Rainbow Lake weather in September 2025

Expect 14°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Rainbow Lake in September. Check more long-term weather averages for Rainbow Lake in September before you book your next holiday to Alberta in 2025/2026.

  • 14°C maximum daytime temperature in September in Rainbow Lake14
    14°C max day temperature
  • 5 hours of sunshine per day
  • 11 days with some rainfall in September in Rainbow Lake11
    11 days with some rainfall
  • 1°C minimum night-time temperature in September in Rainbow Lake1
    1°C min night temperature
  • 13 hours of daylight per day in September in Rainbow Lake13
    13 hours of daylight per day
  • No heat & humidity in September in Rainbow Lake0
    No heat & humidity
  • 34 mm monthly rainfall in September in Rainbow Lake34
    34 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Rainbow Lake3
    3 (Moderate) UV index

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The September weather guide for Alberta (Rainbow Lake) 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 warm is it in Rainbow Lake in September?

Daytime temperatures usually reach 14°C in Rainbow Lake in September, falling to 1°C at night.

How sunny is it in Rainbow Lake in September?

There are normally 5 hours of bright sunshine each day in Rainbow Lake in September - that's 40% of daylight hours.

Does it rain in Rainbow Lake in September?

There are usually 11 days with some rain in Rainbow Lake in September and the average monthly rainfall is 34mm.

Rainbow Lake September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:57 19:56
Monday, 15th September 2025 06:28 19:16
Tuesday, 30th September 2025 07:01 18:33

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