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Weather in Rjukan for September 2025

Your guide to Rjukan weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Rjukan during September is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in Rjukan at the beginning of September is 15 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.6 °C by the end of September.

    • Rain 🌧️

  • With an average of 4 rainy days, Rjukan experiences minimal rainfall in September.

Average dry days
25
Dry days
Average rainy days
4
Rainy days
Average snowy days
1
Snow days
Average temperatures
13°/2°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Rjukan Weather September

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

Temperatures trend during September in Rjukan

See the weather trend as well as the moving average line

September weather in Rjukan day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
1 Sept. Overcast
Overcast
 16° /5° 0.1 mm 0 cm
2 Sept. Sunny
Sunny
 14° /6° 0.1 mm 0 cm
3 Sept. Overcast
Overcast
 10° /6° 11.1 mm 0 cm
4 Sept. Cloudy
Cloudy
 13° /7° 13.8 mm 0 cm
5 Sept. Cloudy
Cloudy
 17° /7° 0.1 mm 0 cm
6 Sept. Overcast
Overcast
 17° /6° 0 mm 0 cm
7 Sept. Sunny
Sunny
 18° /7° 0.1 mm 0 cm
8 Sept. Sunny
Sunny
 16° /9° 1.2 mm 0 cm
9 Sept. Partly cloudy
Partly cloudy
 16° /9° 1.2 mm 0 cm
10 Sept. Partly cloudy
Partly cloudy
 13° /5° 1.2 mm 0 cm
11 Sept. Light rain shower
Light rain shower
 9° /3° 1.6 mm 0.4 cm
12 Sept. Sunny
Sunny
 9° /0° 0.1 mm 0 cm
13 Sept. Partly cloudy
Partly cloudy
 8° /-1° 0 mm 0 cm
14 Sept. Mist
Mist
 8° /1° 0 mm 0 cm
15 Sept. Fog
Fog
 10° /3° 0.1 mm 0 cm
16 Sept. Light drizzle
Light drizzle
 8° /3° 9.5 mm 0 cm
17 Sept. Sunny
Sunny
 11° /2° 0 mm 0 cm
18 Sept. Moderate rain
Moderate rain
 10° /5° 8.9 mm 0 cm
19 Sept. Light rain shower
Light rain shower
 12° /4° 7.6 mm 0 cm
20 Sept. Light drizzle
Light drizzle
 11° /3° 2.8 mm 0 cm
21 Sept. Light rain shower
Light rain shower
 13° /6° 10.2 mm 0 cm
22 Sept. Moderate rain
Moderate rain
 12° /4° 9.4 mm 0 cm
23 Sept. Patchy rain possible
Patchy rain possible
 10° /3° 0.2 mm 0 cm
24 Sept. Partly cloudy
Partly cloudy
 8° /1° 6.5 mm 0 cm
25 Sept. Light rain shower
Light rain shower
 9° /2° 10.7 mm 0 cm
26 Sept. Mist
Mist
 8° /1° 0.1 mm 0 cm
27 Sept. Heavy rain
Heavy rain
 8° /3° 14.1 mm 0 cm
28 Sept. Light rain shower
Light rain shower
 7° /1° 1.2 mm 0 cm
29 Sept. Patchy rain possible
Patchy rain possible
 6° /0° 0.3 mm 0 cm
30 Sept. Patchy rain possible
Patchy rain possible
 7° /1° 0.2 mm 0 cm
Next
Important Notice
Our weather forecast for Rjukan 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 Rjukan forecast closer to your planned date for the most up-to-date weather information.
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Rjukan in September - FAQ

What are the expected maximum and minimum temperatures in Rjukan during September?
Prepare for cooler days with highs just around 13° and colder nights, dipping below 2°.
How much rainfall should be expected in Rjukan during September?
Significant rainfall exceeding 224.5 mm is expected in Rjukan during September, occurring over more than 4 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Rjukan in September 2025?
Rjukan typically sees 1 cm of snowfall during September.
What are the typical wind conditions in Rjukan during September?
The average wind speed in Rjukan during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

Rjukan snow forecast September 2025

Track daily snowfall levels and discover Rjukan’s snowy potential this September ❄️

September rainfall patterns in Rjukan

Explore the daily rainfall trends and prepare for Rjukans September weather 💧

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Location coordinates Where is Rjukan?

Get accurate weather forecasts for Rjukan, located at latitude 59.879 and longitude 8.594. Stay updated with localized weather information tailored for Rjukan.

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