Sea TemperaturesCornwall 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.
Average
14.09° C
57.36° F
High
16.93° C
62.47° F
Low
9.72° C
49.5° F
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.
Average daily water temperatures in Cornwall for October
| Day | Average | Low | High |
|---|---|---|---|
| 1 | 15.98° C | 14.61° C | 16.93° C |
| 2 | 15.81° C | 14.29° C | 16.81° C |
| 3 | 15.67° C | 14.3° C | 16.66° C |
| 4 | 15.44° C | 14.21° C | 16.33° C |
| 5 | 15.32° C | 13.87° C | 16.41° C |
| 6 | 15.38° C | 13.84° C | 16.39° C |
| 7 | 15.42° C | 13.84° C | 16.48° C |
| 8 | 15.43° C | 13.59° C | 16.23° C |
| 9 | 15.24° C | 13.39° C | 16.24° C |
| 10 | 15.04° C | 13.49° C | 15.82° C |
| 11 | 14.87° C | 13.84° C | 15.56° C |
| 12 | 14.58° C | 13.42° C | 15.26° C |
| 13 | 14.37° C | 12.89° C | 15.33° C |
| 14 | 14.23° C | 12.41° C | 15.15° C |
| 15 | 14.08° C | 12.14° C | 15.18° C |
| 16 | 13.98° C | 12.04° C | 15.11° C |
| 17 | 13.78° C | 11.74° C | 15.03° C |
| 18 | 13.67° C | 11.77° C | 14.9° C |
| 19 | 13.51° C | 10.98° C | 14.68° C |
| 20 | 13.5° C | 11.18° C | 14.38° C |
| 21 | 13.41° C | 11.29° C | 14.26° C |
| 22 | 13.32° C | 10.9° C | 14.1° C |
| 23 | 13.23° C | 10.79° C | 14.04° C |
| 24 | 13.22° C | 10.69° C | 14.13° C |
| 25 | 13.11° C | 10.62° C | 14.81° C |
| 26 | 12.87° C | 9.72° C | 14.98° C |
| 27 | 12.73° C | 9.75° C | 14.65° C |
| 28 | 12.57° C | 9.82° C | 14.22° C |
| 29 | 12.49° C | 10.13° C | 13.79° C |
| 30 | 12.32° C | 9.95° C | 13.43° C |
| 31 | 12.12° C | 9.78° C | 13.19° C |
Water temperature in October for locations near Cornwall
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.