Gangtok weather in September 2025

Expect 22°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Gangtok in September. Check more long-term weather averages for Gangtok in September before you book your next holiday to India in 2025/2026.

  • 22°C maximum daytime temperature in September in Gangtok22
    22°C max day temperature
  • 5 hours of sunshine per day
  • 12 days with some rainfall in September in Gangtok12
    12 days with some rainfall
  • 14°C minimum night-time temperature in September in Gangtok14
    14°C min night temperature
  • 12 hours of daylight per day in September in Gangtok12
    12 hours of daylight per day
  • No heat & humidity in September in Gangtok0
    No heat & humidity
  • 389 mm monthly rainfall in September in Gangtok389
    389 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Gangtok11
    11+ (Extreme) UV index

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The September weather guide for India (Gangtok) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Gangtok in September?

Daytime temperatures usually reach 22°C in Gangtok in September, falling to 14°C at night.

How sunny is it in Gangtok in September?

There are normally 5 hours of bright sunshine each day in Gangtok in September - that's 39% of daylight hours.

Does it rain in Gangtok in September?

There are usually 12 days with some rain in Gangtok in September and the average monthly rainfall is 389mm.

Gangtok September sunrise & sunset times

Browse the sunrise and sunset times for Gangtok in September 2025. Select a month to view Gangtok sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:15 17:56
Monday, 15th September 2025 05:21 17:40
Tuesday, 30th September 2025 05:28 17:23

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