Average temperature in September is 28.6 °C
Average daytime temperature is 32.5 °C
Average night temperature is 25.5 °C
Absolute maximum temperature: 35 °C
Absolute minimum temperature: 23.4 °C
Number of sunny days: 4
Number of rainy days: 26
Number of snow days:
Precipitation sum: 117 mm
* Weather data for Janakpur 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 | 32.7 | 32 | 34.3 | 34 | 34.4 | 35 | 33.6 | 31.2 | 30.9 | 33.1 | 33 | 32.8 | 33.9 | 32.8 | 32.1 | 33.4 | 34.5 | 34.7 | 32.7 | 31.9 | 29.7 | 29.5 | 27.3 | 28.6 | 30.6 | 31.8 | 32.4 | 33.6 | 34.4 | 33.9 |
| Apparent max temperature | 40.8 | 40 | 42.9 | 41 | 41.3 | 41.7 | 40.3 | 35.5 | 36.2 | 41.6 | 40.7 | 40.2 | 42.6 | 38.6 | 37.1 | 40.1 | 42.1 | 43 | 38.8 | 37 | 33.6 | 32 | 30.7 | 31.1 | 36 | 38.5 | 39.6 | 41.3 | 42.5 | 41.1 |
| Mean temperature | 29.4 | 28 | 29.8 | 29.2 | 29.4 | 30.3 | 29.2 | 27.6 | 27.6 | 29.5 | 29.2 | 28.5 | 30 | 30.1 | 29.6 | 29.8 | 29 | 29.1 | 29 | 28.9 | 27.3 | 27.1 | 25.5 | 25.4 | 26.8 | 27.7 | 28.1 | 28.8 | 29.9 | 28.1 |
| Apparent mean temperature | 33.2 | 32.5 | 31.7 | 31.8 | 31.6 | 32.5 | 30.9 | 27.9 | 27.7 | 32.2 | 31.9 | 31.8 | 33.1 | 31.1 | 31.9 | 32.3 | 26.9 | 30.2 | 30.7 | 28.7 | 28.5 | 27 | 26.2 | 26.3 | 27.4 | 29.1 | 29.1 | 29.7 | 30.8 | 30.8 |
| Minimum temperature | 26.6 | 26.1 | 25.8 | 26.1 | 26 | 26.7 | 26.3 | 24.7 | 24.7 | 26.2 | 26.3 | 26.1 | 27.1 | 27.2 | 27.1 | 26.3 | 24.7 | 24.7 | 25.6 | 25.8 | 25.6 | 24.5 | 23.8 | 23.4 | 23.9 | 24.1 | 23.9 | 24.4 | 25.5 | 25.4 |
| Apparent min temperature | 36.6 | 34.9 | 36.8 | 36.1 | 36.1 | 36.9 | 34.9 | 31.3 | 32.4 | 36.3 | 36 | 34.7 | 36.9 | 35.4 | 34.4 | 36 | 35.4 | 35.4 | 34.4 | 33.2 | 30.2 | 29.7 | 28.6 | 28.5 | 32 | 33.4 | 34.5 | 35.5 | 36.5 | 34.3 |
| 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 | 12.6 | 12.6 | 12.6 | 12.6 | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 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) | 11.5 | 6.1 | 11.3 | 9.9 | 6.8 | 10.2 | 10.7 | 6.6 | 8.7 | 11.3 | 11.4 | 6.6 | 11.3 | 10.7 | 11.3 | 11.3 | 11.2 | 11.3 | 11.2 | 11.1 | 10.5 | 7.2 | 3.3 | 8 | 10.7 | 9.3 | 10.7 | 10.5 | 10.7 | 6.6 |
| Precipitation (mm) | 9.4 | 9.9 | 0 | 6.5 | 0 | 0.3 | 3.4 | 13.9 | 3.2 | 0.5 | 1.5 | 6.9 | 0.7 | 0.2 | 0.3 | 0.9 | 1.1 | 3.6 | 1.3 | 0.6 | 6.5 | 4.2 | 14 | 12.6 | 1 | 1.3 | 0 | 0 | 0.1 | 12.8 |
| Precipitation hours | 10 | 10 | 0 | 6 | 0 | 2 | 3 | 14 | 6 | 4 | 4 | 7 | 3 | 2 | 3 | 4 | 4 | 3 | 4 | 4 | 6 | 13 | 16 | 13 | 2 | 2 | 0 | 0 | 1 | 3 |
| Wind speed (m/s) | 10.5 | 12 | 13.6 | 18.3 | 6.6 | 15.9 | 23.7 | 28.7 | 28 | 9.8 | 12.1 | 13.8 | 11.3 | 21 | 24.1 | 14.6 | 23.9 | 12 | 17.6 | 18 | 25 | 30 | 25.4 | 25.8 | 17.9 | 10.3 | 7.4 | 6.5 | 6.9 | 23.4 |
In September 2023, the highest daytime temperature in Janakpur was 35°C.
While the minimum temperature at night dropped to 23.4°C.
The average nighttime and daytime temperatures during September in Janakpur are 25.5°C and 32.5°C respectively.
The precipitation sum in September is about 117 mm.