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Coldest sea in United Kingdom in August

914 coastal locations in United Kingdom ranked by typical August sea temperature, coldest first. Region-wide average in August: 16.5°C.

Coldest in August

Sumburgh

12.9°C August mean in United Kingdom

Regional August average

16.5°C

across all 914 coastal locations in United Kingdom

Vs annual mean

+4.5°C

above the year-round regional average

What the United Kingdom sea feels like in August

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.

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 August fits in the year

August 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 August 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 August

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

# Location August mean
1 Sumburgh Scotland 12.9°C
2 Scalloway Shetland Islands 12.9°C
3 Fair Isle Shetland Islands 12.9°C
4 West Burra Firth Shetland Islands 12.9°C
5 Foula Shetland Islands 12.9°C
6 Bay of Quendale Shetland Islands 13.1°C
7 Sumburgh (Grutness Voe) Shetland Islands 13.1°C
8 Burra Voe (Yell Sound) Shetland Islands 13.1°C
9 Dury Voe Shetland Islands 13.1°C
10 Mid Yell Shetland Islands 13.1°C
11 Toft Pier Shetland Islands 13.1°C
12 Tofts Voe Shetland Islands 13.1°C
13 Esha Ness (Hamna Voe) Shetland Islands 13.1°C
14 Hillswick Shetland Islands 13.1°C
15 Sullom Voe Shetland Islands 13.1°C
16 Shetland Shetland Islands 13.1°C
17 Kettletoft Pier Orkney 13.2°C
18 Loth Orkney 13.2°C
19 Whitehall Orkney 13.2°C
20 Kirkwall Scotland 13.2°C
21 Orkney Scotland 13.2°C
22 Shetland Scotland 13.2°C
23 Pierowall Orkney 13.2°C
24 Rapness Orkney 13.2°C
25 Bur Wick Orkney 13.2°C
Show 25 more ▸
26 Burray Ness Orkney 13.2°C
27 Deer Sound Orkney 13.2°C
28 Egilsay Orkney 13.2°C
29 Newark Bay Orkney 13.2°C
30 St Mary's Bay Orkney 13.2°C
31 St. Mary's Orkney 13.2°C
32 Widewall Bay Orkney 13.2°C
33 Baltasound Pier Shetland Islands 13.3°C
34 Scapa Flow Scotland 13.3°C
35 Lerwick Scotland 13.3°C
36 Sandwick Scotland 13.3°C
37 Castletown Highland Council 13.3°C
38 Muckle Skerry Orkney 13.4°C
39 Out Skerries Orkney 13.4°C
40 Stromness Scotland 13.4°C
41 Scrabster Highland Council 13.4°C
42 Thurso Scotland 13.4°C
43 Isle of Skye Scotland 13.5°C
44 Portree Scotland 13.5°C
45 Rockall Comhairle nan Eilean Siar 13.6°C
46 Aberdeen Scotland 13.6°C
47 Newtonhill Scotland 13.6°C
48 Portlethen Scotland 13.6°C
49 Kyle of Lochalsh Scotland 13.6°C
50 Mallaig Scotland 13.6°C

Warmest 10 in United Kingdom in August

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

# Location August mean
1 Bradwell on Sea Essex 19.6°C
2 Bramble Creek Essex 19.6°C
3 Burnham-on-Crouch Essex 19.6°C
4 Colchester Essex 19.6°C
5 Holliwell Point Essex 19.6°C
6 Maldon Essex 19.6°C
7 North Fambridge Essex 19.6°C
8 Osea Island Essex 19.6°C
9 Rochford Essex 19.6°C
10 Shivering Sand Essex 19.6°C

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