Water temperature in Romanshorn in May

Is it warm enough to swim in Romanshorn in May? Average water temperature in Romanshorn in May is 14.3°C and therefore is not suitable for comfortable swimming. The warmest water in Romanshorn in May is 19.6°C, and the coldest is 11.3°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Romanshorn

Changes water temperature in Romanshorn in May 2025, 2024

To get an accurate forecast for the water temperature in Romanshorn for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Romanshorn, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of May.

Sea temperature

Tides

Sunrise and Sunset

You can choose any other years:

Day	2025	2024	Min	Max
1 May	15.1°C	12.9°C	11.3°C	15.1°C
2 May	15.4°C	12.9°C	11.4°C	15.4°C
3 May	15.5°C	12.9°C	11.7°C	15.5°C
4 May	15.4°C	13°C	11.8°C	15.4°C
5 May	15.3°C	13.1°C	12°C	15.3°C
6 May	15.2°C	13.2°C	12.2°C	15.2°C
7 May	15.2°C	13.3°C	12.4°C	15.2°C
8 May	15.1°C	13.4°C	12.4°C	15.1°C
9 May	15.1°C	13.1°C	12.6°C	15.1°C
10 May	13.7°C	14.2°C	12.8°C	15°C
11 May	14.4°C	14.5°C	12.9°C	15.9°C
12 May	14.2°C	14.4°C	13°C	15.8°C
13 May	14.2°C	15.6°C	13.1°C	15.7°C
14 May	14.8°C	15.4°C	13.2°C	16.9°C
15 May	14.6°C	14.6°C	13.3°C	16.8°C

Day	2025	2024	Min	Max
16 May	14.9°C	14.6°C	13.3°C	17.5°C
17 May	14.9°C	14°C	13.5°C	18.8°C
18 May	15.3°C	14.9°C	13.6°C	19.5°C
19 May	15.3°C	14.6°C	13.6°C	18.4°C
20 May	15.4°C	14.8°C	13.8°C	18.3°C
21 May	15.4°C	14.9°C	14.1°C	18.5°C
22 May	15.1°C	15°C	14.2°C	18.4°C
23 May	15.3°C	15.1°C	14.3°C	18.3°C
24 May	15.4°C	14.7°C	14.1°C	18.2°C
25 May	15.4°C	15.3°C	13.9°C	18.4°C
26 May	15.3°C	15.2°C	13.7°C	17.8°C
27 May	15.3°C	15.2°C	13.7°C	18.5°C
28 May	15.5°C	15.1°C	13.7°C	18.7°C
29 May	15.7°C	15.1°C	13.7°C	19.5°C
30 May	16.6°C	15.1°C	13.5°C	19.4°C
31 May	16.5°C	15°C	13.6°C	19.6°C

Average water temperature in Romanshorn in May over a decade

2016	2017	2018	2019	2020
13.7°C	14.3°C	15.2°C	13.8°C	14.6°C

2021	2022	2023	2024	2025
13.4°C	16.4°C	14.1°C	14.4°C	15.2°C

Romanshorn water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Temperature in neighboring cities

The nearest locations with the average water temperature in May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Arbon	14.3°C	11.3°C	19.6°C
Rorschach	14.3°C	11.3°C	19.6°C
Kreuzlingen	14.3°C	11.2°C	19.7°C
Immenstaad am Bodensee	14.3°C	11.2°C	19.7°C
Langenargen	14.3°C	11.3°C	19.4°C
Constance	14.4°C	11.4°C	19.9°C
Meersburg	14.4°C	11.4°C	19.9°C
Uhldingen-Muhlhofen	14.4°C	11.4°C	19.9°C
Hagnau am Bodensee	14.4°C	11.4°C	19.9°C
Mainau	14.4°C	11.4°C	19.9°C

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Our report for Romanshorn 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.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature