World Resorts Puerto Rico San Juan Weather

San Juan 14 Days Forecast

18.12
thu
Day
82°F
W 13 mph
Precip.
0%
Night
79°F
W 13 mph
Precip.
0%
19.12
fri
Day
82°F
W 14 mph
Precip.
0%
Night
79°F
W 10 mph
Precip.
0%
20.12
sat
Day
82°F
W 13 mph
Precip.
0%
Night
77°F
W 11 mph
Precip.
100%
21.12
sun
Day
82°F
W 15 mph
Precip.
0%
Night
75°F
W 9 mph
Precip.
100%
22.12
mon
Day
81°F
W 13 mph
Precip.
100%
Night
75°F
W 9 mph
Precip.
100%
23.12
tue
Day
81°F
SW 11 mph
Precip.
100%
Night
75°F
SW 9 mph
Precip.
100%
24.12
wed
Day
77°F
W 11 mph
Precip.
100%
Night
73°F
W 9 mph
Precip.
100%
25.12
thu
Day
79°F
W 9 mph
Precip.
83%
Night
73°F
W 6 mph
Precip.
100%
26.12
fri
Day
79°F
W 11 mph
Precip.
100%
Night
73°F
NW 6 mph
Precip.
74%
27.12
sat
Day
79°F
W 9 mph
Precip.
100%
Night
73°F
NW 7 mph
Precip.
100%
28.12
sun
Day
81°F
NW 11 mph
Precip.
0%
Night
73°F
NW 7 mph
Precip.
0%
29.12
mon
Day
81°F
W 11 mph
Precip.
42%
Night
75°F
NW 7 mph
Precip.
25%
30.12
tue
Day
82°F
W 11 mph
Precip.
79%
Night
75°F
NW 7 mph
Precip.
71%
31.12
wed
Day
81°F
W 11 mph
Precip.
23%
Night
75°F
W 8 mph
Precip.
100%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 83.0°F. The highest and lowest sea temperatures during the month were 83.7°F and 82.6°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 81.5°F. The highest and lowest sea temperatures during the month were 82.4°F and 80.8°F.

Air temperature in San Juan, °F

Precipitation total in San Juan, in.

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

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 12.0 mph
June 11.8 mph

San Juan on a weather map

Current weather
12:35
San Juan
+82°F
W 13 mph
Feels like: +88°F
Precip.: 0%
Places in Puerto Rico:
Name
°F
Aguadilla
+82°F
Arecibo
+82°F
Isabella
+79°F
Mayaguez
+84°F
Ponce
+86°F
San Juan
+82°F
24 Hours Forecast
San Juan
Local time: 12:35
December 18, thursday
1500
81°F
SW
14 mph
1800
79°F
SW
14 mph
2100
79°F
W
14 mph
December 19, friday
0000
79°F
W
13 mph
0300
79°F
W
11 mph
0600
79°F
W
11 mph
0900
79°F
W
13 mph
1200
82°F
W
14 mph
Units of measurement: °C / °F