Current Sea Water Temperature:
+84.2°F
| Maximum Sea Water Temperature in April: | 86.2°F |
| Minimum Sea Water Temperature in April: | 81.8°F |
| Average water temperature in April: | 83.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| April 12 | 84.2°F | April 07 | 83.2°F |
| April 11 | 83.8°F | April 06 | 83.0°F |
| April 10 | 83.8°F | April 05 | 83.4°F |
| April 09 | 83.4°F | April 04 | 83.8°F |
| April 08 | 83.4°F | April 03 | 84.0°F |
When is the Warmest Sea for San Juan?
According to our data for the last three years for San Juan the highest average sea water temperature was in October, September and August.
Average Water Temperature by Month, °F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
15
30
45
60
75
90
105
120
85.7
87.6
88.8
88.7
87.7
86.8
86.1
84.6
83.4
82.9
83
83.8
Sea Water Temperature in October
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
83
85
87
89
91
93
95
97
The average sea surface temperature in October 2024 for San Juan was 91.1°F. The maximum and minimum values were 90.4°F and 92.0°F respectively.
Sea Water Temperature in September
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
82
84
86
88
90
92
94
96
The average sea surface temperature in September 2024 for San Juan was 90.5°F. The maximum and minimum values were 89.4°F and 92.0°F respectively.
Sea Water Temperature in August
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
83
85
87
89
91
93
95
The average sea surface temperature in August 2024 for San Juan was 89.2°F. The maximum and minimum values were 88.6°F and 90.2°F respectively.
Puerto Rico Resorts:
NAME
F°
| Aguadilla |  |
+78 |
| Arecibo | |
+76 |
| Isabella | |
+78 |
| Mayaguez | |
+78 |
| Ponce | |
+80 |
| San Juan | |
+82 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Juan
Local time: 23:21
13 apr, sunday
| 0000 |  |
82°F | NW 7 mph |
| 0300 | |
80°F | NW 6 mph |
| 0600 | |
80°F | NW 6 mph |
| 0900 |  |
84°F | NW 7 mph |
| 1200 | |
86°F | W 7 mph |
| 1500 | |
88°F | W 4 mph |
| 1800 | |
86°F | NW 2 mph |
| 2100 |  |
84°F | N 2 mph |