Average annual temperature is 25.5 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 17.6 °C
Number of sunny days: 67 days
Number of rainy days: 298 days
Look at detailed online map of Joi
* Weather data for Joi 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) | 35.8 | 36.6 | 37.7 | 34.8 | 34.5 | 31.9 | 32.5 | 32.6 | 32.5 | 31.7 | 32.1 | 35.0 |
| Average daytime temperature (°C) | 33.9 | 34.8 | 33.8 | 32.7 | 31.2 | 29.3 | 29.0 | 28.7 | 29.1 | 29.5 | 30.2 | 32.5 |
| Average temperature (°C) | 26.2 | 27.4 | 26.7 | 26.5 | 25.9 | 24.6 | 24.3 | 24.2 | 24.5 | 24.7 | 25.3 | 25.7 |
| Average night temperature (°C) | 21.1 | 22.8 | 22.6 | 23.2 | 23.2 | 22.4 | 22.1 | 22.3 | 22.2 | 22.3 | 22.5 | 21.1 |
| Absolute minimum temperature (°C) | 17.8 | 21.6 | 20.6 | 22.1 | 22.1 | 21.4 | 21.0 | 21.0 | 21.6 | 21.3 | 21.6 | 17.6 |
| 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 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 | 12.5 | 12.4 | 12.2 | 12.0 | 11.8 | 11.7 |
| 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) | 9.4 | 9.6 | 8.3 | 8.1 | 7.4 | 7.1 | 6.8 | 5.3 | 6.6 | 7.2 | 8.1 | 9.7 |
| Precipitation (mm) | 8 | 14 | 79 | 216 | 364 | 369 | 477 | 575 | 438 | 364 | 147 | 14 |
| Sunny days | 22 | 16 | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 19 |
| Rainy days | 9 | 12 | 25 | 29 | 30 | 30 | 31 | 31 | 30 | 31 | 28 | 12 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Joi is at