Measurements:
°C
°F
CURRENT WEATHER
23:20
San Juan
76°F
W 11 mph
Feels like: 82°F
Precip: 77%
World Resorts Puerto Rico San Juan Weather

7 Day Weather Forecast

04.18
sat
DAY
84°F
W 14 mph
precip
100%
NIGHT
76°F
W 11 mph
precip
77%
04.19
sun
DAY
84°F
W 15 mph
precip
100%
NIGHT
78°F
W 11 mph
precip
67%
04.20
mon
DAY
84°F
W 14 mph
precip
86%
NIGHT
78°F
W 10 mph
precip
100%
04.21
tue
DAY
84°F
SW 11 mph
precip
0%
NIGHT
78°F
W 6 mph
precip
79%
04.22
wed
DAY
82°F
SW 9 mph
precip
83%
NIGHT
78°F
W 7 mph
precip
100%
04.23
thu
DAY
82°F
W 12 mph
precip
100%
NIGHT
76°F
NW 7 mph
precip
75%
04.24
fri
DAY
84°F
W 9 mph
precip
100%
NIGHT
78°F
NW 6 mph
precip
73%

San Juan Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for San Juan was 27.1°F. The maximum and minimum values were 26.9°F and 27.3°F respectively.

San Juan on the Weather Map

Best Time to Visit San Juan
The most sunny months:
June 10 days
March 9 days
April 9 days
The most warm months:
September 91.1 °F
August 91.0 °F
July 90.6 °F
Warmest sea temperature:
October 88.8 °F
September 88.8 °F
August 87.8 °F
The most cold months:
February 84.0 °F
January 84.2 °F
March 84.7 °F
The most rainy months:
October 5 days
September 4 days
November 4 days
The most windy months:
July 12 mph
February 12 mph
June 12 mph
more details