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Weather in Karlstad for September 2025

Your guide to Karlstad weather in September - trends and predictions

    Official Weather Alert ⚠️

  • High Water Discharge Warning - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Karlstad is slightly cooler than the historical average by -0.9 °C.

  • The forecast for the next days in Karlstad predicts a temperature of 12.1 °C, which is cooler than the historical average.

  • In general, the average temperature in Karlstad at the beginning of September is 20.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 9.4 °C by the end of September.

    • Rain 🌧️

  • The climate of Karlstad in September is notably wet, with an average of 11 rainy days, and a total of 60.7 mm of precipitation.

Average dry days
19
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/11°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Karlstad Weather September

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

Temperatures trend during September in Karlstad

See the weather trend as well as the moving average line

September weather in Karlstad day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 18° /11° 2.8 mm 5
2 Sept. Partly cloudy
Partly cloudy
 18° /12° 6.1 mm 5
3 Sept. Overcast
Overcast
 19° /11° 0 mm 5
4 Sept. Sunny
Sunny
 23° /13° 1 mm 5
5 Sept. Sunny
Sunny
 22° /14° 2.6 mm 5
6 Sept. Patchy rain possible
Patchy rain possible
 20° /13° 0.1 mm 5
7 Sept. Partly cloudy
Partly cloudy
 21° /13° 0 mm 5
8 Sept. Sunny
Sunny
 21° /14° 0.1 mm 5
9 Sept. Overcast
Overcast
 20° /14° 1.3 mm 5
10 Sept. Mist
Mist
 20° /12° 4 mm 5
11 Sept. Light rain shower
Light rain shower
 17° /13° 6.6 mm 4
12 Sept. Overcast
Overcast
 16° /11° 5.8 mm 4
13 Sept. Cloudy
Cloudy
 15° /10° 3.7 mm 3
14 Sept. Cloudy
Cloudy
 16° /8° 4 mm 4
15 Sept. Overcast
Overcast
 16° /9° 5.1 mm 4
16 Sept. Moderate rain
Moderate rain
 15° /12° 16.6 mm 0.4
17 Sept. Partly cloudy
Partly cloudy
 18° /11° 0 mm 0.6
18 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0.5 mm 0.5
19 Sept. Patchy rain possible
Patchy rain possible
 18° /14° 0.7 mm 0.6
20 Sept. Patchy rain possible
Patchy rain possible
 17° /12° 0.2 mm 0.1
21 Sept. Partly cloudy
Partly cloudy
 13° /9° 0 mm 4
22 Sept. Patchy rain possible
Patchy rain possible
 9° /7° 1.2 mm 2
23 Sept. Moderate rain
Moderate rain
 9° /8° 5.5 mm 2
24 Sept. Moderate rain
Moderate rain
 5° /3° 8.8 mm 1
25 Sept. Moderate rain
Moderate rain
 9° /5° 12.2 mm 2
26 Sept. Patchy rain possible
Patchy rain possible
 8° /6° 1.8 mm 2
27 Sept. Patchy rain possible
Patchy rain possible
 10° /6° 0.4 mm 2
28 Sept. Partly cloudy
Partly cloudy
 10° /5° 0 mm 3
29 Sept. Overcast
Overcast
 10° /5° 0 mm 2
30 Sept. Patchy rain possible
Patchy rain possible
 14° /9° 0.7 mm 4
Next
Important Notice
Our weather forecast for Karlstad 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 Karlstad forecast closer to your planned date for the most up-to-date weather information.
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Karlstad in September - FAQ

What are the expected maximum and minimum temperatures in Karlstad during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Karlstad during September?
Moderate rainfall is anticipated in Karlstad during September, with a total of 60.7 mm spread over approximately 11 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Karlstad during September?
The average wind speed in Karlstad during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Karlstad

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

UV exposure in Karlstad during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Karlstad?

Get accurate weather forecasts for Karlstad, located at latitude 59.379 and longitude 13.504. Stay updated with localized weather information tailored for Karlstad.

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