Measurements:
°C
°F
Port St. Lucie
84°F
W 7 mph
Feels like: 92°F
Precip: 23%
World Resorts USA Port St. Lucie Weather

Port St. Lucie Sea Water Temperature

Current Sea Water Temperature:
+88.6°F
Maximum Sea Water Temperature in October: 89.8°F
Minimum Sea Water Temperature in October: 78.0°F
Average water temperature in October: 84.5°F

Sea Water Temperature for the Last 10 Days:

October 05 88.6°F September 30 86.8°F
October 04 87.8°F September 29 86.6°F
October 03 87.2°F September 28 86.4°F
October 02 87.4°F September 27 87.8°F
October 01 87.2°F September 26 88.4°F

When is the Warmest Sea for Port St. Lucie?

According to our data for the last three years for Port St. Lucie the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Port St. Lucie was 89.2°F. The maximum and minimum values were 87.2°F and 90.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Port St. Lucie was 88.6°F. The maximum and minimum values were 86.4°F and 89.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Port St. Lucie was 89.1°F. The maximum and minimum values were 87.4°F and 90.6°F respectively.

Best Time to Visit Port St. Lucie
The most sunny months:
March 15 days
December 14 days
May 13 days
The most warm months:
July 92.7 °F
August 92.5 °F
June 89.9 °F
Warmest sea temperature:
August 88.8 °F
September 88.4 °F
July 87.8 °F
The most cold months:
January 72.6 °F
December 75.9 °F
February 76.8 °F
The most rainy months:
September 5 days
May 3 days
August 3 days
The most windy months:
November 11 mph
April 11 mph
March 11 mph

Port St. Lucie on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Port St. Lucie
Local time: 19:52
05 oct, monday
2100 84°F
W
7 mph
06 oct, tuesday
0000 82°F
SW
6 mph
0300 84°F
W
5 mph
0600 84°F
NW
4 mph
0900 84°F
N
2 mph
1200 86°F
N
3 mph
1500 90°F
NW
3 mph
1800 84°F
E
4 mph