Average annual temperature is 15.2 °C
Absolute maximum temperature: 28.4 °C
Absolute minimum temperature: -2.2 °C
Number of sunny days: 137 days
Number of rainy days: 228 days
Look at detailed online map of Bireṭhā̃ṭi̇̄
* Weather data for Bireṭhā̃ṭi̇̄ Nepal is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 17.6 | 17.2 | 19.8 | 26.8 | 25.6 | 28.4 | 25.7 | 25.0 | 24.5 | 24.1 | 19.4 | 17.2 |
| Average daytime temperature (°C) | 13.2 | 14.9 | 17.1 | 21.5 | 21.9 | 24.6 | 22.7 | 22.4 | 22.7 | 19.3 | 16.7 | 13.8 |
| Average temperature (°C) | 8.6 | 10.0 | 12.4 | 16.4 | 17.4 | 20.5 | 19.5 | 19.3 | 19.4 | 16.1 | 13.2 | 9.6 |
| Average night temperature (°C) | 4.0 | 4.8 | 7.6 | 10.6 | 12.7 | 16.5 | 17.2 | 17.2 | 16.3 | 13.0 | 9.8 | 4.9 |
| Absolute minimum temperature (°C) | -2.2 | -0.3 | 3.2 | 5.5 | 9.3 | 13.7 | 16.3 | 15.3 | 13.9 | 7.1 | 7.0 | -0.3 |
| 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) | 10.6 | 11.2 | 12.0 | 12.8 | 13.6 | 13.9 | 13.7 | 13.1 | 12.3 | 11.5 | 10.8 | 10.4 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 8.8 | 9.9 | 9.9 | 10.0 | 10.7 | 10.7 | 7.9 | 6.4 | 9.7 | 9.3 | 9.3 | 8.9 |
| Precipitation (mm) | 1 | 18 | 47 | 23 | 49 | 263 | 504 | 442 | 137 | 89 | 8 | 6 |
| Sunny days | 29 | 17 | 7 | 14 | 8 | 4 | 0 | 0 | 3 | 8 | 19 | 28 |
| Rainy days | 2 | 11 | 24 | 16 | 23 | 26 | 31 | 31 | 27 | 23 | 11 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bireṭhā̃ṭi̇̄ is at