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Fort St. John weather in August 2026
Expect daytime maximum temperatures of 70°F in Fort St. John, British Columbia in August based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 2.4 inches of rainfall in the month.
- 70°F max day temperature
70 - 9 hours of sunshine per day
- 11 days with some rainfall
11 - 46°F min night temperature
46 - 15 hours of daylight per day
15 - No heat & humidity
0 - 2.4 inches of monthly rainfall
2.4 - 5 (Moderate) UV index
5
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Recommended for British Columbia
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)
More about Canada
How hot is it in Fort St. John in August?
Daytime temperatures usually reach 72°F in Fort St. John in August, falling to 55°F at night.
How sunny is it in Fort St. John in August?
There are normally 8 hours of bright sunshine each day in Fort St. John in August - that's 57% of daylight hours.
How warm is the sea around Fort St. John in August?
The average sea temperature around Fort St. John in August is 63°F.
Does it rain in Fort St. John in August?
There are usually 8 days with some rain in Fort St. John in August and the average monthly rainfall is 2.0 inches.
Fort St. John August sunrise & sunset times
Browse the sunrise and sunset times for Fort St. John in August 2026. Select a month to view Fort St. John sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Saturday, 1st August 2026 | 05:07 | 21:12 |
| Sunday, 16th August 2026 | 05:36 | 20:38 |
| Monday, 31st August 2026 | 06:06 | 20:00 |
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