average 29.3°C, 1.5°C warmer than São Tomé, with 176 mm of rain.
From March to April, average highs fall by 0.2°C to 27.6°C, and monthly rainfall falls from 133 mm to 130 mm.
The annual picture
March in context
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
São Tomé climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.9°C24.9°C | 24.9°C | 135 | 23.6 | 12.112 h |
| February | 27.5°C25.4°C | 25.4°C | 115 | 19.4 | 12.112 h |
| March, selected | 27.8°C25.7°C | 25.7°C | 133 | 20.5 | 12.112 h |
| April | 27.6°C25.7°C | 25.7°C | 130 | 18.7 | 12.112 h |
| May | 26.8°C25.2°C | 25.2°C | 119 | 17.0 | 12.112 h |
| June | 25.5°C24.1°C | 24.1°C | 23 | 4.0 | 12.112 h |
| July | 24.9°C23.3°C | 23.3°C | 7.7 | 2.0 | 12.112 h |
| August | 25.0°C23.3°C | 23.3°C | 14 | 2.6 | 12.112 h |
| September | 25.5°C23.8°C | 23.8°C | 46 | 7.8 | 12.112 h |
| October | 25.8°C24.2°C | 24.2°C | 152 | 21.5 | 12.112 h |
| November | 26.1°C24.4°C | 24.4°C | 210 | 25.7 | 12.112 h |
| December | 26.5°C24.6°C | 24.6°C | 174 | 26.1 | 12.112 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
March in nearby cities
- Port-Gentil in MarchGabon · 257 kmHigh 29.3°C · Low 24.8°C · 176 mm rain
- Libreville in MarchGabon · 303 kmHigh 29.4°C · Low 24.5°C · 270 mm rain
- Owendo in MarchGabon · 309 kmHigh 30.0°C · Low 24.0°C · 267 mm rain
- Bata in MarchEquatorial Guinea · 378 kmHigh 29.4°C · Low 24.2°C · 236 mm rain
- Malabo in MarchEquatorial Guinea · 443 kmHigh 28.9°C · Low 26.2°C · 165 mm rain
- Kribi in MarchCameroon · 456 kmHigh 28.6°C · Low 24.8°C · 210 mm rain
- Ciudad de la Paz in MarchEquatorial Guinea · 476 kmHigh 28.5°C · Low 20.5°C · 251 mm rain
- Ogbia in MarchNigeria · 486 kmHigh 30.8°C · Low 24.8°C · 218 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for São Tomé) is explained once on the São Tomé year overview and on the Sources, method and limits page.