Average annual temperature is 27.8 °C
Absolute maximum temperature: 40.1 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 132 days
Number of rainy days: 233 days
Look at detailed online map of São Tomé
* Weather data for São Tomé Brazil is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 35.3 | 32.3 | 32.5 | 32.3 | 32.4 | 33.0 | 35.3 | 36.7 | 39.2 | 40.1 | 38.7 | 38.3 |
| Average daytime temperature (°C) | 31.8 | 30.6 | 29.9 | 30.5 | 31.3 | 31.7 | 32.3 | 35.2 | 37.4 | 37.5 | 37.0 | 36.1 |
| Average temperature (°C) | 26.6 | 25.9 | 25.5 | 25.9 | 26.9 | 26.9 | 27.3 | 28.8 | 29.9 | 30.0 | 30.1 | 29.5 |
| Average night temperature (°C) | 23.2 | 23.0 | 22.7 | 23.0 | 23.6 | 23.1 | 22.9 | 23.6 | 24.2 | 24.7 | 25.3 | 25.0 |
| Absolute minimum temperature (°C) | 21.9 | 21.9 | 21.4 | 22.1 | 22.4 | 22.4 | 21.1 | 22.4 | 23.2 | 23.9 | 24.6 | 24.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 9.7 | 9.2 | 8.1 | 8.5 | 10.4 | 10.7 | 11.2 | 11.3 | 11.3 | 11.1 | 11.0 | 10.4 |
| Precipitation (mm) | 172 | 273 | 527 | 318 | 76 | 50 | 4 | 1 | 1 | 4 | 14 | 72 |
| Sunny days | 3 | 0 | 2 | 4 | 4 | 7 | 19 | 23 | 26 | 21 | 12 | 11 |
| Rainy days | 28 | 28 | 29 | 26 | 27 | 23 | 12 | 8 | 4 | 10 | 18 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in São Tomé is at