Sea weather in Cape Cod National Seashore in the United States (USA) All the beach weather in Cape Cod National Seashore

All the essential weather information for enjoying the beach in Cape Cod National Seashore in the United States (USA), 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 Cape Cod National Seashore over the next 7 days?

Discover the best moment to go to the beach in Cape Cod National Seashore in the United States (USA) this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Cape Cod National Seashore. 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 202668°F to 72°Fnot recommended
Sunday 19 July 202665°F to 70°Fnot recommended
Monday 20 July 202667°F to 72°Fdiscouraged
Tuesday 21 July 202668°F to 70°Fdiscouraged
Wednesday 22 July 202670°F to 74°Fdiscouraged
Thursday 23 July 202661°F to 68°Fdiscouraged
Friday 24 July 202661°F to 68°Frecommended

Sea Weather: Your daily and hourly sea weather in Cape Cod National Seashore

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 05:21 and will set at 20:12 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 72°F t and a low of 68°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 28mph km/h (with gusts up to 28.6mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (68°F)20°C (67°F)20°C (68°F)22°C (71°F)22°C (71°F)22°C (72°F)21°C (69°F)21°C (70°F)
Perceived temperature20°C (68°F)20°C (67°F)20°C (68°F)22°C (71°F)22°C (71°F)25°C (76°F)21°C (69°F)21°C (70°F)
Precipitation0in0in0in0in0in0in0in0.1in
Humidity77%85%74%69%66%73%87%95%
Barometric pressure1017 hPa1016 hPa1016 hPa1015 hPa1013 hPa1010 hPa1006 hPa1004 hPa
Cloud cover3%2%10%23%11%50%97%100%
Heat index20°C (68°F)20°C (67°F)20°C (68°F)25°C (76°F)25°C (76°F)25°C (76°F)21°C (69°F)24°C (75°F)
Dew point16°C (61°F)17°C (63°F)15°C (59°F)16°C (61°F)15°C (59°F)17°C (63°F)18°C (65°F)20°C (68°F)
Wind
Speed21km/h (13mph)14km/h (9mph)19km/h (12mph)22km/h (13mph)31km/h (19mph)40km/h (25mph)42km/h (26mph)45km/h (28mph)
Gusts39km/h (24mph)27km/h (17mph)37km/h (23mph)27km/h (17mph)37km/h (23mph)46km/h (29mph)43km/h (27mph)46km/h (28mph)
Direction 185°
S
224°
SW
222°
SW
202°
SSW
192°
SSW
207°
SSW
198°
SSW
213°
SSW
Wind chill20°C (68°F)20°C (67°F)20°C (68°F)22°C (71°F)22°C (71°F)22°C (72°F)21°C (69°F)21°C (70°F)
Waves
Height0.3m (0.9ft)0.3m (0.9ft)0.3m (1.0ft)0.3m (1.1ft)0.5m (1.7ft)0.9m (3.0ft)0.9m (3.1ft)1.1m (3.7ft)
Direction 99°
E
100°
E
101°
E
101°
E
101°
E
218°
SW
207°
SSW
207°
SSW
Period14.1 sec.8.6 sec.8.5 sec.13.6 sec.13.5 sec.13.4 sec.13.4 sec.13.3 sec.
Significant height0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.8m (2.6ft)1.4m (4.6ft)1.3m (4.3ft)1.6m (5.2ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 05:22 and will set at 20:11 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 70°F t and a low of 65°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! Be careful, the sea will be generally rough with a wind speed of up to 31.1mph km/h (with gusts up to 34.8mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (71°F)21°C (71°F)21°C (70°F)20°C (68°F)18°C (64°F)18°C (64°F)20°C (68°F)21°C (70°F)
Perceived temperature21°C (71°F)21°C (71°F)21°C (70°F)20°C (68°F)18°C (64°F)18°C (64°F)20°C (68°F)21°C (70°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%95%93%79%75%69%68%67%
Barometric pressure1002 hPa1001 hPa1003 hPa1005 hPa1007 hPa1007 hPa1009 hPa1011 hPa
Cloud cover53%79%41%0%0%0%8%3%
Heat index24°C (76°F)24°C (76°F)24°C (75°F)20°C (68°F)18°C (64°F)18°C (64°F)20°C (68°F)21°C (70°F)
Dew point20°C (67°F)21°C (69°F)20°C (68°F)16°C (61°F)13°C (56°F)12°C (53°F)14°C (57°F)15°C (58°F)
Wind
Speed50km/h (31mph)39km/h (24mph)32km/h (20mph)36km/h (22mph)23km/h (15mph)13km/h (8mph)1km/h (1mph)15km/h (9mph)
Gusts56km/h (35mph)42km/h (26mph)34km/h (21mph)52km/h (32mph)29km/h (18mph)26km/h (16mph)2km/h (1mph)30km/h (19mph)
Direction 221°
SW
234°
SW
270°
W
312°
NW
311°
NW
328°
NNW
213°
SSW
335°
NNW
Wind chill21°C (71°F)21°C (71°F)21°C (70°F)20°C (68°F)18°C (64°F)18°C (64°F)20°C (68°F)21°C (70°F)
Waves
Height1.2m (4.1ft)1.1m (3.7ft)0.8m (2.5ft)1.1m (3.6ft)0.8m (2.8ft)0.6m (2.1ft)0.6m (1.8ft)0.5m (1.7ft)
Direction 233°
SW
234°
SW
237°
WSW
310°
NW
316°
NW
324°
NW
333°
NNW

N
Period13.1 sec.6.0 sec.6.1 sec.6.1 sec.6.2 sec.6.8 sec.4.1 sec.4.5 sec.
Significant height1.5m (4.9ft)1.3m (4.3ft)0.8m (2.6ft)1.3m (4.3ft)0.5m (1.6ft)0.4m (1.3ft)0.1m (0.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 05:23 and will set at 20:10 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 72°F t and a low of 67°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 21.1mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)20°C (68°F)22°C (72°F)20°C (69°F)20°C (69°F)
Perceived temperature20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)20°C (68°F)25°C (76°F)20°C (69°F)20°C (69°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity68%69%68%62%59%56%67%80%
Barometric pressure1012 hPa1013 hPa1014 hPa1015 hPa1015 hPa1015 hPa1015 hPa1016 hPa
Cloud cover5%5%2%3%5%5%8%6%
Heat index20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)20°C (68°F)25°C (76°F)20°C (69°F)20°C (69°F)
Dew point14°C (57°F)14°C (56°F)13°C (56°F)12°C (53°F)12°C (53°F)13°C (56°F)14°C (57°F)17°C (62°F)
Wind
Speed19km/h (12mph)15km/h (9mph)16km/h (10mph)16km/h (10mph)6km/h (4mph)23km/h (14mph)26km/h (16mph)24km/h (15mph)
Gusts34km/h (21mph)24km/h (15mph)26km/h (16mph)27km/h (17mph)14km/h (8mph)25km/h (16mph)28km/h (17mph)28km/h (18mph)
Direction 327°
NNW
301°
WNW
273°
W
286°
WNW
233°
SW
176°
S
193°
SSW
200°
SSW
Wind chill20°C (68°F)20°C (67°F)19°C (67°F)19°C (67°F)20°C (68°F)22°C (72°F)20°C (69°F)20°C (69°F)
Waves
Height0.6m (2.1ft)0.6m (1.9ft)0.5m (1.6ft)0.4m (1.4ft)0.4m (1.2ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.5ft)
Direction 352°
N
357°
N
355°
N
139°
SE
139°
SE
141°
SE
166°
SSE
103°
ESE
Period7.5 sec.7.6 sec.7.8 sec.3.6 sec.8.4 sec.3.3 sec.7.8 sec.7.5 sec.
Significant height0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.1m (0.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 05:24 and will set at 20:09 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 70°F t and a low of 68°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 21.8mph km/h (with gusts up to 24.2mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (69°F)21°C (69°F)21°C (70°F)21°C (70°F)20°C (69°F)20°C (68°F)20°C (68°F)20°C (69°F)
Perceived temperature21°C (69°F)21°C (69°F)21°C (70°F)21°C (70°F)20°C (69°F)20°C (68°F)20°C (68°F)20°C (69°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%80%83%79%78%84%90%95%
Barometric pressure1016 hPa1015 hPa1016 hPa1016 hPa1015 hPa1013 hPa1011 hPa1008 hPa
Cloud cover8%100%17%5%8%50%92%69%
Heat index21°C (69°F)21°C (69°F)21°C (70°F)24°C (76°F)20°C (69°F)20°C (68°F)20°C (68°F)20°C (69°F)
Dew point18°C (64°F)17°C (63°F)18°C (64°F)17°C (63°F)16°C (62°F)17°C (63°F)18°C (65°F)20°C (67°F)
Wind
Speed22km/h (14mph)23km/h (14mph)20km/h (13mph)31km/h (19mph)30km/h (18mph)30km/h (19mph)26km/h (16mph)35km/h (21mph)
Gusts37km/h (23mph)38km/h (24mph)33km/h (20mph)33km/h (20mph)36km/h (23mph)37km/h (23mph)33km/h (20mph)39km/h (24mph)
Direction 185°
S
202°
SSW
181°
S
165°
SSE
158°
SSE
145°
SE
130°
SE
132°
SE
Wind chill21°C (69°F)21°C (69°F)21°C (70°F)21°C (70°F)20°C (69°F)20°C (68°F)20°C (68°F)20°C (69°F)
Waves
Height0.4m (1.4ft)0.4m (1.3ft)0.4m (1.3ft)0.5m (1.6ft)0.7m (2.2ft)0.7m (2.3ft)0.7m (2.2ft)0.8m (2.5ft)
Direction 103°
ESE
102°
ESE
141°
SE
156°
SSE
148°
SSE
139°
SE
132°
SE
127°
SE
Period7.2 sec.7.0 sec.6.8 sec.11.6 sec.11.6 sec.8.0 sec.8.0 sec.7.6 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)17°C (62°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 05:25 and will set at 20:08 on the beach(es) of Cape Cod National Seashore. The outside temperature will be a high of 74°F t and a low of 70°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 24.9mph km/h (with gusts up to 28.6mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (71°F)22°C (72°F)22°C (71°F)22°C (72°F)22°C (72°F)23°C (73°F)23°C (73°F)22°C (71°F)
Perceived temperature22°C (71°F)25°C (76°F)22°C (71°F)25°C (76°F)25°C (76°F)25°C (77°F)25°C (77°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity93%87%92%88%85%81%81%87%
Barometric pressure1005 hPa1004 hPa1004 hPa1003 hPa1004 hPa1004 hPa1006 hPa1008 hPa
Cloud cover66%67%53%52%10%30%72%36%
Heat index24°C (76°F)25°C (76°F)24°C (76°F)25°C (76°F)25°C (76°F)25°C (77°F)25°C (77°F)24°C (76°F)
Dew point21°C (69°F)20°C (68°F)20°C (68°F)20°C (68°F)19°C (67°F)19°C (67°F)19°C (67°F)19°C (67°F)
Wind
Speed27km/h (17mph)39km/h (24mph)40km/h (25mph)37km/h (23mph)30km/h (18mph)33km/h (20mph)32km/h (20mph)25km/h (16mph)
Gusts34km/h (21mph)46km/h (29mph)41km/h (26mph)39km/h (24mph)32km/h (20mph)33km/h (21mph)38km/h (24mph)26km/h (16mph)
Direction 182°
S
204°
SSW
204°
SSW
214°
SW
216°
SW
214°
SW
211°
SSW
239°
WSW
Wind chill22°C (71°F)22°C (72°F)22°C (71°F)22°C (72°F)22°C (72°F)23°C (73°F)23°C (73°F)22°C (71°F)
Waves
Height0.9m (2.9ft)1.2m (3.8ft)1.6m (5.2ft)1.4m (4.7ft)1.2m (4.0ft)1.3m (4.2ft)1.2m (3.9ft)1.1m (3.7ft)
Direction 128°
SE
138°
SE
175°
S
204°
SSW
143°
SE
141°
SE
137°
SE
138°
SE
Period8.0 sec.11.1 sec.11.1 sec.6.8 sec.7.8 sec.8.4 sec.9.6 sec.9.7 sec.
Significant height1.0m (3.3ft)1.1m (3.6ft)1.9m (6.2ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 05:25 and will set at 20:07 on the beach(es) of Cape Cod National Seashore. 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 19.9mph km/h (with gusts up to 26.7mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (69°F)19°C (67°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (61°F)18°C (64°F)19°C (66°F)
Perceived temperature20°C (69°F)19°C (67°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (61°F)18°C (64°F)19°C (66°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%78%65%74%66%60%66%68%
Barometric pressure1010 hPa1011 hPa1013 hPa1015 hPa1016 hPa1016 hPa1016 hPa1017 hPa
Cloud cover25%49%46%15%0%0%6%7%
Heat index20°C (69°F)19°C (67°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (61°F)18°C (64°F)19°C (66°F)
Dew point16°C (61°F)15°C (60°F)12°C (53°F)14°C (56°F)11°C (51°F)9°C (47°F)11°C (52°F)13°C (55°F)
Wind
Speed27km/h (17mph)24km/h (15mph)32km/h (20mph)23km/h (14mph)16km/h (10mph)18km/h (11mph)20km/h (13mph)15km/h (10mph)
Gusts41km/h (25mph)33km/h (21mph)43km/h (27mph)31km/h (19mph)28km/h (17mph)27km/h (17mph)23km/h (14mph)23km/h (14mph)
Direction 308°
NW
306°
NW
339°
NNW
125°
SE
30°
NNE
96°
E
133°
SE
197°
SSW
Wind chill20°C (69°F)19°C (67°F)18°C (65°F)18°C (65°F)17°C (63°F)16°C (61°F)18°C (64°F)19°C (66°F)
Waves
Height1.0m (3.4ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 139°
SE
139°
SE
139°
SE
138°
SE
138°
SE
136°
SE
131°
SE
130°
SE
Period9.8 sec.9.7 sec.9.6 sec.9.6 sec.9.4 sec.8.7 sec.7.9 sec.7.4 sec.
Significant height0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature17°C (62°F)17°C (62°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 05:26 and will set at 20:07 on the beach(es) of Cape Cod National Seashore. 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 8.7mph km/h (with gusts up to 18.6mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature20°C (67°F)19°C (67°F)19°C (67°F)20°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)18°C (65°F)
Perceived temperature20°C (67°F)19°C (67°F)19°C (67°F)20°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)18°C (65°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity71%71%70%68%65%64%70%73%
Barometric pressure1018 hPa1019 hPa1020 hPa1021 hPa1021 hPa1020 hPa1020 hPa1020 hPa
Cloud cover8%9%6%4%2%1%0%2%
Heat index20°C (67°F)19°C (67°F)19°C (67°F)20°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)18°C (65°F)
Dew point14°C (57°F)14°C (57°F)14°C (56°F)14°C (57°F)12°C (54°F)11°C (51°F)11°C (52°F)13°C (56°F)
Wind
Speed11km/h (7mph)11km/h (7mph)6km/h (4mph)6km/h (4mph)9km/h (5mph)13km/h (8mph)14km/h (9mph)14km/h (9mph)
Gusts18km/h (11mph)17km/h (11mph)10km/h (6mph)9km/h (6mph)17km/h (10mph)27km/h (17mph)30km/h (19mph)26km/h (16mph)
Direction 268°
W
299°
WNW
127°
SE
80°
E
79°
ENE
70°
ENE
88°
E
98°
E
Wind chill20°C (67°F)19°C (67°F)19°C (67°F)20°C (67°F)19°C (66°F)18°C (64°F)17°C (62°F)18°C (65°F)
Waves
Height0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.8m (2.6ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)
Direction 131°
SE
132°
SE
129°
SE
128°
SE
128°
SE
128°
SE
126°
SE
126°
SE
Period7.7 sec.7.8 sec.7.6 sec.7.5 sec.7.4 sec.7.3 sec.7.3 sec.7.3 sec.
Significant height0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.5m (1.6ft)0.4m (1.3ft)
Sea water temperature
Water temperature19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)19°C (66°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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