16.03
mon
mon
Day

82°F
W 20 mph
Precip.
0%
0%
Night

77°F
W 14 mph
Precip.
0%
0%
17.03
tue
tue
Day

82°F
W 19 mph
Precip.
0%
0%
Night

77°F
W 12 mph
Precip.
0%
0%
18.03
wed
wed
Day

84°F
W 17 mph
Precip.
0%
0%
Night

77°F
NW 9 mph
Precip.
0%
0%
19.03
thu
thu
Day

82°F
W 13 mph
Precip.
0%
0%
Night

75°F
NW 7 mph
Precip.
66%
66%
20.03
fri
fri
Day

82°F
W 10 mph
Precip.
68%
68%
Night

72°F
N 5 mph
Precip.
0%
0%
21.03
sat
sat
Day

81°F
SW 7 mph
Precip.
28%
28%
Night

75°F
SW 5 mph
Precip.
100%
100%
22.03
sun
sun
Day

79°F
SW 14 mph
Precip.
100%
100%
Night

75°F
W 10 mph
Precip.
72%
72%
sea water
temperature
temperature
| San Juan |
monthly
weather
weather
| San Juan |
current
weather
weather
| San Juan |
14 days
forecast
forecast
| San Juan |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 80.4°F. The highest and lowest sea temperatures during the month were 80.6°F and 80.2°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
San Juan on a weather map
Places in Puerto Rico:
Name
°F
24 Hours Forecast
San Juan
Local time: 18:36
March 16, monday
2100

77°F
W
15 mph
15 mph
March 17, tuesday
0000

77°F
W
14 mph
14 mph
0300

75°F
W
12 mph
12 mph
0600

75°F
W
14 mph
14 mph
0900

77°F
W
15 mph
15 mph
1200

82°F
W
19 mph
19 mph
1500

84°F
W
17 mph
17 mph
1800

81°F
W
14 mph
14 mph



























