United Kingdom · Atlantic Europe
Durdle Door
Sea
67.5°F
Air
–
UV
–
Refreshing
18–23°C
More like this
Climate · monthly averages
Sea temperature by month
5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
43°F
46°F
50°F
54°F
57°F
61°F
64°F
68°F
72°F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
MinMin °F
4948.9
4747.1
4746.9
4948.5
5251.7
5656.4
6160.7
6362.9
6463.7
6160.6
5756.9
5252.2
AvgAvg °F
5049.7
4848.1
4848.0
5049.9
5353.4
5858.0
6262.0
6464.3
6464.3
6161.4
5757.5
5352.6
MaxMax °F
5050.2
4948.9
4949.1
5150.9
5454.2
5958.8
6363.2
6665.6
6565.4
6262.3
5858.3
5353.0
Warmest in August (64.3°F). Coldest in March (48.0°F). Rarely comfortable for swimming.
About Durdle Door
The Jurassic Coast, UNESCO-listed since 2001, has no more recognisable silhouette than Durdle Door – a natural Portland-limestone arch on the Dorset shore, eroded by the English Channel and rising some 30 metres above the water. Pebble-and-sand Durdle Door Beach curves directly beneath the arch, Man o'War Beach hugs the next cove east with its offshore rocks, and the near-circular Lulworth Cove sits a kilometre further along. Sea temperatures peak at a brisk 16–18 °C from July through September, with Bournemouth airport 45 minutes away via the A35.