13.09
sun
sun
Day
86°F
S 2 mph
Precip.
4%
4%
Night
81°F
N 8 mph
Precip.
11%
11%
14.09
mon
mon
Day
88°F
W 4 mph
Precip.
4%
4%
Night
82°F
NW 6 mph
Precip.
14%
14%
15.09
tue
tue
Day
84°F
SW 9 mph
Precip.
24%
24%
Night
82°F
SW 14 mph
Precip.
21%
21%
16.09
wed
wed
Day
84°F
SW 17 mph
Precip.
58%
58%
Night
81°F
SW 19 mph
Precip.
58%
58%
17.09
thu
thu
Day
82°F
SW 17 mph
Precip.
51%
51%
Night
79°F
SW 7 mph
Precip.
48%
48%
18.09
fri
fri
Day
81°F
SW 7 mph
Precip.
20%
20%
Night
81°F
NW 11 mph
Precip.
30%
30%
19.09
sat
sat
Day
84°F
NW 10 mph
Precip.
44%
44%
Night
81°F
NW 9 mph
Precip.
43%
43%
sea water
temperature
temperature
| Port St. Lucie |
monthly
weather
weather
| Port St. Lucie |
current
weather
weather
| Port St. Lucie |
14 days
forecast
forecast
| Port St. Lucie |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 85.6°F and 83.1°F.
Air temperature in Port St. Lucie, °F
Precipitation total in Port St. Lucie, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Port St. Lucie
Port St. Lucie on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Port St. Lucie
Local time: 21:45
September 14, monday
0000
81°F
N
8 mph
8 mph
0300
79°F
NE
6 mph
6 mph
0600
77°F
NE
5 mph
5 mph
0900
81°F
NE
4 mph
4 mph
1200
88°F
W
4 mph
4 mph
1500
88°F
W
9 mph
9 mph
1800
86°F
W
8 mph
8 mph
2100
82°F
NW
7 mph
7 mph
