Kathmandu · AutumnMonth summary
Kathmandu weather in September
⚠️ Fair
🌡️ Temperature min / max
19°C – 26°C
🌧 Rainy days
95% of days
☀️ Sunshine
9.6h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
6.4/10
📅 📅 Best month
November (8.0/10)
Quick decision
Should you visit Kathmandu in September?
⚠️ Fair
✅ Yes if: you're willing to accept showers in exchange for lower prices and fewer tourists.
❌ No if: you're planning 100% outdoor activities — rain is frequent.
Our take: September is an average time for Kathmandu. November (8.0/10) is clearly preferable.
By trip type
Kathmandu in September by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ⚠️ Possible
- 🏖️ Beach / swimming : — No sea access
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in September
🎯 Trails walkable but wet — bring proper footwear and plan sheltered breaks Autumn marks the end of peak season in Kathmandu. Temperatures drop (26°C) and rain returns (95% of days). With 95% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. November (8.0/10) is significantly better if possible.
Browse by month
All months for Kathmandu
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 5°C | 17°C | 13% | 0.7 | 9.2h | 7.2/10 |
| 🌤️ February | 7°C | 19°C | 21% | 1.0 | 10.1h | 7.4/10 |
| 🌤️ March | 10°C | 22°C | 35% | 1.8 | 11.0h | 7.7/10 |
| 🌤️ April | 14°C | 25°C | 42% | 2.6 | 11.3h | 7.8/10 |
| ⛅ May | 16°C | 26°C | 78% | 7.8 | 11.6h | 7.1/10 |
| 🌦️ June | 19°C | 26°C | 90% | 15.3 | 10.9h | 7.0/10 |
| 🌧️ July | 20°C | 26°C | 100% | 28.9 | 8.0h | 5.8/10 |
| 🌧️ August | 20°C | 27°C | 100% | 23.4 | 8.6h | 6.4/10 |
| 🌧️ September | 19°C | 26°C | 95% | 15.0 | 9.6h | 6.4/10 |
| 🌤️ October | 15°C | 24°C | 43% | 3.1 | 10.0h | 7.5/10 |
| 🌤️ November | 10°C | 21°C | 9% | 0.3 | 9.9h | 8.0/10 |
| 🌤️ December | 6°C | 18°C | 6% | 0.2 | 9.3h | 7.4/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Kathmandu averages 26°C, 95% rainy days and 9.6h of sunshine per day. Overall weather score: 6.4/10.
See methodology →
Comparison
September vs November (best month)
The best month is November (score 8.0/10). Difference:
- 🌡️ Max temperature : -5°C
- 🌧 Rainy days : -86%
- ☀️ Sunshine : +0.3h/day
FAQ
FAQ — Kathmandu in September
Is September a good time to visit Kathmandu?
September is an acceptable time for Kathmandu (score 6.4/10). Conditions are decent but not optimal — consider November (8.0/10) if possible.
Does it rain a lot in Kathmandu in September?
Yes, 95% of days see rain in September. Plan some indoor activities as backup.
Accommodation
Find a place to stay in Kathmandu
Find places to stay in Kathmandu in September
Search on Hotels.com
Activities & tours
Activities and tours in Kathmandu
Guided tours, skip-the-line tickets and local experiences.
Browse activities on GetYourGuide
Flights
Find a flight to Kathmandu
Compare flights from all airlines.
Search flights
←
Explore also
Similar destinations in September
Hong Kong🌍 Top destinations
Other top destinations in September
Puerto Vallarta
Banjul
TrinidadWeather rankings
Compare destinations by weather
Best in EuropeGuides & comparisons