Average annual temperature is 25.1 °C
Absolute maximum temperature: 37.3 °C
Absolute minimum temperature: 14.7 °C
Number of sunny days: 181 days
Number of rainy days: 184 days
Look at detailed online map of Issui
* Weather data for Issui Tanzania is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.6 | 34.7 | 33.5 | 32.1 | 33.3 | 33.1 | 33.6 | 35.9 | 36.4 | 37.3 | 34.9 | 32.6 |
| Average daytime temperature (°C) | 31.0 | 31.9 | 28.5 | 29.1 | 30.4 | 31.9 | 31.5 | 32.9 | 33.6 | 34.9 | 29.3 | 29.2 |
| Average temperature (°C) | 25.0 | 26.1 | 23.2 | 23.5 | 24.5 | 25.3 | 24.5 | 25.8 | 27.1 | 28.1 | 23.9 | 23.7 |
| Average night temperature (°C) | 19.5 | 20.4 | 18.8 | 18.8 | 18.5 | 18.7 | 16.6 | 18.2 | 20.1 | 21.4 | 19.5 | 19.1 |
| Absolute minimum temperature (°C) | 18.1 | 18.1 | 17.5 | 17.3 | 17.2 | 15.7 | 14.7 | 16.6 | 18.3 | 19.5 | 18.1 | 17.6 |
| 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 | 11.9 | 11.9 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.4 |
| 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) | 11.0 | 10.9 | 10.2 | 10.2 | 10.7 | 10.6 | 10.8 | 10.3 | 10.8 | 10.6 | 10.0 | 10.7 |
| Precipitation (mm) | 50 | 30 | 198 | 124 | 21 | 1 | 0 | 0 | 7 | 12 | 143 | 165 |
| Sunny days | 10 | 17 | 5 | 2 | 17 | 25 | 31 | 30 | 20 | 20 | 0 | 4 |
| Rainy days | 21 | 11 | 26 | 28 | 14 | 5 | 0 | 1 | 10 | 11 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Issui is at