Cornwall Sea Temperature in October

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

Average water temperature in Cornwall for October

The average, high, and low temperatures below should help you if you can swim in the water in Cornwall in October.

13.95° C

(57.11° F)

  • highest: 16.97° C (62.55° F)
  • lowest: 9.72° C (49.5° F)

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a very big risk.

Water temperature range by day in October in Cornwall

The chart below shows the range of low and high temperatures by day for the month of October in Cornwall.

Water temperatures for October in Cornwall in recent years

Day 2024 2023 2022 2021
1 0° C 16.4° C 15.86° C 16.93° C
2 0° C 16.37° C 15.63° C 16.81° C
3 0° C 16.39° C 15.37° C 16.66° C
4 0° C 16.33° C 15.02° C 16.1° C
5 0° C 16.43° C 15.17° C 15.8° C
6 0° C 16.41° C 15.22° C 16.03° C
7 0° C 16.5° C 15.28° C 16.17° C
8 0° C 16.12° C 15.35° C 16.23° C
9 0° C 15.75° C 15.29° C 15.48° C
10 0° C 15.5° C 15.06° C 15.38° C
11 0° C 15.29° C 14.82° C 15.34° C
12 0° C 15.28° C 14.6° C 15.26° C
13 0° C 15.35° C 14.46° C 15.17° C
14 0° C 15.1° C 14.38° C 15.15° C
15 0° C 15.01° C 14.18° C 15.18° C
16 0° C 14.89° C 14.42° C 15.11° C
17 0° C 14.1° C 14.51° C 15.03° C
18 0° C 13.98° C 14.53° C 14.9° C
19 0° C 13.86° C 14.47° C 14.68° C
20 0° C 13.84° C 14.38° C 14.33° C
21 0° C 13.8° C 14.25° C 13.86° C
22 0° C 13.87° C 14.1° C 13.7° C
23 0° C 13.54° C 14° C 13.88° C
24 0° C 13.48° C 14.1° C 14.13° C
25 0° C 13.46° C 14.81° C 14.01° C
26 0° C 13.46° C 14.98° C 13.91° C
27 0° C 13.56° C 14.65° C 13.37° C
28 0° C 13.64° C 14.22° C 13.35° C
29 0° C 13.49° C 13.79° C 13.18° C
30 0° C 13.15° C 13.43° C 13.32° C
31 0° C 12.9° C 13.18° C 12.28° C

Water temperature in October for locations near Cornwall

Charlottetown

Canada, North America

4.15 miles away

Hojo

Japan, Asia

4.23 miles away

Brackley Beach

Canada, North America

12.21 miles away

North Rustico

Canada, North America

16.46 miles away

Cavendish Beach

Canada, North America

19.66 miles away

Northumberland Strait

Canada, North America

24.28 miles away

Data source and citation

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

  • "Cornwall Sea Temperature in October". SeaTemperatures.net. Accessed on May 5, 2024. http://seatemperatures.net/north-america/canada/cornwall-october-temperature/.

  • "Cornwall Sea Temperature in October". SeaTemperatures.net, http://seatemperatures.net/north-america/canada/cornwall-october-temperature/. Accessed 5 May, 2024

  • Cornwall Sea Temperature in October. SeaTemperatures.net. Retrieved from http://seatemperatures.net/north-america/canada/cornwall-october-temperature/.