This data the coastal Klagenfurt water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Water temperature in Klagenfurt today is 11°C. Based on our historical data over a period of ten years, the warmest water in this day in Klagenfurt was recorded in 2023 and was 17°C, and the coldest 11°C. Water temperature in Klagenfurt is expected to rise to 12.9°C in the next 10 days. September average water temperature in Klagenfurt is 16.5°C, the minimum temperature is 10°C, and the maximum is 22°C.
The swimming season in Klagenfurt lasts from July to August. During those months, Klagenfurt water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Klagenfurt in winter reaches 3.5°C, in spring 9.5°C, in summer the average temperature rises to 20.1°C, and in autumn it is 11.9°C.
30 September 2025 |
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today temp |
11°C |
29 September 2025 |
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yesterday temp |
13°C |
Data in a table show Klagenfurt temperature today (30 September 2025). For more information and forecast for a few days, go to the weather forecast Klagenfurt.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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8.6°C | 6.9°C | 7.9°C | 9.5°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
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9.9°C | 9.9°C | 7.3°C | 7.6°C |
You may also be interested in other sections of our site for Klagenfurt: Sunrise and Sunset
These figures shows the average, minimum and maximum monthly water temperature in Klagenfurt. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Klagenfurt on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
Month | Avr | Min | Max | |
---|---|---|---|---|
January | 3.5°C | 3°C | 7°C | cold |
Water temperature in Klagenfurt in January | ||||
February | 3.7°C | 3°C | 6°C | cold |
Water temperature in Klagenfurt in February | ||||
March | 5.6°C | 3°C | 11°C | cold |
Water temperature in Klagenfurt in March | ||||
April | 9.3°C | 4°C | 16°C | cold |
Water temperature in Klagenfurt in April | ||||
May | 13.5°C | 9°C | 18°C | cold |
Water temperature in Klagenfurt in May | ||||
June | 18.6°C | 12°C | 23°C | cold |
Water temperature in Klagenfurt in June | ||||
July | 20.7°C | 17°C | 24°C | warm |
Water temperature in Klagenfurt in July | ||||
August | 21°C | 16°C | 25°C | warm |
Water temperature in Klagenfurt in August | ||||
September | 16.5°C | 10°C | 22°C | cold |
Water temperature in Klagenfurt in September | ||||
October | 12.3°C | 8°C | 17°C | cold |
Water temperature in Klagenfurt in October | ||||
November | 6.9°C | 3°C | 15°C | cold |
Water temperature in Klagenfurt in November | ||||
December | 3.4°C | 3°C | 6°C | cold |
Water temperature in Klagenfurt in December |