Measurements:
°C
°F
San Juan
78°F
W 7 mph
Feels like: 80°F
Precip: 44%
World Resorts Puerto Rico San Juan Weather

San Juan Sea Water Temperature

Current Sea Water Temperature:
+83.8°F
Maximum Sea Water Temperature in January: 84.6°F
Minimum Sea Water Temperature in January: 81.4°F
Average water temperature in January: 83.5°F

Sea Water Temperature for the Last 10 Days:

January 16 83.8°F January 11 83.8°F
January 15 83.8°F January 10 83.8°F
January 14 83.6°F January 09 84.0°F
January 13 83.4°F January 08 83.8°F
January 12 83.6°F January 07 84.0°F

When is the Warmest Sea for San Juan?

According to our data for the last three years for San Juan the highest average sea water temperature was in September, October and August.

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2018 2017 2016

The average sea surface temperature in September 2018 for San Juan was 88.0°F. The maximum and minimum values were 87.2°F and 89.2°F respectively.

Sea Water Temperature in October

Select Year: 2018 2017 2016

The average sea surface temperature in October 2018 for San Juan was 87.8°F. The maximum and minimum values were 87.0°F and 88.6°F respectively.

Sea Water Temperature in August

Select Year: 2018 2017 2016

The average sea surface temperature in August 2018 for San Juan was 87.4°F. The maximum and minimum values were 86.4°F and 88.0°F respectively.

Best Time to Visit San Juan
The most sunny months:
March 14 days
June 14 days
October 12 days
The most warm months:
July 91.7 °F
August 91.6 °F
September 91.4 °F
Warmest sea temperature:
September 88.2 °F
October 88.2 °F
August 87.3 °F
The most cold months:
February 84.6 °F
January 84.8 °F
March 85.3 °F
The most rainy months:
October 6 days
November 6 days
April 4 days
The most windy months:
July 12 mph
August 12 mph
January 12 mph

San Juan on the Weather Map

Puerto Rico Resorts:
NAME
Aguadilla +76
Arecibo +74
Isabella +76
Mayaguez +76
San Juan +78
24 Hours Weather Forecast
San Juan
Local time: 21:03
17 jan, thursday
0000 76°F
W
3 mph
0300 76°F
W
4 mph
0600 76°F
NW
4 mph
0900 78°F
N
7 mph
1200 82°F
NW
11 mph
1500 82°F
W
10 mph
1800 78°F
NW
9 mph
2100 76°F
NW
6 mph