Average annual temperature is 24.9 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: 7.5 °C
Number of sunny days: 170 days
Number of rainy days: 195 days
Look at detailed online map of Hilli
* Weather data for Hilli Bangladesh is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 26.8 | 31.2 | 33.3 | 40.8 | 40.1 | 38.4 | 34.9 | 35.6 | 35.8 | 32.3 | 32.2 | 28.3 |
| Average daytime temperature (°C) | 22.7 | 26.9 | 30.0 | 34.8 | 33.3 | 33.1 | 32.7 | 32.4 | 32.2 | 30.4 | 29.5 | 25.2 |
| Average temperature (°C) | 16.0 | 20.1 | 23.5 | 27.3 | 27.7 | 28.9 | 29.2 | 28.7 | 28.6 | 25.9 | 23.3 | 19.3 |
| Average night temperature (°C) | 10.4 | 14.0 | 18.0 | 21.0 | 23.1 | 25.4 | 26.1 | 25.9 | 25.8 | 22.2 | 17.8 | 14.2 |
| Absolute minimum temperature (°C) | 7.5 | 11.0 | 14.8 | 17.4 | 21.4 | 23.4 | 24.6 | 24.2 | 24.1 | 18.1 | 15.0 | 11.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.8 | 11.3 | 12.0 | 12.8 | 13.4 | 13.7 | 13.5 | 13.0 | 12.3 | 11.6 | 10.9 | 10.6 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.3 | 9.9 | 9.6 | 10.7 | 9.9 | 7.6 | 8.8 | 7.9 | 8.1 | 9.2 | 9.7 | 8.4 |
| Precipitation (mm) | 0 | 1 | 58 | 63 | 269 | 551 | 253 | 353 | 278 | 198 | 0 | 18 |
| Sunny days | 30 | 25 | 19 | 21 | 10 | 2 | 0 | 1 | 1 | 10 | 27 | 24 |
| Rainy days | 1 | 3 | 12 | 9 | 21 | 28 | 31 | 30 | 29 | 21 | 3 | 7 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hilli is at