Kathmandu weather in September
Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average
Kathmandu September weather at a glance
In September, Kathmandu averages 21.9°C, with typical highs of 26.6°C and lows of 18.7°C. The historical average is 29 wet days and 89% humidity.
Kathmandu September temperature & humidity
Kathmandu September rain & wet days
Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.
What to wear in Kathmandu in September
Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 29 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
- DaytimeBreathable short sleeves, hat and sunscreen · average high 26.6°C
- Morning & eveningLight layer for air-conditioned rooms · average low 18.7°C
- FootwearComfortable walking shoes; quick-dry footwear for rainy days.
Packing essentials
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Kathmandu September sunrise & sunset times
2026 September · Local time (Asia/Kathmandu)
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 2026-09-01 | 05:42 | 18:25 | 12h 42m |
| 2026-09-15 | 05:49 | 18:09 | 12h 20m |
| 2026-09-30 | 05:56 | 17:51 | 11h 56m |
For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.
Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup
Kathmandu travel updates
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Today’s weather and forecast
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Forecast · Windy. Monthly averages are in the Temperature section.
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Best months to visit Kathmandu
Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.
September weather by year
Daily weather in 2025
Daily high and low temperatures; blue labels show precipitation
Frequently asked questions
What is Kathmandu weather like in September?
In September, Kathmandu averages 21.9°C, with typical highs of 26.6°C and lows of 18.7°C. The historical average is 29 wet days and 89% humidity. Our weather-comfort rating for this month is challenging.
Does it rain a lot in Kathmandu in September?
There are about 29 wet days in September. Pack a rain jacket and water-resistant shoes.
What should I wear in Kathmandu in September?
Choose breathable summer clothes and pack sun protection. Rain is frequent at roughly 29 days in the month; pack a rain jacket and water-resistant shoes. High humidity makes quick-dry clothing and a spare top especially useful.
What are the best months to visit Kathmandu?
Recent weather data rates January, February, March, April among the more comfortable months.
Where can I check Kathmandu weather in September in real time?
Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.
What time are sunrise and sunset in Kathmandu in September?
On 2026-09-15, calculated sunrise is 05:49 and sunset is 18:09 in local time (Asia/Kathmandu). Times vary by date and terrain.
Kathmandu weather by month
More India, Middle East & Central Asia destinations in September
Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations