Saint Cast Le Guildo Sea Temperature in September

Looking to find out what the average sea water temperature in Saint Cast Le Guildo is for September? Find out what the lowest, highest, and average water temperatures are for Saint Cast Le Guildo over the past 10 years.

Average water temperature in Saint Cast Le Guildo for September

The average, high, and low temperatures below should help you if you can swim in the water in Saint Cast Le Guildo in September.

17.9° C

(64.23° F)

  • highest: 19.81° C (67.66° F)
  • lowest: 16.32° C (61.38° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Water temperature range by day in September in Saint Cast Le Guildo

The chart below shows the range of low and high temperatures by day for the month of September in Saint Cast Le Guildo.

Water temperatures for September in Saint Cast Le Guildo in recent years

Day 2024 2023 2022 2021
1 0° C 18.36° C 19.48° C 17.39° C
2 0° C 18.65° C 19.41° C 17.36° C
3 0° C 18.71° C 19.28° C 17.46° C
4 0° C 19.06° C 19.27° C 17.77° C
5 0° C 18.88° C 19.33° C 17.86° C
6 0° C 18.83° C 19.3° C 18.12° C
7 0° C 19.06° C 19.09° C 18.25° C
8 0° C 19.47° C 19.02° C 18.3° C
9 0° C 19.89° C 18.91° C 18.25° C
10 0° C 19.67° C 18.88° C 18.21° C
11 0° C 19.71° C 19.07° C 18.04° C
12 0° C 19.54° C 19.18° C 18.13° C
13 0° C 19.32° C 19.28° C 18.2° C
14 0° C 19.2° C 19.15° C 18.39° C
15 0° C 19.21° C 19.06° C 18.44° C
16 0° C 19.12° C 18.93° C 18.4° C
17 0° C 19.17° C 18.84° C 18.38° C
18 0° C 19.14° C 18.81° C 18.19° C
19 0° C 18.91° C 18.79° C 18.04° C
20 0° C 18.78° C 18.72° C 18.06° C
21 0° C 18.71° C 18.7° C 18.01° C
22 0° C 18.67° C 18.52° C 17.89° C
23 0° C 18.56° C 18.61° C 17.98° C
24 0° C 18.47° C 18.63° C 18.11° C
25 0° C 18.46° C 18.5° C 18.13° C
26 0° C 18.34° C 18.35° C 18.1° C
27 0° C 18.31° C 18.15° C 17.96° C
28 0° C 18.33° C 17.92° C 17.89° C
29 0° C 18.24° C 17.85° C 17.61° C
30 0° C 18.27° C 17.77° C 17.58° C

Water temperature in September for locations near Saint Cast Le Guildo

Plevenon

France, Europe

3.61 miles away

Cap Frehel

France, Europe

4.44 miles away

Lancieux

France, Europe

5.29 miles away

Saint Briac Sur Mer

France, Europe

5.87 miles away

Saint Lunaire

France, Europe

6.93 miles away

Dinard

France, Europe

9.35 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Saint Cast Le Guildo comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.

  • "Saint Cast Le Guildo Sea Temperature in September". SeaTemperatures.net. Accessed on May 4, 2024. http://seatemperatures.net/europe/france/saint-cast-le-guildo-september-temperature/.

  • "Saint Cast Le Guildo Sea Temperature in September". SeaTemperatures.net, http://seatemperatures.net/europe/france/saint-cast-le-guildo-september-temperature/. Accessed 4 May, 2024

  • Saint Cast Le Guildo Sea Temperature in September. SeaTemperatures.net. Retrieved from http://seatemperatures.net/europe/france/saint-cast-le-guildo-september-temperature/.