Average temperature in September is 25.2 °C
Average daytime temperature is 29.3 °C
Average night temperature is 22.3 °C
Absolute maximum temperature: 32.1 °C
Absolute minimum temperature: 19.7 °C
Number of sunny days: 2
Number of rainy days: 28
Number of snow days:
Precipitation sum: 101 mm
* Weather data for Birendranagar Nepal is based on climate observations for 2023 year
| September (°C) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperature | 30.5 | 30.7 | 31.5 | 32.1 | 29.3 | 30.8 | 31.3 | 30.5 | 26.8 | 25.4 | 26 | 30.8 | 30.4 | 30.6 | 29.8 | 29.9 | 29 | 29.5 | 29.4 | 28.2 | 27.4 | 27.5 | 28.6 | 27.6 | 26.8 | 29.1 | 28.5 | 29.8 | 30.5 | 30.8 |
| Apparent max temperature | 36.5 | 36.8 | 37.5 | 38.4 | 35 | 35.7 | 36.1 | 35.7 | 31.8 | 31 | 31 | 36.5 | 36.2 | 37 | 35.2 | 35.4 | 33.7 | 35.8 | 34.4 | 32.8 | 32.4 | 31.4 | 33.5 | 31.6 | 31.1 | 34 | 33.1 | 34 | 35.1 | 35.7 |
| Mean temperature | 26.8 | 26.5 | 26.4 | 26.7 | 26.2 | 26.9 | 27.1 | 25.7 | 24 | 23.9 | 23.5 | 25.7 | 25.9 | 26 | 25.5 | 25.3 | 25.1 | 24.9 | 25.1 | 24.7 | 24.2 | 23.6 | 24.2 | 23.3 | 23.2 | 24.3 | 24.5 | 25.3 | 25.3 | 25.5 |
| Apparent mean temperature | 27.8 | 28.3 | 27.6 | 27.8 | 27.9 | 29.4 | 28.1 | 27.7 | 26.7 | 27.3 | 25.2 | 25.8 | 27.3 | 27.2 | 27.5 | 27.2 | 26.4 | 26.5 | 25.7 | 25.3 | 24.7 | 23.5 | 25 | 22.8 | 24.5 | 24 | 24.2 | 24.6 | 24.9 | 24.6 |
| Minimum temperature | 23.5 | 23.8 | 23.3 | 23.6 | 23.8 | 24.4 | 24 | 22.9 | 22.2 | 22.7 | 21.8 | 22.2 | 22.7 | 23.1 | 22.9 | 23 | 22.6 | 22.7 | 22 | 21.6 | 20.9 | 20.3 | 21.4 | 19.7 | 20.9 | 20.6 | 20.8 | 21.5 | 22 | 21 |
| Apparent min temperature | 32.1 | 31.9 | 31.8 | 32.1 | 31.6 | 32.3 | 32 | 30.7 | 29.1 | 29.2 | 28.1 | 30.5 | 31.2 | 31.2 | 30.6 | 30.2 | 29.9 | 29.7 | 29.8 | 29.2 | 28.7 | 27.7 | 28.3 | 27.4 | 27.2 | 28.4 | 28.7 | 29.3 | 29.2 | 29.8 |
| September | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight duration (h) | 12.7 | 12.7 | 12.7 | 12.7 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.1 | 12 | 12 | 12 | 12 | 11.9 |
| Sunshine duration (h) | 11.1 | 11.1 | 11.1 | 11.1 | 7.7 | 5.1 | 10.3 | 10.3 | 3 | 0.4 | 0.4 | 10.3 | 11 | 9.7 | 10.3 | 7.7 | 9.5 | 11 | 11 | 11 | 11 | 10.1 | 11 | 10.7 | 11 | 11 | 11 | 11 | 11 | 11 |
| Precipitation (mm) | 0.3 | 2.8 | 2.2 | 1.6 | 2.1 | 0 | 0 | 1.1 | 12.7 | 8.9 | 11.1 | 0.4 | 5.7 | 3.8 | 5.8 | 6.5 | 3.9 | 5.9 | 1.1 | 2.5 | 6.2 | 2.8 | 1.4 | 2.2 | 1.8 | 1.4 | 2 | 0.1 | 0.3 | 4.2 |
| Precipitation hours | 3 | 12 | 4 | 2 | 5 | 0 | 0 | 5 | 18 | 21 | 12 | 3 | 9 | 3 | 13 | 5 | 7 | 4 | 6 | 8 | 9 | 11 | 5 | 12 | 7 | 3 | 9 | 1 | 1 | 2 |
| Wind speed (m/s) | 8.9 | 7.1 | 8.8 | 6.9 | 6.8 | 6 | 8.1 | 8 | 6.8 | 4.8 | 5.1 | 8.4 | 7.1 | 6.9 | 7.1 | 6.8 | 7.8 | 7.6 | 8.1 | 7.1 | 7.4 | 6.6 | 8.6 | 8.1 | 6.6 | 7 | 7.9 | 8 | 7.8 | 6.8 |
In September 2023, the highest daytime temperature in Birendranagar was 32.1°C.
While the minimum temperature at night dropped to 19.7°C.
The average nighttime and daytime temperatures during September in Birendranagar are 22.3°C and 29.3°C respectively.
The precipitation sum in September is about 101 mm.