World Resorts Puerto Rico San Juan

San Juan Monthly Weather Averages

Please click on any column to get detailed information about San Juan weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

The warmest month in San Juan is august. The average daily temp is 86.9°F. The average nightly temp is 78.7°F.

Sea water temperature, °F

The warmest sea temperature usually observed in September. Average daily sea water temperature during this month is 84.7°F.

Precipitation total, in.

December is the month with least precipitations during the year. The average precipitation totals for this month is 1.6 in. The month with most precipitation total is September.

Number of rainy days

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in San Juan

Sunniest months:
June 11 days
March 10 days
October 9 days
Warmest months:
September 87.1 °F
August 87.0 °F
July 86.7 °F
Warmest sea temp:
September 84.7 °F
October 84.7 °F
August 83.8 °F
Coldest months:
February 80.5 °F
January 80.8 °F
March 81.3 °F
Rainiest months:
November 5 days
October 5 days
September 4 days
Windiest months:
July 12.6 mph
February 11.9 mph
June 11.9 mph

San Juan on a weather map

San Juan
+77°F
W 7 mph
Feels like: +81°F
Precip.: 100%
Places in Puerto Rico:
Name
°F
+77°F
+75°F
+77°F
+77°F
+77°F
+77°F
24 Hours Forecast
San Juan
Local time: 04:48
April 27, saturday
0600
77°F
W
7 mph
0900
79°F
W
7 mph
1200
81°F
W
11 mph
1500
79°F
SW
11 mph
1800
77°F
W
9 mph
2100
77°F
SW
11 mph
April 28, sunday
0000
77°F
SW
13 mph
0300
75°F
SW
12 mph
Units of measurement: °C / °F