Sea weather in Isle of Portland in England All the beach weather in Isle of Portland

All the essential weather information for enjoying the beach in Isle of Portland 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 Isle of Portland over the next 7 days?

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

Date Outside temp. Our opinion
Saturday 15 March 202532°F to 45°Fdiscouraged
Sunday 16 March 202534°F to 45°Fdiscouraged
Monday 17 March 202540°F to 47°Fdiscouraged
Tuesday 18 March 202541°F to 47°Fdiscouraged
Wednesday 19 March 202547°F to 52°Fdiscouraged
Thursday 20 March 202549°F to 50°Fdiscouraged
Friday 21 March 202549°F to 52°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in Isle of Portland

Sea weather on Saturday 15 March 2025

On Saturday 15 March 2025, the sun will rise at 06:23 and will set at 18:15 on the beach(es) of Isle of Portland. The outside temperature will be a high of 45°F t and a low of 32°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 26.7mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature3°C (37°F)2°C (36°F)3°C (38°F)4°C (39°F)6°C (43°F)7°C (44°F)5°C (40°F)3°C (38°F)
Perceived temperature-2°C (29°F)-2°C (28°F)-2°C (29°F)-1°C (30°F)2°C (35°F)2°C (36°F)0°C (32°F)-2°C (29°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%92%83%82%58%58%67%73%
Barometric pressure1018 hPa1019 hPa1021 hPa1023 hPa1023 hPa1022 hPa1023 hPa1025 hPa
Cloud cover35%69%4%2%52%67%12%0%
Heat index3°C (37°F)2°C (36°F)3°C (38°F)4°C (39°F)6°C (43°F)7°C (44°F)5°C (40°F)3°C (38°F)
Dew point1°C (34°F)1°C (34°F)0°C (33°F)1°C (34°F)-1°C (30°F)-1°C (30°F)-1°C (30°F)-1°C (30°F)
Wind
Speed23km/h (14mph)22km/h (13mph)22km/h (14mph)26km/h (16mph)28km/h (17mph)31km/h (19mph)24km/h (15mph)23km/h (15mph)
Gusts39km/h (24mph)35km/h (22mph)35km/h (22mph)34km/h (21mph)38km/h (23mph)43km/h (27mph)30km/h (19mph)41km/h (26mph)
Direction 38°
NE
33°
NNE
32°
NNE
37°
NE
47°
NE
31°
NNE
23°
NNE
43°
NE
Wind chill-2°C (29°F)-2°C (28°F)-2°C (29°F)-1°C (30°F)2°C (35°F)2°C (36°F)0°C (32°F)-2°C (29°F)
Waves
Height0.8m (2.6ft)0.8m (2.7ft)0.9m (3.1ft)1.0m (3.4ft)1.0m (3.4ft)1.1m (3.5ft)1.0m (3.4ft)1.1m (3.5ft)
Direction 227°
SW
230°
SW
232°
SW
99°
E
96°
E
100°
E
99°
E
100°
E
Period14.4 sec.13.5 sec.5.3 sec.5.6 sec.12.5 sec.13.0 sec.5.9 sec.12.9 sec.
Significant height0.7m (2.3ft)0.6m (2ft)1.3m (4.3ft)1.4m (4.6ft)0.8m (2.6ft)0.9m (3ft)1.4m (4.6ft)0.9m (3ft)
Sea water temperature
Water temperature9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)

Sea weather on Sunday 16 March 2025

On Sunday 16 March 2025, the sun will rise at 06:21 and will set at 18:16 on the beach(es) of Isle of Portland. The outside temperature will be a high of 45°F t and a low of 34°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 17.4mph km/h (with gusts up to 26.1mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature2°C (35°F)1°C (33°F)1°C (33°F)4°C (39°F)6°C (44°F)6°C (44°F)7°C (44°F)7°C (44°F)
Perceived temperature-4°C (26°F)-5°C (23°F)-5°C (22°F)-1°C (30°F)2°C (36°F)3°C (37°F)3°C (37°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%82%80%71%66%68%62%70%
Barometric pressure1025 hPa1025 hPa1025 hPa1026 hPa1026 hPa1025 hPa1026 hPa1027 hPa
Cloud cover0%0%0%0%95%85%99%95%
Heat index2°C (35°F)1°C (33°F)1°C (33°F)4°C (39°F)6°C (44°F)6°C (44°F)7°C (44°F)7°C (44°F)
Dew point-2°C (29°F)-2°C (28°F)-3°C (27°F)-1°C (31°F)1°C (33°F)1°C (34°F)0°C (32°F)1°C (35°F)
Wind
Speed21km/h (13mph)24km/h (15mph)25km/h (16mph)28km/h (18mph)28km/h (17mph)23km/h (14mph)26km/h (16mph)21km/h (13mph)
Gusts36km/h (22mph)39km/h (24mph)42km/h (26mph)36km/h (22mph)38km/h (24mph)34km/h (21mph)41km/h (25mph)33km/h (21mph)
Direction 42°
NE
38°
NE
38°
NE
52°
NE
68°
ENE
55°
NE
62°
ENE
55°
NE
Wind chill-4°C (26°F)-5°C (23°F)-5°C (22°F)-1°C (30°F)2°C (36°F)3°C (37°F)3°C (37°F)3°C (37°F)
Waves
Height1.1m (3.7ft)1.1m (3.7ft)1.0m (3.3ft)1.0m (3.2ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (3.1ft)
Direction 101°
E
99°
E
96°
E
91°
E
93°
E
95°
E
95°
E
94°
E
Period12.1 sec.12.0 sec.11.7 sec.11.0 sec.10.8 sec.10.6 sec.10.1 sec.9.9 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.6ft)
Sea water temperature
Water temperature9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)

Sea weather on Monday 17 March 2025

On Monday 17 March 2025, the sun will rise at 06:19 and will set at 18:18 on the beach(es) of Isle of Portland. The outside temperature will be a high of 47°F t and a low of 40°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 22.4mph km/h (with gusts up to 28mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (42°F)5°C (40°F)5°C (40°F)7°C (44°F)7°C (45°F)4°C (40°F)6°C (42°F)
Perceived temperature2°C (36°F)2°C (35°F)-0°C (32°F)-0°C (31°F)3°C (37°F)3°C (38°F)-1°C (31°F)1°C (33°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%90%89%87%75%72%81%85%
Barometric pressure1026 hPa1026 hPa1025 hPa1026 hPa1025 hPa1023 hPa1022 hPa1022 hPa
Cloud cover98%99%32%75%75%34%2%13%
Heat index6°C (43°F)6°C (42°F)5°C (40°F)5°C (40°F)7°C (44°F)7°C (45°F)4°C (40°F)6°C (42°F)
Dew point3°C (38°F)4°C (39°F)3°C (37°F)3°C (37°F)3°C (37°F)3°C (37°F)1°C (34°F)3°C (38°F)
Wind
Speed20km/h (12mph)22km/h (13mph)27km/h (17mph)32km/h (20mph)30km/h (19mph)31km/h (19mph)30km/h (18mph)36km/h (22mph)
Gusts29km/h (18mph)32km/h (20mph)38km/h (24mph)41km/h (25mph)40km/h (25mph)45km/h (28mph)35km/h (22mph)37km/h (23mph)
Direction 59°
ENE
58°
ENE
61°
ENE
68°
ENE
77°
ENE
90°
E
87°
E
72°
ENE
Wind chill2°C (36°F)2°C (35°F)-0°C (32°F)-0°C (31°F)3°C (37°F)3°C (38°F)-1°C (31°F)1°C (33°F)
Waves
Height1.0m (3.3ft)0.9m (3.0ft)1.0m (3.3ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.7ft)1.3m (4.4ft)1.6m (5.2ft)
Direction 100°
E
100°
E
91°
E
93°
E
91°
E
101°
ESE
93°
E
98°
E
Period9.8 sec.9.0 sec.9.0 sec.9.0 sec.8.8 sec.8.5 sec.19.0 sec.19.0 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)1.3m (4.3ft)1.3m (4.3ft)
Sea water temperature
Water temperature9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)

Sea weather on Tuesday 18 March 2025

On Tuesday 18 March 2025, the sun will rise at 06:16 and will set at 18:20 on the beach(es) of Isle of Portland. The outside temperature will be a high of 47°F t and a low of 41°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 22.4mph km/h (with gusts up to 31.1mph). Wave height will be up to 5.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature6°C (43°F)6°C (44°F)6°C (44°F)8°C (46°F)8°C (46°F)7°C (45°F)6°C (42°F)7°C (44°F)
Perceived temperature1°C (34°F)2°C (35°F)2°C (35°F)3°C (37°F)3°C (37°F)3°C (37°F)1°C (34°F)3°C (38°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%87%86%79%74%74%82%88%
Barometric pressure1021 hPa1020 hPa1019 hPa1020 hPa1020 hPa1020 hPa1020 hPa1021 hPa
Cloud cover12%8%50%70%13%27%5%19%
Heat index6°C (43°F)6°C (44°F)6°C (44°F)8°C (46°F)8°C (46°F)7°C (45°F)6°C (42°F)7°C (44°F)
Dew point4°C (39°F)4°C (40°F)4°C (40°F)4°C (39°F)3°C (38°F)3°C (37°F)3°C (37°F)5°C (40°F)
Wind
Speed35km/h (22mph)32km/h (20mph)33km/h (21mph)36km/h (22mph)35km/h (22mph)32km/h (20mph)26km/h (16mph)18km/h (11mph)
Gusts41km/h (25mph)50km/h (31mph)50km/h (31mph)47km/h (29mph)50km/h (31mph)47km/h (29mph)32km/h (20mph)21km/h (13mph)
Direction 81°
E
91°
E
95°
E
105°
ESE
104°
ESE
102°
ESE
91°
E
81°
E
Wind chill1°C (34°F)2°C (35°F)2°C (35°F)3°C (37°F)3°C (37°F)3°C (37°F)1°C (34°F)3°C (38°F)
Waves
Height1.6m (5.3ft)1.6m (5.1ft)1.6m (5.4ft)1.8m (5.9ft)1.8m (6.1ft)1.8m (5.8ft)1.7m (5.7ft)1.6m (5.4ft)
Direction 99°
E
99°
E
100°
E
105°
ESE
104°
ESE
101°
ESE
99°
E
101°
E
Period18.0 sec.17.6 sec.16.5 sec.15.6 sec.14.7 sec.14.2 sec.13.6 sec.13.4 sec.
Significant height1.3m (4.3ft)1.2m (3.9ft)1.3m (4.3ft)1.5m (4.9ft)1.4m (4.6ft)1.3m (4.3ft)1.3m (4.3ft)1.1m (3.6ft)
Sea water temperature
Water temperature9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)9°C (48°F)

Sea weather on Wednesday 19 March 2025

On Wednesday 19 March 2025, the sun will rise at 06:14 and will set at 18:21 on the beach(es) of Isle of Portland. The outside temperature will be a high of 52°F t and a low of 47°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 21.1mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature8°C (47°F)9°C (47°F)9°C (48°F)10°C (50°F)11°C (51°F)11°C (51°F)9°C (48°F)9°C (49°F)
Perceived temperature6°C (43°F)7°C (44°F)6°C (44°F)7°C (45°F)8°C (47°F)8°C (46°F)6°C (44°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%91%91%87%82%83%90%92%
Barometric pressure1021 hPa1021 hPa1022 hPa1023 hPa1023 hPa1022 hPa1022 hPa1022 hPa
Cloud cover79%100%88%26%62%36%44%48%
Heat index8°C (47°F)9°C (47°F)9°C (48°F)10°C (50°F)11°C (51°F)11°C (51°F)9°C (48°F)9°C (49°F)
Dew point7°C (44°F)7°C (45°F)7°C (45°F)8°C (46°F)8°C (46°F)8°C (46°F)7°C (45°F)8°C (46°F)
Wind
Speed13km/h (8mph)13km/h (8mph)15km/h (9mph)19km/h (12mph)20km/h (13mph)21km/h (13mph)16km/h (10mph)14km/h (9mph)
Gusts26km/h (16mph)25km/h (16mph)28km/h (17mph)30km/h (18mph)31km/h (19mph)34km/h (21mph)33km/h (20mph)28km/h (18mph)
Direction 96°
E
99°
E
109°
ESE
112°
ESE
128°
SE
115°
ESE
101°
E
108°
ESE
Wind chill6°C (43°F)7°C (44°F)6°C (44°F)7°C (45°F)8°C (47°F)8°C (46°F)6°C (44°F)7°C (45°F)
Waves
Height1.3m (4.3ft)1.1m (3.5ft)0.9m (3.0ft)0.8m (2.6ft)0.7m (2.3ft)0.6m (2.0ft)0.6m (1.9ft)0.5m (1.8ft)
Direction 99°
E
229°
SW
229°
SW
230°
SW
228°
SW
227°
SW
227°
SW
226°
SW
Period13.1 sec.12.3 sec.12.0 sec.11.3 sec.11.0 sec.10.8 sec.10.2 sec.9.9 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.4m (1.3ft)
Sea water temperature
Water temperature7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)

Sea weather on Thursday 20 March 2025

On Thursday 20 March 2025, the sun will rise at 06:12 and will set at 18:23 on the beach(es) of Isle of Portland. The outside temperature will be a high of 50°F t and a low of 49°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 29.8mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (49°F)9°C (49°F)9°C (48°F)10°C (50°F)10°C (51°F)10°C (50°F)10°C (50°F)10°C (51°F)
Perceived temperature7°C (45°F)7°C (44°F)6°C (43°F)7°C (45°F)7°C (45°F)7°C (44°F)6°C (44°F)7°C (45°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity92%92%92%88%83%84%85%86%
Barometric pressure1021 hPa1020 hPa1019 hPa1019 hPa1017 hPa1015 hPa1013 hPa1011 hPa
Cloud cover63%19%23%50%53%20%34%30%
Heat index10°C (49°F)9°C (49°F)9°C (48°F)10°C (50°F)10°C (51°F)10°C (50°F)10°C (50°F)10°C (51°F)
Dew point8°C (47°F)8°C (46°F)8°C (46°F)8°C (47°F)8°C (46°F)7°C (45°F)7°C (45°F)8°C (47°F)
Wind
Speed15km/h (9mph)18km/h (11mph)22km/h (13mph)24km/h (15mph)31km/h (19mph)31km/h (19mph)29km/h (18mph)26km/h (16mph)
Gusts31km/h (20mph)21km/h (13mph)23km/h (14mph)38km/h (24mph)48km/h (30mph)32km/h (20mph)33km/h (20mph)29km/h (18mph)
Direction 102°
ESE
105°
ESE
106°
ESE
111°
ESE
112°
ESE
104°
ESE
98°
E
108°
ESE
Wind chill7°C (45°F)7°C (44°F)6°C (43°F)7°C (45°F)7°C (45°F)7°C (44°F)6°C (44°F)7°C (45°F)
Waves
Height0.5m (1.7ft)0.5m (1.8ft)0.7m (2.2ft)0.8m (2.6ft)0.9m (3.1ft)1.0m (3.3ft)1.0m (3.4ft)1.0m (3.3ft)
Direction 226°
SW
229°
SW
228°
SW
224°
SW
225°
SW
221°
SW
220°
SW
219°
SW
Period9.8 sec.9.4 sec.11.2 sec.10.8 sec.10.4 sec.11.3 sec.11.0 sec.10.9 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.4m (1.3ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)

Sea weather on Friday 21 March 2025

On Friday 21 March 2025, the sun will rise at 06:10 and will set at 18:25 on the beach(es) of Isle of Portland. The outside temperature will be a high of 52°F t and a low of 49°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 18.6mph km/h (with gusts up to 25.5mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (51°F)10°C (50°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (51°F)9°C (49°F)10°C (50°F)
Perceived temperature7°C (45°F)7°C (44°F)7°C (45°F)8°C (47°F)7°C (45°F)8°C (46°F)7°C (44°F)7°C (44°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%91%95%94%96%91%95%93%
Barometric pressure1009 hPa1008 hPa1007 hPa1007 hPa1006 hPa1004 hPa1004 hPa1002 hPa
Cloud cover51%100%79%100%100%63%79%73%
Heat index10°C (51°F)10°C (50°F)10°C (50°F)11°C (51°F)10°C (50°F)10°C (51°F)9°C (49°F)10°C (50°F)
Dew point8°C (47°F)9°C (47°F)9°C (49°F)10°C (49°F)9°C (49°F)9°C (48°F)9°C (48°F)9°C (48°F)
Wind
Speed28km/h (17mph)27km/h (17mph)25km/h (15mph)17km/h (10mph)17km/h (11mph)19km/h (12mph)18km/h (11mph)30km/h (19mph)
Gusts29km/h (18mph)27km/h (17mph)41km/h (26mph)26km/h (16mph)29km/h (18mph)33km/h (20mph)34km/h (21mph)36km/h (22mph)
Direction 117°
ESE
144°
SE
171°
S
148°
SSE
140°
SE
146°
SSE
116°
ESE
133°
SE
Wind chill7°C (45°F)7°C (44°F)7°C (45°F)8°C (47°F)7°C (45°F)8°C (46°F)7°C (44°F)7°C (44°F)
Waves
Height1.0m (3.4ft)1.1m (3.8ft)1.3m (4.2ft)1.4m (4.7ft)1.5m (5.0ft)1.4m (4.7ft)1.3m (4.3ft)1.3m (4.4ft)
Direction 218°
SW
218°
SW
217°
SW
143°
SE
160°
SSE
217°
SW
218°
SW
218°
SW
Period10.8 sec.10.7 sec.12.8 sec.12.0 sec.11.6 sec.6.0 sec.5.6 sec.11.1 sec.
Significant height0.7m (2.3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)0.6m (2ft)0.9m (3ft)1.0m (3.3ft)
Sea water temperature
Water temperature7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)7°C (44°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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