Nan weather in September 2025

Expect 32°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Nan in September. Check more long-term weather averages for Nan in September before you book your next holiday to Thailand in 2025/2026.

  • 32°C maximum daytime temperature in September in Nan32
    32°C max day temperature
  • 6 hours of sunshine per day
  • 18 days with some rainfall in September in Nan18
    18 days with some rainfall
  • 23°C minimum night-time temperature in September in Nan23
    23°C min night temperature
  • 12 hours of daylight per day in September in Nan12
    12 hours of daylight per day
  • Very high heat & humidity in September in NanVH
    Very High heat & humidity
  • 195 mm monthly rainfall in September in Nan195
    195 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Nan11
    11+ (Extreme) UV index

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The September weather guide for Thailand (Nan) 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 Nan in September?

Daytime temperatures usually reach 32°C in Nan in September with very high heat and humidity, falling to 23°C at night.

How sunny is it in Nan in September?

There are normally 6 hours of bright sunshine each day in Nan in September - that's 47% of daylight hours.

Does it rain in Nan in September?

There are usually 18 days with some rain in Nan in September and the average monthly rainfall is 195mm.

What is the chance of a typhoon in Nan in September?

On average less than 1 day in September in Nan is likely to be affected by the passage of one or more tropical storms.

Nan September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:02 18:32
Monday, 15th September 2025 06:05 18:19
Tuesday, 30th September 2025 06:07 18:06

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