This data the coastal Hallstatter See 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 Hallstatter See today is 11°C. Based on our historical data over a period of ten years, the warmest water in this day in Hallstatter See was 17°C, and the coldest 11°C. Water temperature in Hallstatter See is expected to rise to 12.9°C in the next 10 days. September average water temperature in Hallstatter See is 16.2°C, the minimum temperature is 7°C, and the maximum is 22°C.
The swimming season in Hallstatter See lasts from July to August. During those months, Hallstatter See water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Hallstatter See in winter reaches 3.8°C, in spring 8.7°C, in summer the average temperature rises to 19.2°C, and in autumn it is 12°C.
30 September 2025 |
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today temp |
11°C |
29 September 2025 |
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yesterday temp |
12°C |
Data in a table show Hallstatter See temperature today (30 September 2025). For more information and forecast for a few days, go to the weather forecast Hallstatter See.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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4.2°C | 4.2°C | 8.9°C | 9°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
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8.8°C | 4.4°C | 3.6°C | 3.2°C |
You may also be interested in other sections of our site for Hallstatter See: Sunrise and Sunset
These figures shows the average, minimum and maximum monthly water temperature in Hallstatter See. 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 Hallstatter See 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 | 3.7°C | 3°C | 8°C | cold |
Water temperature in Hallstatter See in January | ||||
February | 4°C | 3°C | 9°C | cold |
Water temperature in Hallstatter See in February | ||||
March | 5.3°C | 3°C | 10°C | cold |
Water temperature in Hallstatter See in March | ||||
April | 8.1°C | 3°C | 16°C | cold |
Water temperature in Hallstatter See in April | ||||
May | 12.6°C | 7°C | 19°C | cold |
Water temperature in Hallstatter See in May | ||||
June | 17.9°C | 12°C | 24°C | cold |
Water temperature in Hallstatter See in June | ||||
July | 19.5°C | 15°C | 24°C | cold |
Water temperature in Hallstatter See in July | ||||
August | 20.1°C | 14°C | 24°C | warm |
Water temperature in Hallstatter See in August | ||||
September | 16.2°C | 7°C | 22°C | cold |
Water temperature in Hallstatter See in September | ||||
October | 12.6°C | 8°C | 18°C | cold |
Water temperature in Hallstatter See in October | ||||
November | 7.3°C | 3°C | 16°C | cold |
Water temperature in Hallstatter See in November | ||||
December | 3.8°C | 3°C | 7°C | cold |
Water temperature in Hallstatter See in December |