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:
2026
2025
2024

The average sea water temperature in March of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 80.6°F and 80.2°F.

Monthly sea water temperature in San Juan, °F

Which Puerto Rico resorts have warmest sea in March?

Place name March 2026 March 2025
Aguadilla 80.7°F 81.3°F
Mayaguez 80.6°F 81.5°F
Isabella 80.5°F 81.2°F
Ponce 80.4°F 81.9°F
San Juan 80.4°F 81.3°F
Arecibo 80.4°F 80.9°F

Best time for vacation in San Juan

Sunniest months:
June 10 days
March 10 days
April 9 days
Warmest months:
September 87.0 °F
August 86.9 °F
July 86.5 °F
Warmest sea temp:
October 84.9 °F
September 84.9 °F
August 84.0 °F
Coldest months:
February 80.6 °F
January 80.8 °F
March 81.3 °F
Rainiest months:
October 5 days
September 4 days
November 4 days
Windiest months:
July 12.6 mph
February 11.9 mph
June 11.8 mph

San Juan on a weather map

Current weather
23:22
San Juan
+77°F
W 14 mph
Feels like: +79°F
Precip.: 0%
Places in Puerto Rico:
Name
°F
Aguadilla
+72°F
Arecibo
+73°F
Isabella
+73°F
Mayaguez
+72°F
Ponce
+73°F
San Juan
+77°F
24 Hours Forecast
San Juan
Local time: 23:22
March 17, tuesday
0000
77°F
W
14 mph
0300
75°F
W
12 mph
0600
75°F
W
14 mph
0900
77°F
W
15 mph
1200
82°F
W
19 mph
1500
84°F
W
17 mph
1800
81°F
W
14 mph
2100
77°F
W
12 mph
Units of measurement: °C / °F