Chile weather in September 2025

Expect daytime maximum temperatures of 16°C in Chile in September based on long-term weather averages. There are 6 hours of sunshine per day on average.

  • 16°C maximum daytime temperature in September in Chile (Santiago)16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 4 days with some rainfall in September in Chile (Santiago)4
    4 days with some rainfall
  • 5°C minimum night-time temperature in September in Chile (Santiago)5
    5°C min night temperature
  • 12 hours of daylight per day in September in Chile (Santiago)12
    12 hours of daylight per day
  • No heat & humidity in September in Chile (Santiago)0
    No heat & humidity
  • 32 mm monthly rainfall in September in Chile (Santiago)32
    32 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Chile (Santiago)6
    6 (High) UV index

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The September weather guide for Chile (Santiago) 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.

Top Chile destinations

Below are average maximum temperatures at popular countries, regions and places in Chile in September. Select a holiday destination to see more weather parameters.

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

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More about Chile

How warm is it in Chile in September?

Daytime temperatures usually reach 16°C in Santiago, Chile in September, falling to 5°C at night.

How sunny is it in Chile in September?

There are normally 6 hours of bright sunshine each day in Santiago, Chile in September - that's 49% of daylight hours.

Does it rain in Chile in September?

There are usually 4 days with some rain in Santiago, Chile in September and the average monthly rainfall is 32mm.

Chile September sunrise & sunset times

Browse the sunrise and sunset times for Chile in September 2025. Select a month to view Chile sunrise and sunset times for the next 12 months. The Chile sunrise and sunset times shown below are for Santiago.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 07:00 18:25
Monday, 15th September 2025 06:41 18:34
Tuesday, 30th September 2025 06:20 18:44

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