Average annual temperature is 18.5 °C
Absolute maximum temperature: 30.2 °C
Absolute minimum temperature: 8.8 °C
Number of sunny days: 84 days
Number of rainy days: 281 days
Look at detailed online map of Arri
* Weather data for Arri 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) | 28.9 | 28.3 | 29.5 | 24.7 | 24.3 | 23.4 | 24.5 | 25.6 | 27.9 | 30.2 | 26.1 | 27.0 |
| Average daytime temperature (°C) | 26.0 | 26.8 | 25.8 | 22.9 | 22.0 | 21.5 | 21.1 | 22.5 | 25.4 | 26.9 | 23.3 | 24.5 |
| Average temperature (°C) | 20.0 | 20.7 | 20.0 | 18.1 | 17.6 | 16.6 | 15.7 | 16.8 | 18.7 | 20.1 | 18.2 | 19.3 |
| Average night temperature (°C) | 14.6 | 14.8 | 15.1 | 15.2 | 14.3 | 12.1 | 10.9 | 11.9 | 13.4 | 14.7 | 15.4 | 15.4 |
| Absolute minimum temperature (°C) | 13.1 | 12.3 | 13.5 | 13.6 | 11.6 | 9.9 | 8.8 | 9.7 | 11.9 | 12.1 | 13.8 | 13.7 |
| 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) | 11.4 | 11.2 | 10.4 | 9.5 | 9.1 | 9.8 | 9.6 | 9.5 | 9.9 | 10.4 | 9.7 | 11.1 |
| Precipitation (mm) | 18 | 40 | 94 | 222 | 92 | 44 | 30 | 41 | 31 | 51 | 249 | 94 |
| Sunny days | 10 | 12 | 7 | 0 | 2 | 11 | 9 | 6 | 9 | 9 | 1 | 8 |
| Rainy days | 21 | 16 | 24 | 30 | 29 | 19 | 22 | 25 | 21 | 22 | 29 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Arri is at