Average annual temperature is 26.3 °C
Absolute maximum temperature: 38.5 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 115 days
Number of rainy days: 250 days
Look at detailed online map of Tongboi
* Weather data for Tongboi Sierra Leone is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 38.1 | 38.1 | 38.5 | 37.5 | 37.2 | 32.8 | 33.3 | 33.4 | 32.9 | 33.0 | 33.9 | 36.0 |
| Average daytime temperature (°C) | 36.0 | 36.9 | 35.6 | 35.3 | 33.1 | 30.3 | 30.3 | 28.9 | 29.9 | 30.7 | 31.7 | 33.8 |
| Average temperature (°C) | 27.1 | 28.3 | 27.7 | 28.1 | 27.1 | 25.3 | 24.9 | 24.6 | 25.0 | 25.5 | 26.3 | 26.1 |
| Average night temperature (°C) | 20.7 | 22.5 | 22.9 | 23.7 | 24.0 | 23.0 | 22.5 | 22.5 | 22.6 | 22.8 | 22.9 | 20.8 |
| Absolute minimum temperature (°C) | 17.6 | 21.4 | 20.8 | 22.5 | 23.0 | 21.8 | 21.0 | 21.5 | 21.6 | 22.0 | 22.0 | 17.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.7 | 9.8 | 9.3 | 8.7 | 7.3 | 6.3 | 7.3 | 5.2 | 6.3 | 7.2 | 8.2 | 9.7 |
| Precipitation (mm) | 1 | 0 | 18 | 100 | 282 | 388 | 518 | 664 | 473 | 415 | 143 | 3 |
| Sunny days | 27 | 27 | 16 | 13 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 25 |
| Rainy days | 4 | 1 | 15 | 17 | 30 | 30 | 31 | 31 | 30 | 31 | 24 | 6 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Tongboi is at