2026 Climate Averages

Weather: Kathmandu — September

It's a rainy period, but great for indoor activities, museums, and lower prices.

☔ Climate Overview

September is a wet time to visit Kathmandu. Warm weather with highs of 27°C—great for outdoor activities. This is one of the wettest months—waterproof gear is essential. Being off-peak, you'll find better deals and fewer crowds.

5.9
GoTripzi Score Good

Based on weather comfort, crowds, prices, and activity options

Avg High

27°C

Avg Low

21°C

Rainy days

29days

Daylight

12.3h

Feels like 32°C / 24°C — humidity makes it feel warmer

Rainfall

447mm

Sunshine

7.2h/day

Humidity

87%

Very Humid
Sun Strength

5.4

High
Wind

5 km/h (gusts 24)

Is September a good time to visit Kathmandu?

It's a rainy period, but great for indoor activities, museums, and lower prices.

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Travel Context

  • Crowds
    Quiet
  • Travel Costs Shoulder Rates

Daylight

Sunrise

05:50

Sunset

18:10

12.3h daylight

Visiting Kathmandu in September: Pros & Cons

Pros

  • Comfortable temperatures for sightseeing
  • Fewer crowds and better hotel deals

Cons

  • Frequent rain may disrupt outdoor activities

Things to Do in September

Events & Festivals

🎭
Indra Jatra
September Cultural

Recommended for This Weather

🏛️ Museums & galleries
🍳 Cooking classes & food tours
🎭 Cultural tours & local experiences

Kathmandu Weather by Month

Month Avg High Avg Low Rain Sunshine Humidity UV Index Crowds Condition
Jan 17°C 7°C 7d (41mm) 9h
78% Humid
5.4 High
Good
Feb 19°C 9°C 7d (44mm) 9.8h
74% Humid
6.5 High
Good
Mar 23°C 12°C 12d (59mm) 10.6h
67% Humid
8 Very High
Excellent
Apr 26°C 15°C 11d (76mm) 11.2h
61% Moderate
9.2 Very High
Excellent
May 26°C 18°C 24d (272mm) 10.7h
79% Humid
8 Very High
Excellent
Jun 27°C 21°C 28d (541mm) 8.3h
87% Very Humid
6.4 High
Wet
Jul 27°C 22°C 31d (764mm) 5.8h
90% Very Humid
5.2 High
Wet
Aug 27°C 22°C 31d (618mm) 6.2h
89% Very Humid
5.1 High
Wet
Sep Current 27°C 21°C 29d (447mm) 7.2h
87% Very Humid
5.4 High
Wet
Oct 26°C 17°C 14d (196mm) 8.9h
81% Very Humid
6 High
Excellent
Nov 22°C 12°C 6d (23mm) 9.7h
80% Very Humid
5.7 High
Excellent
Dec 19°C 9°C 3d (18mm) 9.2h
78% Humid
5.3 High
Good

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4.3

Where to Stay

See hotels, apartments & rentals around Kathmandu – live prices from Booking.com, Expedia, Vrbo and more

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Kathmandu

Himalayan hub for treks with Swayambhunath Stupa and Kathmandu Durbar Square, stupas and Newari courtyards.

View Full Destination Guide

What to Pack for September

Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. A waterproof jacket and shoes are non-negotiable — showers are frequent.

Moderate Quiet

🎒Personalized Packing List

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📋Essentials
👕Clothing
👟Footwear
🎒Accessories
🧴Toiletries & Health

Planning a trip to Kathmandu?

💰 Off-peak — great deals available now

Frequently Asked Questions

Is September a good time to visit Kathmandu?
September is typically wet for visiting Kathmandu, with average highs of 27°C and around 29 rainy days. Plan your activities accordingly—outdoor sightseeing is best on dry days, while rainy days are perfect for museums and indoor attractions.
Does it get cold at night in Kathmandu in September?
Nights stay pleasantly warm in Kathmandu during September, around 21°C. Light evening wear is sufficient, and outdoor dining is very comfortable. Many locals and visitors enjoy late-night walks and outdoor activities after sunset.
What should I pack for Kathmandu in September?
With highs of 27°C and lows of 21°C in September, we recommend: Compact umbrella, Waterproof jacket/shell, Water-resistant shoes, Lightweight breathable clothes. Layering is key as temperatures can vary between air-conditioned interiors and outdoors. Comfortable walking shoes are essential for cobblestone streets.
Does it rain a lot in Kathmandu in September?
Kathmandu typically sees around 29 rainy days in September. Rain is usually in the form of brief showers rather than all-day downpours, so a compact umbrella is sufficient. Mornings tend to be drier, making them ideal for outdoor sightseeing.
How many hours of daylight are there in Kathmandu in September?
In September, Kathmandu gets approximately 12.3 hours of daylight per day. This affects how much sightseeing you can fit in—longer days mean more time for outdoor activities, while shorter days are perfect for cozy museum visits and early dinners.
Is September peak season in Kathmandu?
No, September is not peak season in Kathmandu. Expect better value on accommodation, shorter queues at attractions, and fewer tourists at popular spots. This is an excellent time to experience the city like a local and enjoy a more authentic atmosphere.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Solar calculations: SunCalc (timezone: Asia/Kathmandu)

Last Updated: February 2026

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