Karlstad
September
Weather in Karlstad for September 2025
Your guide to Karlstad weather in September - trends and predictions
In general, the average temperature in Karlstad at the beginning of September is 20.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.4 °C by the end of September.
With an average of 2 rainy days, Karlstad experiences minimal rainfall in September.
Temperatures
Rain 🌧️
28
Dry days
2
Rainy days
0
Snow days
19°/10°
Temperatures
20 km/h
Avg max wind
78 %
Avg humidity
Karlstad Weather September
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Temperatures trend during September in Karlstad
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September weather in Karlstad day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain shower | 17° /10° | 4.2 mm | 5 | |
| 2 Sept. |  Partly cloudy | 18° /11° | 0.1 mm | 5 | |
| 3 Sept. |  Overcast | 19° /11° | 0.1 mm | 5 | |
| 4 Sept. |  Sunny | 24° /13° | 0.7 mm | 6 | |
| 5 Sept. | Sunny | 24° /14° | 0 mm | 6 | |
| 6 Sept. | Patchy rain possible | 21° /14° | 0.1 mm | 5 | |
| 7 Sept. | Partly cloudy | 21° /13° | 0 mm | 6 | |
| 8 Sept. | Sunny | 22° /14° | 0 mm | 6 | |
| 9 Sept. | Overcast | 20° /14° | 1.9 mm | 5 | |
| 10 Sept. |  Mist | 19° /12° | 5.3 mm | 5 | |
| 11 Sept. | Patchy rain possible | 16° /12° | 5.6 mm | 4 | |
| 12 Sept. | Overcast | 16° /10° | 4.9 mm | 4 | |
| 13 Sept. |  Cloudy | 14° /9° | 0.8 mm | 3 | |
| 14 Sept. | Cloudy | 15° /7° | 0 mm | 4 | |
| 15 Sept. | Overcast | 16° /9° | 0 mm | 4 | |
| 16 Sept. | Light rain shower | 16° /10° | 0.8 mm | 4 | |
| 17 Sept. | Partly cloudy | 16° /9° | 0 mm | 5 | |
| 18 Sept. |  Light drizzle | 18° /10° | 0.7 mm | 4 | |
| 19 Sept. | Light rain shower | 16° /11° | 6.5 mm | 5 | |
| 20 Sept. | Patchy rain possible | 18° /11° | 0.4 mm | 5 | |
| 21 Sept. | Patchy rain possible | 19° /13° | 0.3 mm | 5 | |
| 22 Sept. | Light rain shower | 16° /11° | 5.5 mm | 5 | |
| 23 Sept. | Light rain shower | 16° /11° | 1.8 mm | 5 | |
| 24 Sept. | Overcast | 16° /10° | 4.5 mm | 4 | |
| 25 Sept. | Patchy rain possible | 15° /12° | 6.3 mm | 4 | |
| 26 Sept. | Cloudy | 15° /10° | 0 mm | 4 | |
| 27 Sept. | Patchy rain possible | 14° /9° | 8.7 mm | 4 | |
| 28 Sept. | Patchy rain possible | 14° /7° | 0.6 mm | 3 | |
| 29 Sept. | Patchy rain possible | 13° /7° | 0.2 mm | 4 | |
| 30 Sept. | Patchy rain possible | 14° /9° | 0.7 mm | 4 | |
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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.
Change Month
Karlstad in September - FAQ
What are the expected maximum and minimum temperatures in Karlstad during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Karlstad during September?
Significant rainfall exceeding 121.5 mm is expected in Karlstad during September, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
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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