Sea weather in Cornwall in England All the beach weather in Cornwall

All the essential weather information for enjoying the beach in Cornwall in England, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Cornwall over the next 7 days?

Discover the best moment to go to the beach in Cornwall in England this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Cornwall. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Saturday 18 July 202661°F to 70°Fdiscouraged
Sunday 19 July 202659°F to 67°Fdiscouraged
Monday 20 July 202661°F to 68°Fdiscouraged
Tuesday 21 July 202661°F to 67°Fdiscouraged
Wednesday 22 July 202661°F to 67°Fdiscouraged
Thursday 23 July 202661°F to 65°Fdiscouraged
Friday 24 July 202661°F to 70°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Cornwall

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 05:31 and will set at 21:22 on the beach(es) of Cornwall. The outside temperature will be a high of 70°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 18mph km/h (with gusts up to 24.2mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (63°F)17°C (62°F)17°C (63°F)20°C (68°F)18°C (65°F)21°C (70°F)16°C (62°F)17°C (63°F)
Perceived temperature17°C (63°F)17°C (62°F)17°C (63°F)20°C (68°F)18°C (65°F)21°C (70°F)16°C (62°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%81%75%61%63%57%64%76%
Barometric pressure1019 hPa1019 hPa1019 hPa1020 hPa1020 hPa1020 hPa1019 hPa1021 hPa
Cloud cover16%10%3%2%0%93%0%0%
Heat index17°C (63°F)17°C (62°F)17°C (63°F)20°C (68°F)18°C (65°F)24°C (76°F)16°C (62°F)17°C (63°F)
Dew point15°C (58°F)14°C (57°F)13°C (55°F)12°C (54°F)11°C (52°F)12°C (54°F)9°C (49°F)13°C (55°F)
Wind
Speed21km/h (13mph)23km/h (14mph)24km/h (15mph)17km/h (11mph)3km/h (2mph)21km/h (13mph)29km/h (18mph)26km/h (16mph)
Gusts23km/h (15mph)25km/h (15mph)39km/h (24mph)27km/h (17mph)5km/h (3mph)31km/h (19mph)31km/h (19mph)33km/h (20mph)
Direction 340°
NNW
340°
NNW
348°
NNW
11°
N
112°
ESE
342°
NNW
355°
N
352°
N
Wind chill17°C (63°F)17°C (62°F)17°C (63°F)20°C (68°F)18°C (65°F)21°C (70°F)16°C (62°F)17°C (63°F)
Waves
Height0.3m (1.0ft)0.3m (1.0ft)0.3m (1.0ft)0.3m (1.1ft)0.2m (0.8ft)0.5m (1.6ft)0.6m (1.9ft)0.5m (1.6ft)
Direction 349°
N
351°
N
356°
N
359°
N
356°
N
343°
NNW
356°
N
10°
N
Period4.8 sec.4.5 sec.4.3 sec.4.2 sec.4.1 sec.1.9 sec.3.5 sec.3.5 sec.
Significant height0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:32 and will set at 21:21 on the beach(es) of Cornwall. The outside temperature will be a high of 67°F t and a low of 59°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 21.1mph km/h (with gusts up to 29.2mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)18°C (65°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)
Perceived temperature16°C (61°F)18°C (65°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity86%82%82%74%67%57%55%70%
Barometric pressure1021 hPa1021 hPa1023 hPa1025 hPa1026 hPa1026 hPa1026 hPa1026 hPa
Cloud cover7%6%10%17%7%16%3%9%
Heat index16°C (61°F)18°C (65°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)
Dew point14°C (57°F)15°C (59°F)15°C (58°F)13°C (55°F)10°C (51°F)9°C (48°F)8°C (46°F)12°C (53°F)
Wind
Speed22km/h (14mph)23km/h (14mph)34km/h (21mph)33km/h (21mph)27km/h (17mph)13km/h (8mph)4km/h (2mph)16km/h (10mph)
Gusts40km/h (25mph)36km/h (22mph)47km/h (29mph)43km/h (27mph)39km/h (24mph)21km/h (13mph)8km/h (5mph)29km/h (18mph)
Direction
N
88°
E
99°
E
90°
E
95°
E
104°
ESE
339°
NNW

N
Wind chill16°C (61°F)18°C (65°F)18°C (64°F)17°C (63°F)17°C (62°F)17°C (63°F)17°C (62°F)17°C (63°F)
Waves
Height0.4m (1.3ft)0.6m (2.0ft)1.2m (3.8ft)1.2m (3.9ft)1.0m (3.3ft)0.9m (2.8ft)0.7m (2.2ft)0.5m (1.7ft)
Direction
N
72°
ENE
86°
E
86°
E
90°
E
92°
E
91°
E
90°
E
Period3.8 sec.3.9 sec.3.9 sec.3.9 sec.3.9 sec.5.9 sec.5.8 sec.5.6 sec.
Significant height0.7m (2.3ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.0m (3.3ft)1.3m (4.3ft)1.0m (3.3ft)0.8m (2.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:33 and will set at 21:20 on the beach(es) of Cornwall. The outside temperature will be a high of 68°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 22.4mph). Wave height will be up to 1.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (60°F)16°C (61°F)18°C (65°F)19°C (65°F)19°C (66°F)20°C (67°F)17°C (62°F)
Perceived temperature16°C (61°F)16°C (60°F)16°C (61°F)18°C (65°F)19°C (65°F)19°C (66°F)20°C (67°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%73%74%62%64%61%58%78%
Barometric pressure1026 hPa1026 hPa1026 hPa1027 hPa1027 hPa1027 hPa1027 hPa1028 hPa
Cloud cover15%9%23%7%5%5%7%7%
Heat index16°C (61°F)16°C (60°F)16°C (61°F)18°C (65°F)19°C (65°F)19°C (66°F)20°C (67°F)17°C (62°F)
Dew point11°C (53°F)11°C (51°F)11°C (53°F)11°C (52°F)11°C (53°F)11°C (52°F)11°C (52°F)13°C (55°F)
Wind
Speed20km/h (12mph)17km/h (10mph)15km/h (9mph)14km/h (9mph)9km/h (5mph)8km/h (5mph)13km/h (8mph)21km/h (13mph)
Gusts36km/h (23mph)30km/h (18mph)23km/h (14mph)21km/h (13mph)15km/h (9mph)15km/h (9mph)25km/h (15mph)36km/h (23mph)
Direction 355°
N

N
14°
NNE
61°
ENE
149°
SSE
243°
WSW
351°
N
343°
NNW
Wind chill16°C (61°F)16°C (60°F)16°C (61°F)18°C (65°F)19°C (65°F)19°C (66°F)20°C (67°F)17°C (62°F)
Waves
Height0.4m (1.4ft)0.3m (1.1ft)0.3m (0.9ft)0.2m (0.6ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.8ft)
Direction 89°
E
88°
E
87°
E
87°
E
89°
E
96°
E
99°
E
87°
E
Period5.3 sec.5.1 sec.4.9 sec.4.6 sec.4.4 sec.4.2 sec.4.1 sec.5.1 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:34 and will set at 21:19 on the beach(es) of Cornwall. The outside temperature will be a high of 67°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.2mph km/h (with gusts up to 21.8mph). Wave height will be up to 1ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)
Perceived temperature16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%82%76%71%73%70%64%80%
Barometric pressure1028 hPa1028 hPa1029 hPa1031 hPa1031 hPa1030 hPa1028 hPa1029 hPa
Cloud cover8%10%7%3%3%3%2%3%
Heat index16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)
Dew point13°C (55°F)13°C (56°F)13°C (56°F)13°C (55°F)12°C (54°F)11°C (53°F)10°C (50°F)14°C (57°F)
Wind
Speed16km/h (10mph)14km/h (9mph)19km/h (12mph)26km/h (16mph)17km/h (11mph)10km/h (6mph)12km/h (8mph)22km/h (14mph)
Gusts31km/h (19mph)27km/h (17mph)28km/h (17mph)35km/h (22mph)29km/h (18mph)18km/h (11mph)26km/h (16mph)28km/h (17mph)
Direction 358°
N

N
62°
ENE
100°
E
119°
ESE
169°
SSE
316°
NW
345°
NNW
Wind chill16°C (61°F)17°C (62°F)18°C (64°F)18°C (65°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (63°F)
Waves
Height0.3m (0.9ft)0.2m (0.7ft)0.2m (0.6ft)0.1m (0.5ft)0.2m (0.7ft)0.2m (0.6ft)0.2m (0.6ft)0.3m (1.0ft)
Direction 88°
E
89°
E
90°
E
89°
E
89°
E
96°
E
86°
E
56°
NE
Period4.8 sec.4.5 sec.4.3 sec.4.2 sec.2.0 sec.2.7 sec.3.3 sec.5.4 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.6m (2ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:36 and will set at 21:17 on the beach(es) of Cornwall. The outside temperature will be a high of 67°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 24.2mph km/h (with gusts up to 28.6mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)17°C (62°F)17°C (63°F)18°C (65°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Perceived temperature17°C (62°F)17°C (62°F)17°C (63°F)18°C (65°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%78%78%71%64%68%71%79%
Barometric pressure1028 hPa1026 hPa1025 hPa1024 hPa1024 hPa1023 hPa1022 hPa1023 hPa
Cloud cover6%5%30%48%21%10%8%4%
Heat index17°C (62°F)17°C (62°F)17°C (63°F)18°C (65°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Dew point14°C (57°F)13°C (55°F)13°C (56°F)13°C (56°F)12°C (54°F)13°C (55°F)12°C (54°F)13°C (56°F)
Wind
Speed21km/h (13mph)21km/h (13mph)22km/h (13mph)26km/h (16mph)26km/h (16mph)35km/h (22mph)39km/h (24mph)31km/h (19mph)
Gusts38km/h (24mph)33km/h (20mph)30km/h (19mph)35km/h (21mph)39km/h (24mph)40km/h (25mph)40km/h (25mph)46km/h (28mph)
Direction 343°
NNW
354°
N

N
359°
N
349°
N
353°
N
354°
N
356°
N
Wind chill17°C (62°F)17°C (62°F)17°C (63°F)18°C (65°F)19°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.3m (1.0ft)0.3m (1.0ft)0.4m (1.2ft)0.5m (1.8ft)0.7m (2.2ft)0.6m (2.0ft)
Direction 87°
E
88°
E
11°
NNE
14°
NNE

N

N
11°
N
11°
N
Period4.9 sec.4.7 sec.4.5 sec.4.3 sec.4.2 sec.4.0 sec.4.0 sec.4.0 sec.
Significant height0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.8m (2.6ft)1.0m (3.3ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:37 and will set at 21:16 on the beach(es) of Cornwall. The outside temperature will be a high of 65°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 19.3mph km/h (with gusts up to 27.3mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature17°C (62°F)16°C (60°F)17°C (62°F)18°C (65°F)18°C (64°F)16°C (61°F)17°C (62°F)18°C (64°F)
Perceived temperature17°C (62°F)16°C (60°F)17°C (62°F)18°C (65°F)18°C (64°F)16°C (61°F)17°C (62°F)18°C (64°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%86%81%76%72%71%64%78%
Barometric pressure1023 hPa1023 hPa1023 hPa1025 hPa1025 hPa1025 hPa1025 hPa1024 hPa
Cloud cover1%5%3%4%3%0%0%0%
Heat index17°C (62°F)16°C (60°F)17°C (62°F)18°C (65°F)18°C (64°F)16°C (61°F)17°C (62°F)18°C (64°F)
Dew point13°C (55°F)13°C (56°F)14°C (56°F)14°C (57°F)13°C (55°F)11°C (52°F)10°C (50°F)14°C (56°F)
Wind
Speed31km/h (19mph)23km/h (14mph)21km/h (13mph)15km/h (10mph)14km/h (9mph)15km/h (9mph)14km/h (9mph)10km/h (6mph)
Gusts44km/h (27mph)39km/h (24mph)30km/h (19mph)21km/h (13mph)24km/h (15mph)31km/h (19mph)30km/h (19mph)19km/h (12mph)
Direction 356°
N

N
41°
NE
83°
E
146°
SE
229°
SW
336°
NNW
334°
NNW
Wind chill17°C (62°F)16°C (60°F)17°C (62°F)18°C (65°F)18°C (64°F)16°C (61°F)17°C (62°F)18°C (64°F)
Waves
Height0.7m (2.3ft)0.6m (2.0ft)0.4m (1.3ft)0.3m (0.9ft)0.3m (1.1ft)0.4m (1.2ft)0.3m (1.1ft)0.3m (1.1ft)
Direction 22°
NNE
32°
NNE
44°
NE
68°
ENE
89°
E
92°
E
92°
E
93°
E
Period4.0 sec.4.0 sec.4.0 sec.4.0 sec.4.0 sec.2.2 sec.4.3 sec.4.5 sec.
Significant height1.3m (4.3ft)1.0m (3.3ft)0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:38 and will set at 21:15 on the beach(es) of Cornwall. The outside temperature will be a high of 70°F t and a low of 61°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 16.2mph km/h (with gusts up to 24.9mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (60°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)21°C (69°F)19°C (66°F)17°C (62°F)
Perceived temperature16°C (60°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)21°C (69°F)19°C (66°F)17°C (62°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity82%84%82%67%57%49%66%85%
Barometric pressure1026 hPa1025 hPa1025 hPa1025 hPa1024 hPa1023 hPa1022 hPa1022 hPa
Cloud cover2%1%0%2%8%9%8%29%
Heat index16°C (60°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)21°C (69°F)19°C (66°F)17°C (62°F)
Dew point13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)12°C (53°F)10°C (49°F)12°C (54°F)14°C (57°F)
Wind
Speed15km/h (10mph)15km/h (9mph)10km/h (6mph)6km/h (4mph)9km/h (6mph)22km/h (14mph)26km/h (16mph)19km/h (12mph)
Gusts29km/h (18mph)27km/h (17mph)17km/h (11mph)9km/h (6mph)17km/h (10mph)40km/h (25mph)26km/h (16mph)33km/h (21mph)
Direction 337°
NNW
339°
NNW
339°
NNW
298°
WNW
295°
WNW
339°
NNW
337°
NNW
321°
NW
Wind chill16°C (60°F)16°C (60°F)16°C (60°F)19°C (66°F)21°C (69°F)21°C (69°F)19°C (66°F)17°C (62°F)
Waves
Height0.3m (1.0ft)0.3m (0.9ft)0.3m (1.0ft)0.4m (1.4ft)0.5m (1.5ft)0.4m (1.5ft)0.4m (1.3ft)0.3m (1.1ft)
Direction 91°
E
90°
E
89°
E
91°
E
94°
E
97°
E
99°
E
100°
E
Period4.8 sec.2.4 sec.2.4 sec.2.4 sec.2.4 sec.2.4 sec.2.4 sec.2.4 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)16°C (60°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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