Where is the sea coldest in United Kingdom in September?

Fistral Beach in United Kingdom has the coldest sea in United Kingdom in September, averaging about 16.0 °C. Porthcurno (16.0 °C) and Sennen Cove are the next coolest.

How many beaches in United Kingdom are warm enough to swim in September?

None of the top 25 ranked beaches in United Kingdom reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.

How are these September sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Coldest sea temperature in United Kingdom in September

Where the sea is coolest across United Kingdom during September, ranked by long-term monthly average water temperature. Fistral Beach (Cornwall, United Kingdom) is the coolest at around 16°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
Fistral Beach
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
2
Porthcurno
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
3
Sennen Cove
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
4
Kynance Cove
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
5
Polzeath
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
6
Perranporth
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
7
Porthmeor
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
8
Praa Sands
Cornwall · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
9
Woolacombe
Devon · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
10
Croyde Bay
Devon · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
11
Saunton Sands
Devon · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
12
Bantham
Devon · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
13
Blackpool Sands
Devon · United Kingdom · Celtic Sea
Cool — shorty wetsuit recommended
16°C
September average
14
Bournemouth Beach
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
15
Sandbanks
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
16
Studland
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
17
Durdle Door
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
18
Weymouth Beach
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
19
West Wittering
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
20
Camber Sands
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
21
Brighton Beach
Dorset & South Coast · United Kingdom · English Channel
Cool — shorty wetsuit recommended
16°C
September average
22
Holkham
East Coast · United Kingdom · North Sea
Cool — shorty wetsuit recommended
16°C
September average
23
Cromer Beach
East Coast · United Kingdom · North Sea
Cool — shorty wetsuit recommended
16°C
September average
24
Whitby
East Coast · United Kingdom · North Sea
Cool — shorty wetsuit recommended
16°C
September average
25
Scarborough South Bay
East Coast · United Kingdom · North Sea
Cool — shorty wetsuit recommended
16°C
September average

Coldest sea in September elsewhere

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United Kingdom in September — frequently asked questions

Where is the sea coldest in United Kingdom in September?: Fistral Beach in United Kingdom has the coldest sea in United Kingdom in September, averaging about 16.0 °C. Porthcurno (16.0 °C) and Sennen Cove are the next coolest.
How many beaches in United Kingdom are warm enough to swim in September?: None of the top 25 ranked beaches in United Kingdom reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
How are these September sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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