Fort St. John weather in August 2025

Expect 70°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Fort St. John in August. Check more long-term weather averages for Fort St. John in August before you book your next holiday to British Columbia in 2025/2026.

  • 70°F maximum daytime temperature in August in Fort St. John70
    70°F max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in August in Fort St. John11
    11 days with some rainfall
  • 46°F minimum night-time temperature in August in Fort St. John46
    46°F min night temperature
  • 15 hours of daylight per day in August in Fort St. John15
    15 hours of daylight per day
  • No heat & humidity in August in Fort St. John0
    No heat & humidity
  • 2.4 inches monthly rainfall in August in Fort St. John2.4
    2.4 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Fort St. John5
    5 (Moderate) UV index

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The August weather guide for British Columbia (Fort St. John) 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)  |  Imperial (°F)

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How hot is it in Fort St. John in August?

Daytime temperatures usually reach 70°F in Fort St. John in August, falling to 46°F at night.

How sunny is it in Fort St. John in August?

There are normally 9 hours of bright sunshine each day in Fort St. John in August - that's 57% of daylight hours.

Does it rain in Fort St. John in August?

There are usually 11 days with some rain in Fort St. John in August and the average monthly rainfall is 2.4 inches.

Fort St. John August sunrise & sunset times

Browse the sunrise and sunset times for Fort St. John in August 2025. Select a month to view Fort St. John sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:07 21:11
Saturday, 16th August 2025 05:36 20:37
Sunday, 31st August 2025 06:06 20:00

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