Weather in Nepal for September 2027
In general, the average temperature in Nepal at the beginning of September is 25.8 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 26.1 °C by the end of September.
Nepal experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 402.4 mm.
Is September a good time to visit Nepal? check out the best time to travel to Nepal page.
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Nepal Weather September
What’s the Weather Like in Nepal This September?
Temperatures trend during September in Nepal
September weather in Nepal day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Heavy rain | 26° /19° | 31.2 mm | 5 | |
| 2 Sept. |  Moderate rain | 24° /19° | 21.7 mm | 5 | |
| 3 Sept. | Moderate rain | 26° /19° | 13.7 mm | 5 | |
| 4 Sept. | Moderate rain | 26° /20° | 16.2 mm | 5 | |
| 5 Sept. | Moderate rain | 26° /19° | 12.6 mm | 6 | |
| 6 Sept. | Moderate rain | 26° /19° | 13 mm | 5 | |
| 7 Sept. | Moderate rain | 27° /19° | 14.8 mm | 5 | |
| 8 Sept. |  Light rain | 27° /19° | 9.8 mm | 5 | |
| 9 Sept. | Moderate rain | 27° /19° | 15.5 mm | 6 | |
| 10 Sept. | Moderate rain | 26° /19° | 11 mm | 5 | |
| 11 Sept. | Moderate rain | 28° /20° | 10.2 mm | 5 | |
| 12 Sept. | Light rain | 27° /19° | 8.4 mm | 5 | |
| 13 Sept. | Moderate rain | 27° /19° | 15.1 mm | 6 | |
| 14 Sept. | Moderate rain | 25° /19° | 10.6 mm | 5 | |
| 15 Sept. | Moderate rain | 26° /19° | 14.9 mm | 5 | |
| 16 Sept. | Moderate rain | 25° /19° | 11 mm | 5 | |
| 17 Sept. | Light rain | 26° /19° | 8.1 mm | 6 | |
| 18 Sept. | Light rain | 27° /19° | 2.6 mm | 6 | |
| 19 Sept. | Light rain | 28° /18° | 3 mm | 6 | |
| 20 Sept. | Light rain | 28° /19° | 6.6 mm | 6 | |
| 21 Sept. | Moderate rain | 28° /19° | 10.6 mm | 7 | |
| 22 Sept. | Light rain | 28° /19° | 7.6 mm | 7 | |
| 23 Sept. | Moderate rain | 28° /20° | 10.1 mm | 6 | |
| 24 Sept. | Light rain | 27° /19° | 8.1 mm | 5 | |
| 25 Sept. | Heavy rain | 26° /18° | 29.7 mm | 5 | |
| 26 Sept. | Moderate rain | 25° /17° | 24.9 mm | 5 | |
| 27 Sept. | Heavy rain | 26° /18° | 34.1 mm | 5 | |
| 28 Sept. | Moderate rain | 25° /17° | 17.8 mm | 7 | |
| 29 Sept. | Light rain | 27° /18° | 5.5 mm | 7 | |
| 30 Sept. | Light rain | 28° /18° | 3.8 mm | 7 | |
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Guide for Nepal in September
In September, Nepal experiences a transition from the monsoon season to the post-monsoon period, resulting in varied weather conditions throughout the month. At the beginning of September, the weather in Nepal is characterized by lingering monsoon showers and relatively high humidity.
The southern regions, including the Terai plains, may still receive significant rainfall, while the central and northern areas, such as Kathmandu and Pokhara, begin to witness a decrease in precipitation.
Temperatures during this time typically range from 20° to 28°, with cooler evenings providing a pleasant respite from the daytime heat.
By the end of September, Nepal undergoes a noticeable shift in weather patterns as the monsoon retreats further. The country experiences clearer skies and reduced rainfall, particularly in the central and northern regions.
Daytime temperatures tend to hover around 22° to 30°, offering comfortable conditions for outdoor activities and sightseeing. However, it's essential to note that weather patterns can vary across different regions of Nepal due to its diverse topography.
In the mountainous areas, such as the Everest region, temperatures may be significantly cooler, and trekkers should be prepared for potential fluctuations in weather.