Karlovy Vary
September
Weather in Karlovy Vary for September 2026
Your guide to Karlovy Vary weather in September - trends and predictions
Until now, September 2026 in Karlovy Vary is cooler than usual, with temperatures averaging 19.3 °C, this is 2.2 °C below the typical seasonal average.
The forecast for the next days in Karlovy Vary predicts a temperature of 15.8 °C, which is cooler than the historical average.
In general, the average temperature in Karlovy Vary at the beginning of September is 23 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.3 °C by the end of September.
The climate of Karlovy Vary in September is notably wet, with an average of 14 rainy days, and a total of 66.4 mm of precipitation.
Temperatures
Rain 🌧️
16
Dry days
14
Rainy days
0
Snow days
19°/8°
Temperatures
16 km/h
Avg max wind
74 %
Avg humidity
Karlovy Vary Weather September
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Temperatures trend during September in Karlovy Vary
See the weather trend as well as the moving average line
September weather in Karlovy Vary day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 23° /11° | 0.3 mm | 5 | |
| 2 Sept. |  Patchy rain possible | 23° /13° | 3.9 mm | 4 | |
| 3 Sept. |  Thundery outbreaks possible | 23° /12° | 1.4 mm | 4 | |
| 4 Sept. |  Sunny | 26° /13° | 0.7 mm | 5 | |
| 5 Sept. | Partly cloudy | 22° /12° | 2.7 mm | 5 | |
| 6 Sept. | Partly cloudy | 21° /9° | 0.5 mm | 5 | |
| 7 Sept. |  Overcast | 23° /10° | 0 mm | 5 | |
| 8 Sept. | Sunny | 26° /13° | 0.1 mm | 6 | |
| 9 Sept. | Light rain shower | 19° /11° | 8.3 mm | 4 | |
| 10 Sept. | Light rain shower | 19° /9° | 1.4 mm | 4 | |
| 11 Sept. |  Light drizzle | 17° /7° | 1.3 mm | 4 | |
| 12 Sept. | Light rain shower | 16° /7° | 1 mm | 3 | |
| 13 Sept. | Patchy rain possible | 16° /8° | 5.4 mm | 3 | |
| 14 Sept. | Patchy rain possible | 16° /11° | 5.1 mm | 4.5 | |
| 15 Sept. | Sunny | 21° /12° | 0 mm | 4.7 | |
| 16 Sept. | Sunny | 20° /14° | 5.2 mm | 4.8 | |
| 17 Sept. | Patchy rain possible | 15° /9° | 0.3 mm | 5 | |
| 18 Sept. | Overcast | 13° /9° | 0 mm | 4 | |
| 19 Sept. | Patchy rain possible | 15° /8° | 0.1 mm | 4 | |
| 20 Sept. | Sunny | 17° /9° | 0 mm | 5 | |
| 21 Sept. | Sunny | 21° /11° | 0 mm | 6 | |
| 22 Sept. | Sunny | 16° /10° | 0 mm | 4 | |
| 23 Sept. | Sunny | 13° /6° | 0 mm | 4 | |
| 24 Sept. | Sunny | 15° /7° | 0 mm | 4 | |
| 25 Sept. | Patchy rain possible | 12° /7° | 0.1 mm | 4 | |
| 26 Sept. | Sunny | 13° /6° | 0 mm | 4 | |
| 27 Sept. | Sunny | 14° /7° | 0 mm | 4 | |
| 28 Sept. | Light drizzle | 15° /5° | 0.7 mm | 4 | |
| 29 Sept. | Patchy rain possible | 13° /3° | 0 mm | 4 | |
| 30 Sept. | Overcast | 11° /2° | 0 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Karlovy Vary 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 Karlovy Vary forecast closer to your planned date for the most up-to-date weather information.
Change Month
Karlovy Vary in September - FAQ
What are the expected maximum and minimum temperatures in Karlovy Vary during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Karlovy Vary during September?
Moderate rainfall is anticipated in Karlovy Vary during September, with a total of 66.4 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Karlovy Vary during September?
The average wind speed in Karlovy Vary during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Karlovy Vary
Explore the daily rainfall trends and prepare for Karlovy Varys September weather 💧
Typically, Karlovy Vary has 14 rainy days in September with a total of 66.4 mm of rainfall.
UV exposure in Karlovy Vary during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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