World Resorts Puerto Rico San Juan Weather

San Juan weather in August

Weather in San Juan: August

Average day temperature: 87.0°F
Average night temperature: 78.7°F
Sea water temperature: 83.9°F
Number of sunny days: 7 days
Day length: 12.5 - 12.9 hours
Number of rainy days: 4 days
Precipitation totals: 3.0 in.

Air temperature in August, °F

Show year:
2024
2023
2022

The highest day temperature during August of 2024 was 90°F. At the same time the lowest night temperature was 78°F. Day and night temperature averages during August were 86.2°F and 79.5°F.

Sea water temperature in San Juan in August, °F

Show year:
2024
2023
2022

The average sea water temperature in August of 2024 was 85.3°F. The highest and lowest sea temperatures during the month were 86.2°F and 84.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in San Juan in August is 2.7 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 11.4 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 6.2.

Best time for vacation in San Juan

Sunniest months:
March 10 days
June 10 days
October 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 80.5 °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
August 11.9 mph

San Juan on a weather map

San Juan
+81°F
NW 5 mph
Feels like: +91°F
Precip.: 0%
Places in Puerto Rico:
Name
°F
+81°F
+81°F
+79°F
+81°F
+82°F
+81°F
24 Hours Forecast
San Juan
Local time: 11:36
December 22, sunday
1200
81°F
NW
5 mph
1500
82°F
W
5 mph
1800
81°F
W
9 mph
2100
79°F
NW
4 mph
December 23, monday
0000
79°F
W
7 mph
0300
79°F
NW
6 mph
0600
79°F
W
6 mph
0900
82°F
W
7 mph
Units of measurement: °C / °F