The month in detail
What to expect in September
Autumn in Kathmandu is often underrated: 26°C, golden light and declining crowds. An interesting window. With 49% of rainy days, always have indoor alternatives planned. Not the best window, but acceptable if dates are constrained. October (8.4/10) is significantly better if possible.
September ranks 9 out of 12 months in Kathmandu. Compared to August: 24 pts fewer rainy days.
This month's conditions
What it's like in September
UV index
7 · high
sunscreen and hat advised
Feels like
muggy at times
20°
Daylight
12.2h of daylight
Air quality
good
AQI 38
Compare
Is September the right month?
The best month in Kathmandu is October (8.4/10), 1.0 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Kathmandu
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Kathmandu
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · Nepal
🗣️LanguageNépalais
💶CurrencyRoupie népalaise (Rs)
🚗DrivingLeft-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘVery cheap · 1/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthAugust · 27°C
❄️Coolest monthJanuary · 17°C
🌧️Rainiest month ⓘJuly · 75%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Kathmandu ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
NepalTemperate climate with a 8.4 → 2.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
27.72°N · 85.32°E
Questions
Frequently asked questions
What is the best time to visit Kathmandu?
October is the best month with 24.0°C highs, 15.0°C lows, 7.5h of sunshine and 12.0% rainy days. The months of October & November offer comparable conditions.
How many hours of sunshine does Kathmandu get in October?
Kathmandu averages 7.5 sunshine hours per day in October. It is the sunniest month with a climate score of 8.0/10.
What is the rainiest month in Kathmandu?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Kathmandu in October?
In October, overnight lows reach 15.0°C, while afternoon highs average 24.0°C.
Is Kathmandu good in winter?
In winter (December-February), Kathmandu scores 7.3/10 on average — Decent period conditions for cultural visits.. The best month overall remains October with a score of 8.0/10.
When should you avoid Kathmandu?
July is the most difficult month to visit Kathmandu, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Kathmandu in September?
The average UV index reaches 7 in September in Kathmandu (high), with about 12.2h of daylight. Sunscreen and hat advised.