World Resorts Puerto Rico San Juan Weather

San Juan sea water temperature

Current sea water temperature:
+81.9°F
Minimum sea water temperature in January: 82.6°F
Maximum sea water temperature in January: 78.3°F
Average sea water temperature in January: 80.4°F

Sea water temperature for the last 10 days:

January 10 81.9°F January 5 81.9°F
January 9 81.7°F January 4 82.0°F
January 8 81.7°F January 3 82.2°F
January 7 81.7°F January 2 82.0°F
January 6 81.9°F January 1 82.4°F

When is the warmest sea in San Juan?

Based on the data about daily sea water temperature for the last three years the warmest sea in San Juan was noticed in October, September and August.

Monthly Sea Temperatures in San Juan, °F

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
82.1
83.8
84.9
84.8
83.9
83.1
82.5
81.2
80.1
79.5
79.7
80.4

Sea water temperature in October, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
79
81
83
85
87
89
91
93

The average sea water temperature in October of 2024 was 87.0°F. The highest and lowest sea temperatures during the month were 87.8°F and 86.4°F.

Sea water temperature in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
78
80
82
84
86
88
90
92

The average sea water temperature in September of 2024 was 86.4°F. The highest and lowest sea temperatures during the month were 87.8°F and 85.5°F.

Sea water temperature in August, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
79
81
83
85
87
89
91

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.

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

Leaflet | Tiles © Esri
Places in Puerto Rico:
Name
°F
+75°F
+75°F
+75°F
+73°F
+73°F
+77°F
24 Hours Forecast
San Juan
Local time: 05:53
January 10, friday
0600
77°F
S
8 mph
0900
77°F
S
7 mph
1200
77°F
S
9 mph
1500
77°F
S
12 mph
1800
75°F
S
11 mph
2100
75°F
S
9 mph
January 11, saturday
0000
75°F
S
7 mph
0300
75°F
SW
9 mph
Units of measurement: °C / °F