Water temperature in Rorschach

This data the coastal Rorschach 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.

Current water temperature in Rorschach

Water temperature in Rorschach today is 18.3°C. Based on our historical data over a period of ten years, the warmest water in this day in Rorschach was recorded in 2018 and was 18.9°C, and the coldest was recorded in 2022 at 16.8°C. Water temperature in Rorschach is expected to drop to 16°C in the next 10 days. September average water temperature in Rorschach is 19.5°C, the minimum temperature is 16.3°C, and the maximum is 23.2°C.

The swimming season in Rorschach lasts from June to September. During those months, Rorschach water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Rorschach in winter reaches 6.2°C, in spring 9.9°C, in summer the average temperature rises to 21.1°C, and in autumn it is 15°C.

Rorschach water temperature now

Current temperature and weather

Data in a table show Rorschach temperature today (26 September 2025). For more information and forecast for a few days, go to the weather forecast Rorschach.

0-3 h	3-6 h	6-9 h	9-12 h
8.2°C	7.7°C	6.1°C	9.2°C

12-15 h	15-18 h	18-21 h	21-24 h
11.8°C	12.5°C	10.7°C	9.4°C

Rorschach water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Rorschach. 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 Rorschach 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

Chart monthly average water temperature in Rorschach

The nearest beaches and cities from Rorschach with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Kreuzlingen	18.3°C	13°C
Immenstaad am Bodensee	18.3°C	13°C
Langenargen	18.4°C	13°C
Constance	18.4°C	14°C
Meersburg	18.4°C	14°C
Uhldingen-Muhlhofen	18.4°C	14°C
Hagnau am Bodensee	18.4°C	14°C
Mainau	18.4°C	14°C
Uberlingen	18.5°C	14°C
Sipplingen	18.5°C	14°C

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Our report for Rorschach is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.