Kathmandu weather
in September
“Mild and bright — an underrated time to visit.”
Roughly 29 rainy days across the month, on average.
In september, Kathmandu settles into its kind, mild rhythm. The city keeps a different pulse than in summer or midwinter, and travellers who arrive with the right expectations are rewarded.
Days average around 26°C (78°F), cooling to 19°C after sunset. Expect meaningful rain — some 29 wet days across the month. Pack accordingly and let the weather choose your afternoons. Long days of sunshine reward early starts.
These figures are climatological averages, drawn from a decade of daily records via the Open-Meteo Archive — not a forecast. But they are honest, and they are the sort of thing a good travel guide ought to tell you before you book the flight.
What to pack for Kathmandu in September
- •A light layer for cool mornings and evenings
- •A compact travel umbrella — one you'll actually carry
- •Reef-safe sunscreen and polarised sunglasses
- •Comfortable, broken-in walking shoes
- •A small daypack that won't look like a tourist beacon
What to pack for Kathmandu in September
- →Breathable travel pantsAmazon · shop this
- →Packable rain jacketAmazon · shop this
- →Compact travel umbrellaAmazon · shop this
- →Waterproof dry bagAmazon · shop this
- →Reef-safe sunscreen SPF 50Amazon · shop this
- →Polarized sunglassesAmazon · shop this
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Where to stay in Kathmandu
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Kathmandu in September — FAQ
Q01Is September a good time to visit Kathmandu?
Is September a good time to visit Kathmandu?
It is a challenging month — you may want to consider another time of year. In September, Kathmandu averages a high of 26°C (78°F) and a low of 19°C (66°F), with 432mm of rainfall across roughly 29 rainy days.
Q02What is the average temperature in Kathmandu in September?
What is the average temperature in Kathmandu in September?
The average high temperature in Kathmandu during September is 26°C (78°F), with an average low of 19°C (66°F). These figures are averaged from ten years of daily records (2015–2024, Open-Meteo Archive).
Q03How many rainy days does Kathmandu have in September?
How many rainy days does Kathmandu have in September?
Kathmandu averages approximately 29 rainy days in September, with a total monthly rainfall of about 432mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What should I pack for Kathmandu in September?
What should I pack for Kathmandu in September?
For Kathmandu in September, pack layered clothing for changing temperatures, a compact umbrella or waterproof jacket, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on the ten-year weather averages for this specific month.
Q05How crowded is Kathmandu in September?
How crowded is Kathmandu in September?
Tourist crowds in Kathmandu during September are typically moderate — shoulder season, a sweet spot between crowds and weather. Consider this when planning accommodation — prices track crowd levels closely.