Measurements:
°C
°F
Port St. Lucie
72°F
W 14 mph
Feels like: 72°F
Precip: 0%
World Resorts USA Port St. Lucie Weather

Port St. Lucie Sea Water Temperature

Current Sea Water Temperature:
+78.6°F
Maximum Sea Water Temperature in April: 82.8°F
Minimum Sea Water Temperature in April: 73.8°F
Average water temperature in April: 79.0°F

Sea Water Temperature for the Last 10 Days:

April 03 78.6°F March 29 78.2°F
April 02 78.4°F March 28 77.8°F
April 01 78.8°F March 27 76.4°F
March 31 78.8°F March 26 76.4°F
March 30 78.6°F March 25 73.8°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Port St. Lucie was 89.4°F. The maximum and minimum values were 87.6°F and 91.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Port St. Lucie was 88.1°F. The maximum and minimum values were 86.8°F and 89.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Port St. Lucie was 85.8°F. The maximum and minimum values were 82.2°F and 89.8°F respectively.

Best Time to Visit Port St. Lucie
The most sunny months:
March 15 days
December 14 days
February 12 days
The most warm months:
July 91.7 °F
August 91.7 °F
September 89.5 °F
Warmest sea temperature:
August 88.7 °F
September 88.3 °F
July 87.6 °F
The most cold months:
January 72.6 °F
December 75.9 °F
February 76.8 °F
The most rainy months:
September 4 days
June 3 days
April 2 days
The most windy months:
November 11 mph
April 11 mph
March 11 mph

Port St. Lucie on the Weather Map

USA Resorts:
NAME
Chicago +46
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +54
Los Angeles +56
Maui +66
Miami +74
Miami Beach +78
New York +40
San Diego +58
San Francisco +50
Sarasota +72
Tampa +72
Washington +48
24 Hours Weather Forecast
Port St. Lucie
Local time: 05:49
03 apr, friday
0600 72°F
W
14 mph
0900 76°F
W
16 mph
1200 86°F
W
17 mph
1500 86°F
W
16 mph
1800 80°F
W
16 mph
2100 76°F
W
13 mph
04 apr, saturday
0000 74°F
W
14 mph
0300 74°F
W
13 mph