Average annual temperature is 25.9 °C
Absolute maximum temperature: 40.0 °C
Absolute minimum temperature: 9.9 °C
Number of sunny days: 158 days
Number of rainy days: 207 days
Look at detailed online map of Sīāli
* Weather data for Sīāli 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) | 29.9 | 32.5 | 34.2 | 40.0 | 38.0 | 38.3 | 34.1 | 33.9 | 33.7 | 33.5 | 32.5 | 28.8 |
| Average daytime temperature (°C) | 25.6 | 29.5 | 31.2 | 35.1 | 34.4 | 34.3 | 32.4 | 32.2 | 31.7 | 31.3 | 29.1 | 25.6 |
| Average temperature (°C) | 18.8 | 22.8 | 25.1 | 28.7 | 29.2 | 29.9 | 28.9 | 28.6 | 28.2 | 26.8 | 23.7 | 19.9 |
| Average night temperature (°C) | 13.2 | 16.9 | 19.9 | 23.6 | 24.9 | 27.1 | 26.4 | 26.1 | 25.8 | 22.9 | 18.6 | 15.2 |
| Absolute minimum temperature (°C) | 9.9 | 12.6 | 18.0 | 20.7 | 22.2 | 24.8 | 24.6 | 25.0 | 24.3 | 19.6 | 15.9 | 12.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.9 | 11.4 | 12.0 | 12.7 | 13.2 | 13.5 | 13.4 | 12.9 | 12.3 | 11.6 | 11.1 | 10.8 |
| Daylight minimum duration (h) | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 9.7 | 9.6 | 9.1 | 10.5 | 9.8 | 7.4 | 10.3 | 8.1 | 8.0 | 8.9 | 9.3 | 8.7 |
| Precipitation (mm) | 0 | 4 | 95 | 53 | 180 | 257 | 228 | 410 | 278 | 147 | 133 | 38 |
| Sunny days | 31 | 22 | 15 | 13 | 7 | 1 | 0 | 0 | 1 | 17 | 25 | 26 |
| Rainy days | 0 | 6 | 16 | 17 | 24 | 29 | 31 | 31 | 29 | 14 | 5 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Sīāli is at