Fort St. John in september: average Weather, Temperature and Climate
Weather in Fort St. John in september 2025
The weather in Fort St. John in the month of september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather 44.7cm
Weather at 6am
45°F
Clear/Sunny
40% of time
28%
12%
8%
Weather at 12pm
59°F
Clear/Sunny
40% of time
32%
15%
5%
Weather at 6pm
50°F
Clear/Sunny
43% of time
30%
14%
7%
Weather at 3am
43°F
38%
23%
14%
11%
Evolution of daily average temperature and precipitation in Fort St. John in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Fort St. John in september.
The climate of Fort St. John in september is tolerable
The climate in september in Fort St. John is relatively dry (with 2.8in of rainfall over 4 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 2.9in of precipitation over 5 days.
The climate is quite fresh in that area the month of september, but it is bearable when dressing hot. Temperatures are up to 61°F. On average, the recorded minimum temperature is 45°F. Thus, the mean temperature average in september in Fort St. John is 54°F. Note that seasonal normals in contrast with those observed in Fort St. John in the month of september with a maximum record of 86°F in 2013 and a minimum record of 23°F in 2018. You can expect to have about 10 days with temperatures over 65°F, or 33% of the month.
On this month of september, day length in Fort St. John is generally 12:45. The sun rises at 06:35 and sunset is at 19:20.
With a correct climate, this month is okay (but not good) to go there in Canada.
Fort St. John: another month?
If you can push the dates of your trip to Fort St. John forward, the month of october has a better weather forecast than september. more information
September: another location in Canada?
If you want to go to Canada in september, there are destinations with better weather than Fort St. John:
In september, Ottawa, Halifax, Quebec City, Thunder Bay, Toronto and Vancouver have good weather.
Seasonal average climate and temperature of Fort St. John in september
Check below seasonal norms These datas are generated from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 54°F | ||||
| Highest temperature | 61°F | ||||
| Lowest temperature | 45°F | ||||
| Highest record temperature | 86°F (2013) | ||||
| Lowest record temperature | 23°F (2018) | ||||
| Number of days at +86°F | 0 day(s) (0%) | ||||
| Number of days at +65°F | 10 day(s) (33%) | ||||
| Number of days at -32°F | 2 day(s) (7%) | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 43°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.8in | ||||
| Number of days with rainfall | 4 day(s) (13%) | ||||
| Record daily rainfall | 2.4in (2015) | ||||
| Snowfall | 44.7cm | ||||
| Other climate data | |||||
| Humidity | 82% | ||||
| Visibility | 9.03km | ||||
| Cloud cover | 36% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:35 | ||||
| Time of sunset | 19:20 | ||||
| Length of day | 12:45 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Fort St. John in september 2024:
54°F to 83°F
56°F to 70°F
49°F to 63°F
47°F to 68°F
49°F to 83°F
58°F to 81°F
54°F to 79°F
58°F to 68°F
47°F to 50°F
41°F to 63°F
43°F to 63°F
45°F to 67°F
49°F to 68°F
49°F to 58°F
49°F to 65°F
49°F to 61°F
54°F to 63°F
50°F to 59°F
43°F to 56°F
41°F to 56°F
43°F to 58°F
50°F to 61°F
50°F to 63°F
52°F to 61°F
47°F to 63°F
41°F to 52°F
41°F to 47°F
38°F to 49°F
36°F to 47°F
34°F to 45°F
Map: other cities in Canada in september
Cities near Fort St. John:
| Grande Prairie in september | tolerable weather |
| Prince George in september | tolerable weather |
| Fort Nelson in september | tolerable weather |
| Quesnel in september | tolerable weather |
| Jasper National Park in september | very bad weather |
| Williams Lake in september | tolerable weather |
| Terrace in september | tolerable weather |
| Edmonton in september | tolerable weather |
| Fort McMurray in september | tolerable weather |
| Glacier National Park in september | tolerable weather |
| Lake Louise in september | very bad weather |
| Banff National Park in september | very bad weather |
Click over cities on the map for information about the weather in september.
Fort St. John
perfect weather
good
tolerable
bad
very bad
Weather data for Fort St. John in september:
Weather data for Fort St. John for september are derived from an average of the weather forecast since 2009 in Fort St. John. There is a margin of error and these forecasts are to be considered as general information only. The weather in Fort St. John can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Fort St. John.