Water temperature in Marennes in June

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Is it warm enough to swim in Marennes in June? Average water temperature in Marennes in June is 18.4°C and therefore is not suitable for comfortable swimming. The warmest sea in Marennes in June is 23.3°C, and the coldest is 14.2°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Marennes

Changes water temperature in Marennes in June 2025, 2024

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

Sea temperature

Sea state

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 June	18.3°C	17.8°C	14.2°C	18.4°C
2 June	18.2°C	17.5°C	14.7°C	18.9°C
3 June	18.3°C	17.6°C	15.1°C	18.4°C
4 June	18.1°C	17.5°C	15.2°C	18.5°C
5 June	18°C	17.4°C	15.8°C	18.6°C
6 June	18°C	16.8°C	16°C	19.1°C
7 June	17.9°C	16.9°C	16.2°C	19°C
8 June	17.8°C	17.2°C	15.9°C	19.4°C
9 June	17.9°C	18°C	15.9°C	19.8°C
10 June	18.6°C	17.9°C	16.1°C	19.8°C
11 June	18.8°C	17.9°C	16.3°C	18.8°C
12 June	19.4°C	17.7°C	16.4°C	19.4°C
13 June	19.3°C	17.7°C	16.5°C	20°C
14 June	19.1°C	17.9°C	16.7°C	20.2°C
15 June	20°C	18.1°C	17.1°C	20.1°C

Day	2025	2024	Min	Max
16 June	20.3°C	18.1°C	17.2°C	20.5°C
17 June	20.6°C	18.1°C	17.4°C	20.6°C
18 June	20.9°C	18.3°C	18°C	20.9°C
19 June	21.1°C	18.2°C	17.7°C	21.1°C
20 June	21.6°C	18.3°C	17.3°C	21.6°C
21 June	21.7°C	18.4°C	17.2°C	21.7°C
22 June		18.6°C	17.2°C	20.6°C
23 June	21.1°C	18.5°C	16.7°C	21.1°C
24 June	21.2°C	19.5°C	16.8°C	21.2°C
25 June	21.5°C	19.6°C	17°C	21.6°C
26 June	21.4°C	20.1°C	17°C	21.7°C
27 June	22°C	20.7°C	17.1°C	22°C
28 June	22.8°C	20.3°C	17.1°C	22.8°C
29 June	23.3°C	20.1°C	17.4°C	23.3°C
30 June	22.8°C	20.4°C	17.9°C	22.8°C

Average water temperature in Marennes in June over a decade

2016	2017	2018	2019	2020
18.1°C	19°C	19.3°C	18.6°C	18.5°C

2021	2022	2023	2024	2025
19.4°C	19.3°C	20°C	18.4°C	20°C

Marennes water temperature during other months:

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

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Our report for Marennes 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.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature