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Coldest sea in United Kingdom in October

914 coastal locations in United Kingdom ranked by typical October sea temperature, coldest first. Region-wide average in October: 14.1°C.

Coldest in October

Lerwick

11.4°C October mean in United Kingdom

Regional October average

14.1°C

across all 914 coastal locations in United Kingdom

Vs annual mean

+2.2°C

above the year-round regional average

What the United Kingdom sea feels like in October

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 real risk.

United Kingdom monthly average 8.1°C to 16.5°C
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  • Warmest month August 16.5°C
  • Coldest month February 8.1°C
  • Annual mean 12.0°C
  • Months above 20°C 0 of 12

Where October fits in the year

October sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve United Kingdom month rankings:

United Kingdom sea temperature map (live)

The map shows today's latest reading at every United Kingdom location. The list below is based on the typical October mean.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest United Kingdom locations in October

Sorted by typical October mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location October mean
1 Lerwick Scotland 11.4°C
2 Sandwick Scotland 11.4°C
3 Shetland Scotland 11.4°C
4 Sumburgh Scotland 11.4°C
5 Shetland Shetland Islands 11.5°C
6 Scalloway Shetland Islands 11.6°C
7 Baltasound Pier Shetland Islands 11.6°C
8 Rockall Comhairle nan Eilean Siar 11.6°C
9 Bay of Quendale Shetland Islands 11.6°C
10 Sumburgh (Grutness Voe) Shetland Islands 11.6°C
11 Esha Ness (Hamna Voe) Shetland Islands 11.6°C
12 Out Skerries Orkney 11.6°C
13 Hillswick Shetland Islands 11.6°C
14 Sullom Voe Shetland Islands 11.6°C
15 Burra Voe (Yell Sound) Shetland Islands 11.7°C
16 Dury Voe Shetland Islands 11.7°C
17 Mid Yell Shetland Islands 11.7°C
18 Toft Pier Shetland Islands 11.7°C
19 Tofts Voe Shetland Islands 11.7°C
20 West Burra Firth Shetland Islands 11.7°C
21 Foula Shetland Islands 11.8°C
22 Fair Isle Shetland Islands 11.8°C
23 Cullercoats Northumberland 11.8°C
24 North Shields Tyne and Wear 11.8°C
25 Tynemouth Tyne and Wear 11.8°C
Show 25 more ▸
26 Whitley Bay Tyne and Wear 11.8°C
27 Blyth Northumberland 11.8°C
28 Easington Durham 11.8°C
29 Newbiggin-by-the-Sea Northumberland 11.8°C
30 Seaham Durham 11.8°C
31 South Shields Tyne and Wear 11.8°C
32 Sunderland Tyne and Wear 11.8°C
33 Whitburn Tyne and Wear 11.8°C
34 Alnmouth Northumberland 11.9°C
35 Amble Northumberland 11.9°C
36 Druridge Bay Northumberland 11.9°C
37 Warkworth England 11.9°C
38 Newcastle upon Tyne Tyne and Wear 11.9°C
39 Cresswell Northumberland 12.0°C
40 River Tyne Tyne and Wear 12.0°C
41 Hartlepool Tyne and Wear 12.0°C
42 Marske-by-the-Sea North Yorkshire 12.0°C
43 Redcar North Yorkshire 12.0°C
44 Saltburn-by-the-Sea North Yorkshire 12.0°C
45 Staithes North Yorkshire 12.0°C
46 Aberdour Scotland 12.0°C
47 Airth Scotland 12.0°C
48 Bo'ness Scotland 12.0°C
49 Craster Northumberland 12.0°C
50 Edinburgh Scotland 12.0°C

Warmest 10 in United Kingdom in October

Same data the other way. The warmest spots for the same month.

# Location October mean
1 English Channel England 16.6°C
2 Sovereign Harbour East Sussex 16.6°C
3 Newhaven East Sussex 16.6°C
4 Seaford East Sussex 16.6°C
5 Bexhill-on-Sea East Sussex 16.6°C
6 Brighton Marina Brighton and Hove 16.6°C
7 Eastbourne East Sussex 16.6°C
8 Normans Bay East Sussex 16.6°C
9 Pevensey Bay East Sussex 16.6°C
10 Shoreham Harbour West Sussex 16.6°C

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