Measurements:
°C
°F
Port St. Lucie
82°F
NE 4 mph
Feels like: 86°F
Precip: 11%
World Resorts USA Port St. Lucie Weather

Port St. Lucie Sea Water Temperature

Current Sea Water Temperature:
+87.8°F
Maximum Sea Water Temperature in June: 88.2°F
Minimum Sea Water Temperature in June: 81.2°F
Average water temperature in June: 85.5°F

Sea Water Temperature for the Last 10 Days:

June 24 87.8°F June 19 86.8°F
June 23 87.6°F June 18 87.2°F
June 22 86.8°F June 17 87.0°F
June 21 87.4°F June 16 87.6°F
June 20 86.8°F June 15 87.8°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
May 13 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
May 3 days
June 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
Chicago +66
Hawaii +80
Honolulu +80
Houston +82
Las Vegas +96
Los Angeles +66
Maui +74
Miami +80
Miami Beach +88
Myrtle Beach +78
New York +70
San Diego +68
San Francisco +58
Sarasota +84
Tampa +84
24 Hours Weather Forecast
Port St. Lucie
Local time: 00:24
25 jun, thursday
0300 80°F
NE
6 mph
0600 78°F
N
7 mph
0900 84°F
N
8 mph
1200 92°F
N
6 mph
1500 94°F
N
4 mph
1800 90°F
NW
12 mph
2100 82°F
N
9 mph
26 jun, friday
0000 80°F
E
3 mph