Measurements:
°C
°F
Port St. Lucie
80°F
SW 24 mph
Feels like: 82°F
Precip: 24%
World Resorts USA Port St. Lucie Weather

Port St. Lucie Sea Water Temperature

Current Sea Water Temperature:
+80.8°F
Maximum Sea Water Temperature in October: 89.8°F
Minimum Sea Water Temperature in October: 78.0°F
Average water temperature in October: 84.7°F

Sea Water Temperature for the Last 10 Days:

October 26 80.8°F October 21 85.0°F
October 25 81.6°F October 20 85.8°F
October 24 82.4°F October 19 85.6°F
October 23 83.2°F October 18 86.6°F
October 22 83.6°F October 17 87.2°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
October 3 days
May 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 +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +74
Washington +58
24 Hours Weather Forecast
Port St. Lucie
Local time: 23:52
27 oct, tuesday
0000 80°F
SW
24 mph
0300 80°F
SW
22 mph
0600 80°F
SW
22 mph
0900 80°F
SW
22 mph
1200 82°F
SW
24 mph
1500 80°F
SW
23 mph
1800 80°F
SW
25 mph
2100 80°F
SW
27 mph