Sea weather in San Sebastian in Puerto Rico All the beach weather in San Sebastian

All the essential weather information for enjoying the beach in San Sebastian in Puerto Rico, 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 San Sebastian over the next 7 days?

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

Date Outside temp. Our opinion
Sunday 19 July 202677°F to 85°Fdiscouraged
Monday 20 July 202677°F to 85°Fdiscouraged
Tuesday 21 July 202676°F to 83°Fdiscouraged
Wednesday 22 July 202676°F to 83°Frecommended
Thursday 23 July 202677°F to 83°Frecommended
Friday 24 July 202676°F to 83°Frecommended
Saturday 25 July 202679°F to 83°Fdiscouraged

Sea Weather: Your daily and hourly sea weather in San Sebastian

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 06:02 and will set at 19:08 on the beach(es) of San Sebastian. The outside temperature will be a high of 85°F t and a low of 77°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 20.5mph km/h (with gusts up to 30.5mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (83°F)27°C (80°F)
Perceived temperature29°C (84°F)28°C (83°F)29°C (83°F)30°C (87°F)31°C (89°F)32°C (89°F)32°C (89°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%74%82%71%69%71%74%79%
Barometric pressure1017 hPa1016 hPa1016 hPa1017 hPa1016 hPa1015 hPa1014 hPa1016 hPa
Cloud cover80%0%4%5%79%60%89%2%
Heat index29°C (84°F)28°C (83°F)29°C (83°F)30°C (87°F)31°C (89°F)32°C (89°F)32°C (89°F)30°C (86°F)
Dew point22°C (71°F)21°C (70°F)23°C (73°F)22°C (71°F)22°C (72°F)23°C (73°F)23°C (73°F)23°C (73°F)
Wind
Speed21km/h (13mph)16km/h (10mph)21km/h (13mph)16km/h (10mph)17km/h (11mph)20km/h (13mph)25km/h (15mph)33km/h (20mph)
Gusts33km/h (20mph)26km/h (16mph)33km/h (20mph)21km/h (13mph)25km/h (16mph)30km/h (19mph)36km/h (22mph)49km/h (30mph)
Direction 85°
E
79°
E
80°
E
84°
E
34°
NE
57°
ENE
65°
ENE
74°
ENE
Wind chill26°C (79°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (83°F)28°C (83°F)28°C (83°F)27°C (80°F)
Waves
Height1.0m (3.3ft)1.0m (3.4ft)1.0m (3.4ft)1.0m (3.2ft)1.0m (3.2ft)1.1m (3.7ft)1.3m (4.2ft)1.3m (4.2ft)
Direction 52°
NE
53°
NE
55°
NE
55°
NE
56°
NE
56°
NE
60°
ENE
60°
ENE
Period7.5 sec.7.5 sec.6.4 sec.6.3 sec.6.1 sec.6.2 sec.6.4 sec.5.6 sec.
Significant height0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)1.1m (3.6ft)1.0m (3.3ft)1.3m (4.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)27°C (80°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:02 and will set at 19:08 on the beach(es) of San Sebastian. The outside temperature will be a high of 85°F t and a low of 77°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 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature27°C (80°F)26°C (79°F)26°C (78°F)28°C (82°F)25°C (77°F)28°C (82°F)27°C (81°F)27°C (80°F)
Perceived temperature29°C (85°F)29°C (83°F)28°C (83°F)30°C (87°F)27°C (80°F)31°C (87°F)30°C (86°F)30°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity77%75%79%70%70%71%74%81%
Barometric pressure1016 hPa1015 hPa1015 hPa1016 hPa1016 hPa1015 hPa1015 hPa1016 hPa
Cloud cover3%3%2%0%7%72%29%6%
Heat index29°C (85°F)29°C (83°F)28°C (83°F)30°C (87°F)27°C (80°F)31°C (87°F)30°C (86°F)30°C (85°F)
Dew point22°C (72°F)21°C (71°F)22°C (71°F)22°C (71°F)19°C (66°F)22°C (72°F)22°C (72°F)23°C (74°F)
Wind
Speed25km/h (15mph)18km/h (11mph)20km/h (13mph)19km/h (12mph)22km/h (13mph)21km/h (13mph)21km/h (13mph)28km/h (18mph)
Gusts37km/h (23mph)29km/h (18mph)31km/h (19mph)25km/h (15mph)28km/h (17mph)31km/h (19mph)31km/h (19mph)42km/h (26mph)
Direction 85°
E
87°
E
85°
E
74°
ENE
37°
NE
52°
NE
62°
ENE
70°
ENE
Wind chill27°C (80°F)26°C (79°F)26°C (78°F)28°C (82°F)25°C (77°F)28°C (82°F)27°C (81°F)27°C (80°F)
Waves
Height1.2m (3.8ft)0.9m (3.0ft)0.9m (2.9ft)0.9m (2.9ft)1.1m (3.5ft)1.0m (3.2ft)0.9m (3.1ft)1.0m (3.3ft)
Direction 59°
ENE
56°
NE
56°
NE
56°
ENE
52°
NE
55°
NE
56°
NE
57°
ENE
Period5.6 sec.8.0 sec.7.9 sec.5.4 sec.5.4 sec.5.6 sec.5.4 sec.5.3 sec.
Significant height1.1m (3.6ft)0.9m (3ft)0.8m (2.6ft)0.9m (3ft)1.3m (4.3ft)1.0m (3.3ft)0.9m (3ft)1.1m (3.6ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:03 and will set at 19:07 on the beach(es) of San Sebastian. The outside temperature will be a high of 83°F t and a low of 76°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 14.3mph km/h (with gusts up to 22.4mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)25°C (78°F)25°C (77°F)28°C (82°F)27°C (81°F)28°C (82°F)27°C (81°F)27°C (80°F)
Perceived temperature29°C (84°F)28°C (82°F)27°C (81°F)30°C (86°F)30°C (86°F)30°C (87°F)30°C (86°F)30°C (85°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%82%79%67%72%72%75%82%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1015 hPa1014 hPa1013 hPa1014 hPa
Cloud cover9%75%5%1%77%75%76%78%
Heat index29°C (84°F)28°C (82°F)27°C (81°F)30°C (86°F)30°C (86°F)30°C (87°F)30°C (86°F)30°C (85°F)
Dew point23°C (73°F)22°C (72°F)21°C (70°F)21°C (70°F)22°C (71°F)22°C (72°F)22°C (72°F)23°C (74°F)
Wind
Speed22km/h (13mph)19km/h (12mph)16km/h (10mph)21km/h (13mph)23km/h (14mph)15km/h (9mph)14km/h (9mph)17km/h (11mph)
Gusts32km/h (20mph)30km/h (18mph)25km/h (16mph)27km/h (17mph)36km/h (22mph)21km/h (13mph)20km/h (13mph)26km/h (16mph)
Direction 77°
ENE
79°
E
89°
E
66°
ENE
30°
NNE
58°
ENE
60°
ENE
66°
ENE
Wind chill26°C (79°F)25°C (78°F)25°C (77°F)28°C (82°F)27°C (81°F)28°C (82°F)27°C (81°F)27°C (80°F)
Waves
Height0.9m (3.0ft)0.8m (2.7ft)0.7m (2.4ft)0.7m (2.3ft)0.8m (2.6ft)0.8m (2.7ft)0.7m (2.4ft)0.7m (2.2ft)
Direction 56°
NE
55°
NE
52°
NE
49°
NE
45°
NE
41°
NE
58°
ENE
59°
ENE
Period7.2 sec.6.7 sec.6.6 sec.6.8 sec.5.7 sec.5.8 sec.7.2 sec.7.2 sec.
Significant height0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:03 and will set at 19:07 on the beach(es) of San Sebastian. The outside temperature will be a high of 83°F t and a low of 76°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 10.6mph km/h (with gusts up to 16.2mph). Wave height will be up to 2.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (78°F)25°C (78°F)25°C (77°F)27°C (80°F)27°C (81°F)28°C (82°F)28°C (82°F)27°C (81°F)
Perceived temperature29°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)30°C (86°F)30°C (86°F)30°C (87°F)30°C (85°F)
Precipitation0in0in0in0in0in0.1in0in0in
Humidity84%83%82%72%71%71%71%74%
Barometric pressure1014 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1013 hPa1014 hPa
Cloud cover82%5%71%4%70%68%77%24%
Heat index29°C (83°F)28°C (82°F)27°C (81°F)29°C (84°F)30°C (86°F)30°C (86°F)30°C (87°F)30°C (85°F)
Dew point23°C (73°F)22°C (72°F)22°C (71°F)21°C (70°F)22°C (71°F)22°C (71°F)22°C (72°F)22°C (72°F)
Wind
Speed17km/h (11mph)13km/h (8mph)10km/h (6mph)6km/h (4mph)4km/h (2mph)10km/h (6mph)9km/h (6mph)5km/h (3mph)
Gusts26km/h (16mph)20km/h (12mph)15km/h (9mph)9km/h (5mph)6km/h (4mph)15km/h (9mph)17km/h (11mph)8km/h (5mph)
Direction 86°
E
97°
E
105°
ESE
134°
SE
271°
W
11°
N

N
147°
SSE
Wind chill26°C (78°F)25°C (78°F)25°C (77°F)27°C (80°F)27°C (81°F)28°C (82°F)28°C (82°F)27°C (81°F)
Waves
Height0.7m (2.2ft)0.6m (2.1ft)0.6m (2.0ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (1.9ft)0.6m (2.0ft)0.7m (2.3ft)
Direction 57°
ENE
53°
NE
50°
NE
47°
NE
45°
NE
46°
NE
49°
NE
48°
NE
Period5.7 sec.5.9 sec.5.9 sec.5.9 sec.6.0 sec.6.0 sec.6.7 sec.6.2 sec.
Significant height0.6m (2ft)0.8m (2.6ft)1.0m (3.3ft)0.8m (2.6ft)0.8m (2.6ft)0.6m (2ft)0.8m (2.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:03 and will set at 19:07 on the beach(es) of San Sebastian. The outside temperature will be a high of 83°F t and a low of 77°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 8.1mph km/h (with gusts up to 11.8mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)26°C (78°F)25°C (78°F)27°C (80°F)28°C (82°F)28°C (82°F)28°C (82°F)27°C (80°F)
Perceived temperature28°C (83°F)28°C (82°F)27°C (81°F)29°C (85°F)30°C (86°F)30°C (87°F)31°C (87°F)29°C (85°F)
Precipitation0in0in0in0in0.1in0in0in0in
Humidity80%80%78%71%70%67%71%77%
Barometric pressure1015 hPa1014 hPa1015 hPa1016 hPa1016 hPa1014 hPa1014 hPa1016 hPa
Cloud cover9%7%4%83%92%73%84%78%
Heat index28°C (83°F)28°C (82°F)27°C (81°F)29°C (85°F)30°C (86°F)30°C (87°F)31°C (87°F)29°C (85°F)
Dew point22°C (72°F)22°C (71°F)21°C (70°F)21°C (70°F)22°C (71°F)21°C (70°F)22°C (72°F)22°C (72°F)
Wind
Speed10km/h (6mph)11km/h (7mph)8km/h (5mph)13km/h (8mph)9km/h (5mph)3km/h (2mph)13km/h (8mph)6km/h (4mph)
Gusts16km/h (10mph)17km/h (11mph)13km/h (8mph)17km/h (10mph)12km/h (8mph)5km/h (3mph)19km/h (12mph)10km/h (6mph)
Direction 115°
ESE
106°
ESE
102°
ESE
86°
E
100°
E
126°
SE
29°
NNE
202°
SSW
Wind chill26°C (79°F)26°C (78°F)25°C (78°F)27°C (80°F)28°C (82°F)28°C (82°F)28°C (82°F)27°C (80°F)
Waves
Height0.7m (2.5ft)0.7m (2.4ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.4ft)0.7m (2.5ft)0.8m (2.8ft)0.9m (3.1ft)
Direction 50°
NE
48°
NE
49°
NE
50°
NE
52°
NE
54°
NE
59°
ENE
62°
ENE
Period6.2 sec.6.6 sec.6.8 sec.6.9 sec.7.0 sec.7.0 sec.6.6 sec.6.4 sec.
Significant height1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.2m (3.9ft)1.2m (3.9ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 06:04 and will set at 19:06 on the beach(es) of San Sebastian. The outside temperature will be a high of 83°F t and a low of 76°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 10.6mph km/h (with gusts up to 16.2mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)25°C (77°F)25°C (76°F)25°C (77°F)25°C (77°F)28°C (82°F)28°C (82°F)27°C (81°F)
Perceived temperature28°C (83°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (81°F)31°C (88°F)32°C (89°F)31°C (88°F)
Precipitation0in0in0in0in0in0.1in0in0in
Humidity79%78%77%70%69%74%76%80%
Barometric pressure1017 hPa1016 hPa1016 hPa1017 hPa1017 hPa1016 hPa1016 hPa1017 hPa
Cloud cover0%0%0%2%14%35%30%8%
Heat index28°C (83°F)27°C (81°F)27°C (80°F)27°C (80°F)27°C (81°F)31°C (88°F)32°C (89°F)31°C (88°F)
Dew point22°C (72°F)21°C (70°F)20°C (69°F)19°C (67°F)19°C (66°F)23°C (73°F)23°C (74°F)24°C (74°F)
Wind
Speed12km/h (8mph)12km/h (8mph)15km/h (10mph)13km/h (8mph)12km/h (7mph)17km/h (11mph)13km/h (8mph)11km/h (7mph)
Gusts19km/h (12mph)19km/h (12mph)25km/h (15mph)20km/h (12mph)21km/h (13mph)26km/h (16mph)20km/h (12mph)18km/h (11mph)
Direction 99°
E
110°
ESE
80°
E
73°
ENE
44°
NE
58°
ENE
74°
ENE
90°
E
Wind chill26°C (79°F)25°C (77°F)25°C (76°F)25°C (77°F)25°C (77°F)28°C (82°F)28°C (82°F)27°C (81°F)
Waves
Height0.9m (2.9ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3.0ft)1.1m (3.6ft)1.2m (3.9ft)
Direction 62°
ENE
65°
ENE
68°
ENE
71°
ENE
74°
ENE
74°
ENE
68°
ENE
63°
ENE
Period6.4 sec.6.5 sec.6.8 sec.6.7 sec.6.6 sec.6.5 sec.6.4 sec.6.2 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 06:04 and will set at 19:06 on the beach(es) of San Sebastian. The outside temperature will be a high of 83°F t and a low of 79°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 14.9mph km/h (with gusts up to 19.9mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (80°F)26°C (78°F)26°C (79°F)27°C (81°F)28°C (83°F)28°C (83°F)28°C (82°F)27°C (80°F)
Perceived temperature29°C (85°F)28°C (83°F)29°C (83°F)30°C (86°F)31°C (88°F)32°C (89°F)31°C (88°F)30°C (87°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%81%79%75%72%75%79%83%
Barometric pressure1018 hPa1017 hPa1017 hPa1018 hPa1018 hPa1016 hPa1016 hPa1016 hPa
Cloud cover1%3%4%21%50%39%22%7%
Heat index29°C (85°F)28°C (83°F)29°C (83°F)30°C (86°F)31°C (88°F)32°C (89°F)31°C (88°F)30°C (87°F)
Dew point23°C (73°F)22°C (72°F)22°C (72°F)22°C (72°F)23°C (73°F)23°C (74°F)24°C (74°F)24°C (75°F)
Wind
Speed15km/h (9mph)19km/h (12mph)21km/h (13mph)18km/h (11mph)14km/h (9mph)17km/h (11mph)19km/h (12mph)24km/h (15mph)
Gusts23km/h (14mph)30km/h (19mph)32km/h (20mph)25km/h (15mph)22km/h (13mph)26km/h (16mph)26km/h (16mph)29km/h (18mph)
Direction 81°
E
84°
E
80°
E
78°
ENE
58°
ENE
68°
ENE
77°
ENE
78°
ENE
Wind chill26°C (80°F)26°C (78°F)26°C (79°F)27°C (81°F)28°C (83°F)28°C (83°F)28°C (82°F)27°C (80°F)
Waves
Height1.0m (3.3ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)
Direction 63°
ENE
64°
ENE
65°
ENE
64°
ENE
62°
ENE
62°
ENE
61°
ENE
62°
ENE
Period5.9 sec.5.6 sec.6.2 sec.6.2 sec.6.1 sec.6.0 sec.6.1 sec.6.1 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)29°C (84°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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