Water temperature in Trevignon in August

Is it warm enough to swim in Trevignon in August? Average water temperature in Trevignon in August is 18°C and therefore is not suitable for comfortable swimming. The warmest sea in Trevignon in August is 20.9°C, and the coldest is 13.6°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Trevignon

Changes water temperature in Trevignon in August 2025, 2024

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

Sea temperature

Sea state

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 August	17.4°C	19.3°C	15.8°C	19.6°C
2 August	17.3°C	19.2°C	15.5°C	19.2°C
3 August	16.8°C	18.5°C	14.5°C	19.4°C
4 August	17°C	18.3°C	15.2°C	20°C
5 August	16.9°C	19.1°C	14.2°C	20.5°C
6 August	17.1°C	18.7°C	14.1°C	20.8°C
7 August	17°C	18.9°C	13.6°C	20.5°C
8 August	17.1°C	18.7°C	14.8°C	20.1°C
9 August	17.3°C	18.9°C	15.7°C	19.9°C
10 August	17.9°C	19.3°C	15.7°C	20.1°C
11 August	18.2°C	20.1°C	16.7°C	20.9°C
12 August	17.9°C	19.7°C	16.6°C	20.4°C
13 August	18.4°C	19.6°C	16.3°C	20.1°C
14 August	18.6°C	19.2°C	16.2°C	20°C
15 August	18.5°C	18.7°C	16.2°C	19.9°C

Day	2025	2024	Min	Max
16 August	18.8°C	18.9°C	16.4°C	19.4°C
17 August	18.4°C	18.5°C	16.3°C	19.5°C
18 August	18.5°C	18.1°C	16.3°C	19.5°C
19 August	18.5°C	18.5°C	16.6°C	19.3°C
20 August	18.3°C	18°C	16.8°C	19.4°C
21 August	17.9°C	17.9°C	16.9°C	19.4°C
22 August	17.9°C	17.7°C	17°C	19.6°C
23 August	18°C	17.3°C	16.9°C	20.1°C
24 August	18°C	17.9°C	16.9°C	19.7°C
25 August	18.4°C	18°C	16.9°C	19.5°C
26 August	18.9°C	18.5°C	16.9°C	19.1°C
27 August	18.4°C	19.1°C	16.9°C	19.1°C
28 August	18.4°C	18.9°C	16.8°C	18.9°C
29 August	18°C	18.5°C	17°C	18.9°C
30 August	17.8°C	18.4°C	17°C	19.2°C
31 August	17.5°C	18.3°C	16.7°C	19°C

Average water temperature in Trevignon in August over a decade

2016	2017	2018	2019	2020
18.4°C	17.8°C	18.8°C	18.3°C	19°C

2021	2022	2023	2024	2025
17.6°C	17.8°C	17.2°C	18.7°C	17.1°C

Trevignon 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 August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Kerfany les Pins	18.1°C	13.8°C	20.9°C
Benodet	17.6°C	13.4°C	20°C
La Foret Fouesnant	17.6°C	13.8°C	19.9°C
Guidel Plage	18.1°C	14°C	20.5°C
Le Pouldu	18.1°C	14.2°C	20.5°C
Loctudy	17.5°C	13.3°C	19.8°C
Plobannalec Lesconil	17.4°C	13.1°C	19.7°C
Combrit	17.5°C	13.6°C	19.7°C
Lomener	18.1°C	15.1°C	20.4°C
Ploemeur	18.1°C	15.1°C	20.4°C

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Our report for Trevignon 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