Average annual temperature is 24.7 °C
Absolute maximum temperature: 36.4 °C
Absolute minimum temperature: 8.5 °C
Number of sunny days: 156 days
Number of rainy days: 209 days
Look at detailed online map of Sylhet
* Weather data for Sylhet 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) | 28.3 | 29.7 | 32.5 | 35.7 | 35.9 | 35.4 | 35.1 | 36.1 | 36.4 | 33.0 | 32.7 | 28.4 |
| Average daytime temperature (°C) | 24.4 | 26.8 | 28.9 | 31.7 | 31.8 | 31.4 | 32.2 | 31.5 | 32.7 | 30.5 | 29.3 | 25.6 |
| Average temperature (°C) | 17.8 | 20.3 | 22.6 | 25.6 | 26.9 | 27.5 | 28.4 | 27.9 | 28.7 | 26.2 | 23.7 | 20.3 |
| Average night temperature (°C) | 11.8 | 14.6 | 17.8 | 20.6 | 22.8 | 24.7 | 25.4 | 25.4 | 25.5 | 22.5 | 18.3 | 15.3 |
| Absolute minimum temperature (°C) | 8.5 | 11.2 | 16.4 | 18.0 | 21.2 | 22.7 | 24.5 | 24.2 | 24.0 | 20.3 | 14.5 | 12.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 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 | 12.7 | 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) | 9.5 | 9.0 | 7.4 | 9.1 | 9.9 | 7.2 | 8.2 | 6.7 | 9.2 | 8.9 | 9.3 | 8.4 |
| Precipitation (mm) | 1 | 28 | 156 | 138 | 260 | 724 | 662 | 791 | 400 | 368 | 45 | 17 |
| Sunny days | 30 | 21 | 14 | 15 | 7 | 2 | 0 | 2 | 3 | 12 | 27 | 23 |
| Rainy days | 1 | 7 | 17 | 15 | 24 | 28 | 31 | 29 | 27 | 19 | 3 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sylhet is at