Current sea water temperature:
+81.0°F
| Minimum sea water temperature in March: | 82.2°F |
| Maximum sea water temperature in March: | 78.1°F |
| Average sea water temperature in March: | 79.6°F |
| more information | |
14 days
forecast
forecast
| San Juan |
monthly
weather
weather
| San Juan |
Sea water temperature for the last 10 days:
| March 29 | 81.0°F | March 24 | 81.3°F |
| March 28 | 81.0°F | March 23 | 81.3°F |
| March 27 | 80.6°F | March 22 | 81.7°F |
| March 26 | 80.8°F | March 21 | 81.7°F |
| March 25 | 81.1°F | March 20 | 81.7°F |
Monthly sea water temperature, °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
79.6
79.7
80.5
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.
current
weather
weather
| San Juan |
weather in
April
April
| San Juan |
Best time for vacation in San Juan
San Juan on a weather map
Leaflet | Tiles © Esri
Places in Puerto Rico:
Name
°F
24 Hours Forecast
San Juan
Local time: 15:48
March 29, saturday
1800
81°F
W
17 mph
17 mph
2100
79°F
W
15 mph
15 mph
March 30, sunday
0000
77°F
W
17 mph
17 mph
0300
77°F
W
15 mph
15 mph
0600
77°F
W
14 mph
14 mph
0900
77°F
W
15 mph
15 mph
1200
79°F
W
16 mph
16 mph
1500
79°F
W
17 mph
17 mph
