World Resorts USA Port St. Lucie Weather

Port St. Lucie 14 Days Forecast

13.09
sun
Day
86°F
S 2 mph
Precip.
4%
Night
81°F
N 8 mph
Precip.
11%
14.09
mon
Day
88°F
W 4 mph
Precip.
4%
Night
82°F
NW 6 mph
Precip.
14%
15.09
tue
Day
84°F
SW 9 mph
Precip.
24%
Night
82°F
SW 14 mph
Precip.
21%
16.09
wed
Day
84°F
SW 17 mph
Precip.
58%
Night
81°F
SW 19 mph
Precip.
58%
17.09
thu
Day
82°F
SW 17 mph
Precip.
51%
Night
79°F
SW 7 mph
Precip.
48%
18.09
fri
Day
81°F
SW 7 mph
Precip.
20%
Night
81°F
NW 11 mph
Precip.
30%
19.09
sat
Day
84°F
NW 10 mph
Precip.
44%
Night
81°F
NW 9 mph
Precip.
43%
20.09
sun
Day
86°F
NW 5 mph
Precip.
24%
Night
81°F
NW 8 mph
Precip.
29%
21.09
mon
Day
84°F
NW 5 mph
Precip.
17%
Night
81°F
NW 7 mph
Precip.
57%
22.09
tue
Day
86°F
NW 6 mph
Precip.
17%
Night
81°F
N 7 mph
Precip.
34%
23.09
wed
Day
86°F
E 5 mph
Precip.
19%
Night
81°F
NE 6 mph
Precip.
23%
24.09
thu
Day
84°F
E 6 mph
Precip.
17%
Night
77°F
NE 9 mph
Precip.
53%
25.09
fri
Day
81°F
E 6 mph
Precip.
13%
Night
75°F
N 9 mph
Precip.
19%
26.09
sat
Day
82°F
E 6 mph
Precip.
44%
Night
81°F
SW 6 mph
Precip.
12%

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

Sunniest months:
March 15 days
December 14 days
May 13 days
Warmest months:
July 88.4 °F
August 88.2 °F
June 85.9 °F
Warmest sea temp:
August 84.9 °F
September 84.5 °F
July 84.1 °F
Coldest months:
January 70.3 °F
December 73.3 °F
February 74.1 °F
Rainiest months:
September 4 days
May 3 days
August 3 days
Windiest months:
November 11.5 mph
April 11.3 mph
March 11.1 mph

Port St. Lucie on a weather map

Current weather
21:32
Port St. Lucie
+81°F
NW 7 mph
Feels like: +86°F
Precip.: 18%
Places in USA:
Name
°F
Boston
+66°F
Washington
+81°F
Hawaii
+79°F
Las Vegas
+91°F
Los Angeles
+77°F
Miami
+81°F
Maui
+66°F
Myrtle Beach
+82°F
New York
+77°F
Panama City Beach
+84°F
San Diego
+72°F
San Francisco
+63°F
Santa Monica
+73°F
Sarasota
+84°F
Chicago
+63°F
all places
24 Hours Forecast
Port St. Lucie
Local time: 21:32
September 14, monday
0000
81°F
N
8 mph
0300
79°F
NE
6 mph
0600
77°F
NE
5 mph
0900
81°F
NE
4 mph
1200
88°F
W
4 mph
1500
88°F
W
9 mph
1800
86°F
W
8 mph
2100
82°F
NW
7 mph
Units of measurement: °C / °F