St Mawes Sea Temperature in September

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

Average water temperature in St Mawes for September

The average, high, and low temperatures below should help you if you can swim in the water in St Mawes in September.

15.98° C

(60.77° F)

  • highest: 18.27° C (64.89° F)
  • lowest: 14.19° C (57.54° 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 St Mawes

The chart below shows the range of low and high temperatures by day for the month of September in St Mawes.

Water temperatures for September in St Mawes in recent years

Day 2024 2023 2022 2021
1 0° C 16.57° C 17.1° C 16.4° C
2 0° C 16.79° C 17.26° C 16.26° C
3 0° C 16.78° C 17.04° C 16.15° C
4 0° C 16.92° C 16.81° C 16.51° C
5 0° C 16.81° C 16.82° C 16.74° C
6 0° C 17.12° C 16.81° C 18° C
7 0° C 17.27° C 16.84° C 18.06° C
8 0° C 17.51° C 16.89° C 18.07° C
9 0° C 17.84° C 16.98° C 18.06° C
10 0° C 18.27° C 17.07° C 17.52° C
11 0° C 18.04° C 17.15° C 17.38° C
12 0° C 17.62° C 17.45° C 17.39° C
13 0° C 17.42° C 17.22° C 17.45° C
14 0° C 17.18° C 17.15° C 17.18° C
15 0° C 17.13° C 17.04° C 17.21° C
16 0° C 17.1° C 16.95° C 17.33° C
17 0° C 16.88° C 16.97° C 17.29° C
18 0° C 16.74° C 17° C 17.17° C
19 0° C 16.59° C 17.09° C 16.95° C
20 0° C 16.39° C 17.16° C 16.81° C
21 0° C 16.37° C 17.08° C 16.9° C
22 0° C 16.27° C 16.92° C 16.82° C
23 0° C 16.11° C 17.05° C 16.72° C
24 0° C 15.92° C 17.02° C 16.58° C
25 0° C 15.85° C 16.88° C 16.78° C
26 0° C 15.84° C 16.74° C 16.57° C
27 0° C 15.76° C 16.69° C 16.43° C
28 0° C 15.98° C 16.5° C 16.43° C
29 0° C 16.02° C 16.45° C 16.29° C
30 0° C 16.19° C 16.43° C 16° C

Water temperature in September for locations near St Mawes

Portscatho

United Kingdom, Europe

2.27 miles away

Falmouth

United Kingdom, Europe

2.32 miles away

Penryn

United Kingdom, Europe

4.16 miles away

Truro

United Kingdom, Europe

7.41 miles away

Isles of Scilly

United Kingdom, Europe

7.78 miles away

Coverack

United Kingdom, Europe

9.97 miles away

Data source and citation

Raw data for the calculations made to find the sea surface temperature in St Mawes 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.

  • "St Mawes Sea Temperature in September". SeaTemperatures.net. Accessed on April 28, 2024. http://seatemperatures.net/europe/united-kingdom/st-mawes-september-temperature/.

  • "St Mawes Sea Temperature in September". SeaTemperatures.net, http://seatemperatures.net/europe/united-kingdom/st-mawes-september-temperature/. Accessed 28 April, 2024

  • St Mawes Sea Temperature in September. SeaTemperatures.net. Retrieved from http://seatemperatures.net/europe/united-kingdom/st-mawes-september-temperature/.