Kathmandu in september: average Weather, Temperature and Climate
Weather in Kathmandu in september 2025
The weather in Kathmandu in september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
very bad weather UV index: 6
Weather at 6am
68°F
Moderate rain at times
41% of time
31%
17%
12%
Weather at 12pm
77°F
Moderate rain at times
49% of time
43%
8%
2%
Weather at 6pm
68°F
Moderate rain at times
57% of time
30%
7%
4%
Weather at 3am
61°F
43%
24%
20%
10%
Evolution of daily average temperature and precipitation in Kathmandu in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Kathmandu in september.
The climate of Kathmandu in september is very bad
The weather in september in Kathmandu is wet (with 22.4in of rainfall over 26 days). The weather is better from the previous month since in august it receives an average of 39.2in of precipitation over 30 days.
The climate nice there this month. The high seasonal norm is 79°F. The seasonal minimum is 68°F. Thus, the mean temperature average in september in Kathmandu is 74°F. Note that these seasonal averages are in contrast with those observed in Kathmandu in the month of september with a maximum record of 86°F in 2013 and a minimum record of 58°F in 2016.
On average, in Kathmandu, the days of september last 12:19. Sunrise is at 05:49 and sunset is at 18:08.
Kathmandu: another month?
If you can push back the dates of your trip, we advise you to go in october to Kathmandu. more information
September: another location in Nepal?
If you want to go to Nepal in september, there are destinations with better weather than Kathmandu:
In september, Biratnagar, Lumbini, Nepalganj and Rudrapur have good weather.
Finally, Annapurna, Pokhara, Dhangadhi, Dhankuta, Janakpur and Bandipur have a tolerable climate, but better than Kathmandu.
Seasonal average climate and temperature of Kathmandu in september
Check below seasonal norms These datas are compiled from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 74°F | ||||
| Highest temperature | 79°F | ||||
| Lowest temperature | 68°F | ||||
| Highest record temperature | 86°F (2013) | ||||
| Lowest record temperature | 58°F (2016) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 9km/h | ||||
| Wind temperature | 68°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 22.4in | ||||
| Number of days with rainfall | 26 day(s) (86%) | ||||
| Record daily rainfall | 4in (2020) | ||||
| Other climate data | |||||
| Humidity | 90% | ||||
| Visibility | 8.19km | ||||
| Cloud cover | 41% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:49 | ||||
| Time of sunset | 18:08 | ||||
| Length of day | 12:19 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Kathmandu in september 2024:
68°F to 77°F
65°F to 79°F
67°F to 79°F
67°F to 77°F
67°F to 77°F
65°F to 76°F
65°F to 79°F
67°F to 81°F
67°F to 77°F
70°F to 79°F
67°F to 79°F
68°F to 79°F
68°F to 79°F
67°F to 74°F
65°F to 76°F
63°F to 72°F
67°F to 77°F
65°F to 79°F
67°F to 81°F
68°F to 83°F
70°F to 83°F
70°F to 85°F
70°F to 86°F
70°F to 85°F
68°F to 79°F
67°F to 74°F
65°F to 67°F
61°F to 63°F
63°F to 74°F
63°F to 77°F
Map: other cities in Nepal in september
Cities near Kathmandu:
| Bodnath in september | bad weather |
| Patan in september | very bad weather |
| Bhaktapur in september | very bad weather |
| Nagarkot in september | very bad weather |
| Banepa in september | very bad weather |
| Langtang National Park in september | bad weather |
| Bharatpur in september | very bad weather |
| Chitwan National Park in september | tolerable weather |
| Bandipur in september | tolerable weather |
| Janakpur in september | tolerable weather |
| Lukla in september | very bad weather |
| Pokhara in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Kathmandu
perfect weather
good
tolerable
bad
very bad
Weather data for Kathmandu in september:
Weather data for Kathmandu for september are derived from an average of the weather forecast since 2009 in Kathmandu. There is a margin of error and these forecasts are to be considered as general information only. The weather in Kathmandu can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Kathmandu.