World Resorts Puerto Rico San Juan Weather

San Juan Sea Temperature in March

Average sea water temperature in March:
+79.6°F
Minimum sea water temperature in March: 82.2°F
Maximum sea water temperature in March: 78.1°F

Daily sea water temperature in March, °F

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
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25
27
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74
76
78
80
82
84
86
88

The average sea water temperature in March of 2025 was 81.3°F. The highest and lowest sea temperatures during the month were 82.2°F and 80.4°F.

Monthly sea water temperature in San Juan, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
82.1
83.8
84.9
84.8
83.9
83.1
82.5
81.2
80.1
79.6
79.7
80.5

Which Puerto Rico resorts have warmest sea in March?

Place name March 2025 March 2024
Ponce 81.9°F 81.8°F
Mayaguez 81.5°F 81.5°F
Aguadilla 81.3°F 81.1°F
San Juan 81.3°F 80.6°F
Isabella 81.2°F 80.7°F
Arecibo 80.9°F 81.0°F

Best time for vacation in San Juan

Sunniest months:
June 10 days
March 10 days
April 9 days
Warmest months:
September 87.1 °F
August 87.0 °F
July 86.7 °F
Warmest sea temp:
October 84.9 °F
September 84.8 °F
August 83.9 °F
Coldest months:
February 80.6 °F
January 80.8 °F
March 81.3 °F
Rainiest months:
October 5 days
August 4 days
September 4 days
Windiest months:
July 12.6 mph
February 12.0 mph
August 11.9 mph

San Juan on a weather map

Leaflet | Tiles © Esri
Places in Puerto Rico:
Name
°F
Aguadilla
+82°F
Arecibo
+81°F
Isabella
+82°F
Mayaguez
+82°F
Ponce
+82°F
San Juan
+81°F
24 Hours Forecast
San Juan
Local time: 13:23
April 02, wednesday
1500
81°F
W
17 mph
1800
79°F
W
17 mph
2100
77°F
W
16 mph
April 03, thursday
0000
77°F
W
16 mph
0300
75°F
W
15 mph
0600
77°F
W
15 mph
0900
77°F
W
17 mph
1200
79°F
W
21 mph
Units of measurement: °C / °F