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

All the essential weather information for enjoying the beach in San Juan 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 Juan over the next 7 days?

Discover the best moment to go to the beach in San Juan 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 Juan. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Thursday 20 March 202568°F to 79°Frecommended
Friday 21 March 202568°F to 81°Frecommended
Saturday 22 March 202572°F to 79°Fdiscouraged
Sunday 23 March 202572°F to 83°Fdiscouraged
Monday 24 March 202572°F to 79°Fdiscouraged
Tuesday 25 March 202572°F to 83°Fdiscouraged
Wednesday 26 March 202572°F to 83°Fdiscouraged

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

Sea weather on Thursday 20 March 2025

On Thursday 20 March 2025, the sun will rise at 06:28 and will set at 18:35 on the beach(es) of San Juan. The outside temperature will be a high of 79°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 5.6mph km/h (with gusts up to 8.7mph). Wave height will be up to 8.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (69°F)20°C (68°F)20°C (67°F)23°C (74°F)23°C (73°F)26°C (79°F)23°C (74°F)22°C (71°F)
Perceived temperature21°C (69°F)20°C (68°F)20°C (67°F)25°C (77°F)25°C (77°F)27°C (80°F)25°C (77°F)22°C (71°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%76%77%63%54%56%66%74%
Barometric pressure1016 hPa1015 hPa1016 hPa1018 hPa1017 hPa1015 hPa1016 hPa1018 hPa
Cloud cover13%14%21%2%8%53%54%31%
Heat index21°C (69°F)20°C (68°F)20°C (67°F)25°C (77°F)25°C (77°F)27°C (80°F)25°C (77°F)24°C (76°F)
Dew point16°C (60°F)16°C (60°F)15°C (60°F)16°C (61°F)13°C (55°F)17°C (62°F)17°C (62°F)17°C (62°F)
Wind
Speed5km/h (3mph)6km/h (4mph)5km/h (3mph)4km/h (2mph)7km/h (4mph)9km/h (6mph)7km/h (4mph)3km/h (2mph)
Gusts9km/h (6mph)11km/h (7mph)9km/h (6mph)5km/h (3mph)14km/h (9mph)11km/h (7mph)10km/h (6mph)4km/h (3mph)
Direction 271°
W
289°
WNW
263°
W
291°
WNW
339°
NNW
359°
N
15°
NNE
36°
NE
Wind chill21°C (69°F)20°C (68°F)20°C (67°F)23°C (74°F)23°C (73°F)26°C (79°F)23°C (74°F)22°C (71°F)
Waves
Height1.9m (6.1ft)2.0m (6.4ft)2.0m (6.5ft)2.1m (6.8ft)2.4m (7.7ft)2.7m (8.7ft)2.7m (9.0ft)2.6m (8.7ft)
Direction
N
350°
N
346°
NNW
344°
NNW
342°
NNW
342°
NNW
341°
NNW
341°
NNW
Period10.2 sec.10.1 sec.10.1 sec.10.1 sec.12.7 sec.13.0 sec.12.8 sec.12.6 sec.
Significant height0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.9m (3ft)0.3m (1ft)0.4m (1.3ft)0.2m (0.7ft)0.1m (0.3ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Friday 21 March 2025

On Friday 21 March 2025, the sun will rise at 06:27 and will set at 18:36 on the beach(es) of San Juan. The outside temperature will be a high of 81°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 9.3mph km/h (with gusts up to 14.9mph). Wave height will be up to 8.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature21°C (70°F)20°C (69°F)20°C (68°F)24°C (75°F)23°C (74°F)26°C (79°F)24°C (75°F)23°C (73°F)
Perceived temperature21°C (70°F)20°C (69°F)20°C (68°F)26°C (78°F)25°C (77°F)28°C (82°F)26°C (78°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity78%80%83%69%59%65%76%83%
Barometric pressure1018 hPa1016 hPa1017 hPa1019 hPa1018 hPa1016 hPa1017 hPa1019 hPa
Cloud cover18%24%34%33%12%69%67%73%
Heat index21°C (70°F)20°C (69°F)20°C (68°F)26°C (78°F)25°C (77°F)28°C (82°F)26°C (78°F)25°C (77°F)
Dew point17°C (62°F)17°C (62°F)17°C (63°F)18°C (64°F)15°C (59°F)19°C (66°F)19°C (67°F)20°C (68°F)
Wind
Speed2km/h (1mph)3km/h (2mph)3km/h (2mph)5km/h (3mph)12km/h (7mph)15km/h (10mph)11km/h (7mph)10km/h (6mph)
Gusts3km/h (2mph)4km/h (3mph)5km/h (3mph)6km/h (4mph)24km/h (15mph)19km/h (12mph)17km/h (10mph)15km/h (10mph)
Direction 103°
ESE
131°
SE
137°
SE
79°
E
60°
ENE
54°
NE
50°
NE
76°
ENE
Wind chill21°C (70°F)20°C (69°F)20°C (68°F)24°C (75°F)23°C (74°F)26°C (79°F)24°C (75°F)23°C (73°F)
Waves
Height2.5m (8.2ft)2.3m (7.6ft)2.2m (7.1ft)2.0m (6.7ft)1.9m (6.2ft)1.8m (5.9ft)1.7m (5.6ft)1.6m (5.2ft)
Direction 340°
NNW
340°
NNW
340°
NNW
341°
NNW
341°
NNW
342°
NNW
343°
NNW
344°
NNW
Period12.5 sec.12.3 sec.11.9 sec.11.7 sec.11.4 sec.11.1 sec.10.9 sec.10.7 sec.
Significant height0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.1m (0.3ft)0.5m (1.6ft)0.7m (2.3ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Saturday 22 March 2025

On Saturday 22 March 2025, the sun will rise at 06:26 and will set at 18:36 on the beach(es) of San Juan. The outside temperature will be a high of 79°F t and a low of 72°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 18mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (72°F)22°C (72°F)25°C (77°F)26°C (79°F)26°C (79°F)24°C (75°F)23°C (73°F)
Perceived temperature25°C (77°F)25°C (76°F)25°C (77°F)27°C (80°F)28°C (82°F)28°C (83°F)26°C (79°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%87%87%78%70%71%81%88%
Barometric pressure1019 hPa1017 hPa1018 hPa1020 hPa1020 hPa1017 hPa1018 hPa1019 hPa
Cloud cover83%65%59%52%84%84%81%74%
Heat index25°C (77°F)25°C (76°F)25°C (77°F)27°C (80°F)28°C (82°F)28°C (83°F)26°C (79°F)25°C (77°F)
Dew point20°C (68°F)20°C (68°F)20°C (68°F)21°C (69°F)20°C (68°F)21°C (69°F)21°C (69°F)21°C (69°F)
Wind
Speed8km/h (5mph)8km/h (5mph)12km/h (7mph)16km/h (10mph)20km/h (13mph)21km/h (13mph)19km/h (12mph)14km/h (9mph)
Gusts13km/h (8mph)13km/h (8mph)18km/h (11mph)19km/h (12mph)26km/h (16mph)27km/h (16mph)29km/h (18mph)24km/h (15mph)
Direction 84°
E
77°
ENE
65°
ENE
67°
ENE
67°
ENE
69°
ENE
79°
ENE
85°
E
Wind chill23°C (73°F)22°C (72°F)22°C (72°F)25°C (77°F)26°C (79°F)26°C (79°F)24°C (75°F)23°C (73°F)
Waves
Height1.5m (4.9ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (4.1ft)1.2m (4.0ft)1.2m (4.0ft)1.2m (3.9ft)1.1m (3.6ft)
Direction 344°
NNW
345°
NNW
346°
NNW
346°
NNW
347°
NNW
349°
N
351°
N
351°
N
Period10.4 sec.10.3 sec.10.1 sec.9.8 sec.9.7 sec.9.5 sec.9.4 sec.9.2 sec.
Significant height0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)0.5m (1.6ft)0.8m (2.6ft)1.6m (5.2ft)1.5m (4.9ft)1.3m (4.3ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Sunday 23 March 2025

On Sunday 23 March 2025, the sun will rise at 06:26 and will set at 18:36 on the beach(es) of San Juan. The outside temperature will be a high of 83°F t and a low of 72°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 14.9mph km/h (with gusts up to 20.5mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (72°F)22°C (72°F)25°C (77°F)25°C (76°F)27°C (80°F)24°C (75°F)23°C (74°F)
Perceived temperature25°C (77°F)25°C (76°F)25°C (76°F)27°C (81°F)26°C (79°F)28°C (83°F)26°C (79°F)25°C (77°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity90%90%90%77%56%69%77%85%
Barometric pressure1019 hPa1017 hPa1018 hPa1020 hPa1019 hPa1017 hPa1017 hPa1020 hPa
Cloud cover92%75%77%78%82%89%7%76%
Heat index25°C (77°F)25°C (76°F)25°C (76°F)27°C (81°F)26°C (79°F)28°C (83°F)26°C (79°F)25°C (77°F)
Dew point21°C (70°F)21°C (69°F)20°C (69°F)21°C (69°F)15°C (60°F)20°C (69°F)20°C (68°F)20°C (69°F)
Wind
Speed13km/h (8mph)12km/h (7mph)12km/h (7mph)15km/h (9mph)22km/h (14mph)24km/h (15mph)19km/h (12mph)15km/h (9mph)
Gusts22km/h (14mph)20km/h (12mph)20km/h (12mph)19km/h (12mph)26km/h (16mph)32km/h (20mph)33km/h (21mph)26km/h (16mph)
Direction 89°
E
94°
E
109°
ESE
103°
ESE
84°
E
81°
E
79°
ENE
86°
E
Wind chill23°C (73°F)22°C (72°F)22°C (72°F)25°C (77°F)25°C (76°F)27°C (80°F)24°C (75°F)23°C (74°F)
Waves
Height1.0m (3.3ft)1.0m (3.2ft)1.0m (3.3ft)1.2m (3.9ft)1.4m (4.6ft)1.6m (5.3ft)1.5m (5.0ft)1.4m (4.5ft)
Direction 353°
N
355°
N
357°
N
335°
NNW
335°
NNW
336°
NNW
337°
NNW
338°
NNW
Period9.0 sec.9.0 sec.8.9 sec.8.8 sec.11.1 sec.10.5 sec.10.1 sec.9.5 sec.
Significant height0.9m (3ft)0.8m (2.6ft)0.9m (3ft)0.9m (3ft)1.6m (5.2ft)1.1m (3.6ft)0.9m (3ft)0.7m (2.3ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Monday 24 March 2025

On Monday 24 March 2025, the sun will rise at 06:25 and will set at 18:36 on the beach(es) of San Juan. The outside temperature will be a high of 79°F t and a low of 72°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 18.6mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)23°C (74°F)23°C (73°F)25°C (77°F)25°C (76°F)26°C (79°F)25°C (78°F)23°C (74°F)
Perceived temperature25°C (77°F)25°C (77°F)25°C (77°F)27°C (80°F)26°C (78°F)27°C (81°F)27°C (81°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%86%88%80%59%62%75%84%
Barometric pressure1019 hPa1017 hPa1017 hPa1019 hPa1018 hPa1017 hPa1017 hPa1019 hPa
Cloud cover51%90%74%60%71%14%39%32%
Heat index25°C (77°F)25°C (77°F)25°C (77°F)27°C (80°F)26°C (78°F)27°C (81°F)27°C (81°F)25°C (78°F)
Dew point20°C (69°F)21°C (69°F)21°C (69°F)21°C (70°F)16°C (61°F)18°C (64°F)21°C (69°F)20°C (69°F)
Wind
Speed14km/h (9mph)16km/h (10mph)16km/h (10mph)21km/h (13mph)26km/h (16mph)25km/h (16mph)22km/h (13mph)17km/h (10mph)
Gusts24km/h (15mph)26km/h (16mph)26km/h (16mph)28km/h (18mph)29km/h (18mph)27km/h (17mph)30km/h (19mph)28km/h (17mph)
Direction 93°
E
84°
E
93°
E
99°
E
87°
E
89°
E
92°
E
100°
E
Wind chill23°C (73°F)23°C (74°F)23°C (73°F)25°C (77°F)25°C (76°F)26°C (79°F)25°C (78°F)23°C (74°F)
Waves
Height1.3m (4.4ft)1.3m (4.2ft)1.3m (4.3ft)1.4m (4.4ft)1.4m (4.6ft)1.5m (4.9ft)1.5m (4.9ft)1.4m (4.6ft)
Direction 338°
NNW
338°
NNW
339°
NNW
347°
NNW
351°
N
352°
N
233°
SW
27°
NNE
Period9.2 sec.9.0 sec.9.0 sec.8.7 sec.8.5 sec.8.4 sec.9.1 sec.10.4 sec.
Significant height0.9m (3ft)1.1m (3.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.1m (3.6ft)1.1m (3.6ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Tuesday 25 March 2025

On Tuesday 25 March 2025, the sun will rise at 06:24 and will set at 18:36 on the beach(es) of San Juan. The outside temperature will be a high of 83°F t and a low of 72°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 19.3mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature22°C (72°F)23°C (73°F)24°C (75°F)24°C (76°F)25°C (77°F)27°C (81°F)26°C (78°F)23°C (74°F)
Perceived temperature25°C (76°F)25°C (77°F)26°C (78°F)26°C (79°F)27°C (80°F)29°C (85°F)27°C (81°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity85%86%81%68%59%64%73%85%
Barometric pressure1019 hPa1017 hPa1018 hPa1019 hPa1019 hPa1017 hPa1017 hPa1018 hPa
Cloud cover48%79%60%23%10%27%22%41%
Heat index25°C (76°F)25°C (77°F)26°C (78°F)26°C (79°F)27°C (80°F)29°C (85°F)27°C (81°F)25°C (78°F)
Dew point20°C (67°F)20°C (68°F)20°C (68°F)18°C (65°F)16°C (62°F)20°C (68°F)20°C (69°F)21°C (69°F)
Wind
Speed15km/h (9mph)14km/h (9mph)17km/h (10mph)20km/h (12mph)24km/h (15mph)26km/h (16mph)21km/h (13mph)14km/h (9mph)
Gusts26km/h (16mph)23km/h (15mph)25km/h (15mph)26km/h (16mph)29km/h (18mph)31km/h (19mph)29km/h (18mph)24km/h (15mph)
Direction 103°
ESE
104°
ESE
106°
ESE
100°
E
90°
E
88°
E
95°
E
104°
ESE
Wind chill22°C (72°F)23°C (73°F)24°C (75°F)24°C (76°F)25°C (77°F)27°C (81°F)26°C (78°F)23°C (74°F)
Waves
Height1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)1.5m (4.9ft)1.6m (5.2ft)1.7m (5.6ft)1.6m (5.2ft)1.4m (4.6ft)
Direction 73°
ENE
73°
ENE
70°
ENE
71°
ENE
75°
ENE
79°
ENE
77°
ENE
76°
ENE
Period10.0 sec.9.8 sec.9.6 sec.9.2 sec.9.0 sec.9.0 sec.8.4 sec.7.3 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.3m (4.3ft)1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Wednesday 26 March 2025

On Wednesday 26 March 2025, the sun will rise at 06:23 and will set at 18:37 on the beach(es) of San Juan. The outside temperature will be a high of 83°F t and a low of 72°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 14.9mph km/h (with gusts up to 19.9mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature23°C (73°F)22°C (72°F)23°C (73°F)25°C (76°F)27°C (80°F)27°C (81°F)25°C (77°F)23°C (74°F)
Perceived temperature25°C (77°F)25°C (77°F)25°C (77°F)27°C (80°F)28°C (83°F)29°C (83°F)26°C (80°F)25°C (78°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity88%89%88%79%67%62%72%84%
Barometric pressure1018 hPa1016 hPa1017 hPa1018 hPa1017 hPa1015 hPa1014 hPa1016 hPa
Cloud cover64%59%68%72%45%18%23%45%
Heat index25°C (77°F)25°C (77°F)25°C (77°F)27°C (80°F)28°C (83°F)29°C (83°F)26°C (80°F)25°C (78°F)
Dew point21°C (69°F)21°C (69°F)21°C (69°F)21°C (69°F)20°C (68°F)19°C (66°F)19°C (67°F)20°C (69°F)
Wind
Speed14km/h (9mph)13km/h (8mph)13km/h (8mph)18km/h (11mph)23km/h (14mph)24km/h (15mph)19km/h (12mph)13km/h (8mph)
Gusts23km/h (14mph)21km/h (13mph)21km/h (13mph)25km/h (15mph)30km/h (19mph)32km/h (20mph)32km/h (20mph)21km/h (13mph)
Direction 108°
ESE
113°
ESE
110°
ESE
103°
ESE
96°
E
93°
E
99°
E
106°
ESE
Wind chill23°C (73°F)22°C (72°F)23°C (73°F)25°C (76°F)27°C (80°F)27°C (81°F)25°C (77°F)23°C (74°F)
Waves
Height1.3m (4.3ft)1.3m (4.3ft)1.3m (4.3ft)1.4m (4.6ft)1.3m (4.3ft)1.3m (4.3ft)1.2m (3.9ft)1.1m (3.6ft)
Direction 75°
ENE
75°
ENE
74°
ENE
74°
ENE
75°
ENE
75°
ENE
75°
ENE
77°
ENE
Period7.5 sec.7.5 sec.7.5 sec.7.4 sec.8.4 sec.10.1 sec.9.4 sec.8.0 sec.
Significant height0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.6m (2ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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