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Weather in Fort St. John for September 2027

Your guide to Fort St. John weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Fort St. John at the beginning of September is 21.5 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.1 °C by the end of September.

    • Rain 🌧️

  • With an average of 5 rainy days, Fort St. John experiences minimal rainfall in September.

    • More

  • Is September a good time to visit Fort St. John? check out the best time to travel to Fort St. John page.

  • ✨ Is September a good time to visit Fort St. John? – Ask the AI Weatherman

Average dry days
25
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
61 %
Avg humidity

Fort St. John Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
25°
2
Patchy rain possible
22°
3
Patchy rain possible
19°
4
Mist
18°
5
Sunny
21°
6
Sunny
23°
7
Sunny
23°
8
Sunny
22°
9
Patchy rain possible
18°
10
Light rain
19°
11
Overcast
18°
12
Overcast
19°
13
Partly cloudy
19°
14
Sunny
17°
15
Overcast
18°
16
Overcast
19°
17
Patchy rain possible
20°
18
Sunny
16°
19
Overcast
15°
20
Overcast
17°
21
Partly cloudy
17°
22
Overcast
18°
23
Partly cloudy
16°
24
Patchy rain possible
14°
25
Light rain
14°
26
Patchy rain possible
13°
27
Patchy rain possible
12°
28
Light rain
12°
29
Light rain
10°
30
Thundery outbreaks possible
11°

Temperatures trend during September in Fort St. John

See the weather trend as well as the moving average line

September weather in Fort St. John day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 25° /12° 0 mm 4.6
2 Sept. Patchy rain possible
Patchy rain possible
 22° /11° 2.1 mm 4.5
3 Sept. Patchy rain possible
Patchy rain possible
 19° /8° 0.9 mm 4
4 Sept. Mist
Mist
 18° /6° 0 mm 4
5 Sept. Sunny
Sunny
 21° /6° 0.1 mm 4.3
6 Sept. Sunny
Sunny
 23° /8° 0 mm 4.2
7 Sept. Sunny
Sunny
 23° /10° 0 mm 4.1
8 Sept. Sunny
Sunny
 22° /10° 0.3 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 18° /8° 2 mm 3.9
10 Sept. Light rain
Light rain
 19° /6° 2.5 mm 3.9
11 Sept. Overcast
Overcast
 18° /7° 0.1 mm 3.8
12 Sept. Overcast
Overcast
 19° /8° 0 mm 3.7
13 Sept. Partly cloudy
Partly cloudy
 19° /9° 0.1 mm 3.6
14 Sept. Sunny
Sunny
 17° /7° 0.5 mm 3.5
15 Sept. Overcast
Overcast
 18° /6° 0.2 mm 3.4
16 Sept. Overcast
Overcast
 19° /6° 0 mm 3.4
17 Sept. Patchy rain possible
Patchy rain possible
 20° /8° 2.3 mm 3.3
18 Sept. Sunny
Sunny
 16° /8° 0 mm 3.2
19 Sept. Overcast
Overcast
 15° /6° 0 mm 3
20 Sept. Overcast
Overcast
 17° /7° 0 mm 3
21 Sept. Partly cloudy
Partly cloudy
 17° /7° 0 mm 3
22 Sept. Overcast
Overcast
 18° /7° 0.1 mm 2.9
23 Sept. Partly cloudy
Partly cloudy
 16° /6° 0 mm 2.8
24 Sept. Patchy rain possible
Patchy rain possible
 14° /6° 1.2 mm 2.8
25 Sept. Light rain
Light rain
 14° /4° 3.6 mm 2.7
26 Sept. Patchy rain possible
Patchy rain possible
 13° /4° 1.5 mm 2.6
27 Sept. Patchy rain possible
Patchy rain possible
 12° /5° 1.8 mm 2.5
28 Sept. Light rain
Light rain
 12° /4° 2.4 mm 2
29 Sept. Light rain
Light rain
 10° /4° 5.5 mm 2
30 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 11° /3° 0.3 mm 2.3
Next
Important Notice
Our weather forecast for Fort St. John in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Fort St. John forecast closer to your planned date for the most up-to-date weather information.
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Fort St. John in September - FAQ

What are the expected maximum and minimum temperatures in Fort St. John during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Fort St. John during September?
In September, Fort St. John can expect light to moderate rainfall, totaling 27.5 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Fort St. John during September?
The average wind speed in Fort St. John during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Fort St. John

Explore the daily rainfall trends and prepare for Fort St. Johns September weather 💧
Typically, Fort St. John has 5 rainy days in September with a total of 27.5 mm of rainfall.

UV exposure in Fort St. John during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Fort St. John?

Get accurate weather forecasts for Fort St. John, located at latitude 56.25 and longitude -120.853. Stay updated with localized weather information tailored for Fort St. John.

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