Average annual temperature is 17.5 °C
Absolute maximum temperature: 26.8 °C
Absolute minimum temperature: 11.2 °C
Number of sunny days: 59 days
Number of rainy days: 306 days
Look at detailed online map of Heluli
* Weather data for Heluli 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) | 25.3 | 26.5 | 26.8 | 24.6 | 23.7 | 21.2 | 21.7 | 23.1 | 24.2 | 25.3 | 24.2 | 23.9 |
| Average daytime temperature (°C) | 23.3 | 24.8 | 24.3 | 21.6 | 20.8 | 19.6 | 19.6 | 20.3 | 22.1 | 23.0 | 21.5 | 22.3 |
| Average temperature (°C) | 18.6 | 19.1 | 19.0 | 17.9 | 17.1 | 16.0 | 15.4 | 15.8 | 16.8 | 17.9 | 17.7 | 18.7 |
| Average night temperature (°C) | 15.2 | 15.2 | 15.3 | 15.3 | 14.6 | 13.5 | 12.7 | 12.7 | 13.3 | 14.1 | 15.0 | 16.2 |
| Absolute minimum temperature (°C) | 14.1 | 14.1 | 14.1 | 13.8 | 13.7 | 12.2 | 11.7 | 11.2 | 12.2 | 12.2 | 13.4 | 15.2 |
| 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) | 11.2 | 11.2 | 10.4 | 9.0 | 10.6 | 10.0 | 10.8 | 10.7 | 10.8 | 11.0 | 9.1 | 10.9 |
| Precipitation (mm) | 55 | 56 | 105 | 208 | 93 | 68 | 18 | 42 | 64 | 86 | 336 | 204 |
| Sunny days | 4 | 8 | 5 | 1 | 2 | 11 | 9 | 8 | 5 | 5 | 1 | 0 |
| Rainy days | 27 | 20 | 26 | 29 | 29 | 19 | 22 | 23 | 25 | 26 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Heluli is at