Average annual temperature is 21.8 °C
Absolute maximum temperature: 33.4 °C
Absolute minimum temperature: 12.9 °C
Number of sunny days: 194 days
Number of rainy days: 171 days
Look at detailed online map of Irisya
* Weather data for Irisya 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) | 30.8 | 30.3 | 29.4 | 28.5 | 29.7 | 28.4 | 29.6 | 31.4 | 31.6 | 33.4 | 31.2 | 29.7 |
| Average daytime temperature (°C) | 27.0 | 27.6 | 25.6 | 26.0 | 27.7 | 27.4 | 26.9 | 28.3 | 30.0 | 31.3 | 28.5 | 26.5 |
| Average temperature (°C) | 21.5 | 22.3 | 20.6 | 20.7 | 21.7 | 21.4 | 20.5 | 21.6 | 23.5 | 24.5 | 22.1 | 21.3 |
| Average night temperature (°C) | 16.3 | 17.1 | 16.4 | 16.6 | 16.1 | 15.5 | 14.3 | 15.2 | 16.8 | 18.1 | 17.4 | 16.9 |
| Absolute minimum temperature (°C) | 15.0 | 15.1 | 14.3 | 15.4 | 14.6 | 14.1 | 12.9 | 13.7 | 15.0 | 16.4 | 15.9 | 15.1 |
| 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) | 12.4 | 12.3 | 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 | 10.4 | 10.7 | 10.7 | 10.4 | 10.9 | 10.7 | 10.9 | 10.9 | 10.3 | 10.2 |
| Precipitation (mm) | 53 | 35 | 140 | 53 | 8 | 1 | 0 | 0 | 1 | 8 | 78 | 125 |
| Sunny days | 9 | 12 | 6 | 4 | 19 | 26 | 31 | 31 | 25 | 20 | 7 | 4 |
| Rainy days | 22 | 16 | 25 | 26 | 12 | 4 | 0 | 0 | 5 | 11 | 23 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Irisya is at