World Resorts USA Port St. Lucie Weather

Port St. Lucie sea water temperature

Current sea water temperature:
+72.3°F
Minimum sea water temperature in January: 77.4°F
Maximum sea water temperature in January: 61.7°F
Average sea water temperature in January: 71.8°F

Sea water temperature for the last 10 days:

January 11 72.3°F January 6 69.3°F
January 10 72.0°F January 5 70.2°F
January 9 69.1°F January 4 70.2°F
January 8 68.4°F January 3 69.8°F
January 7 67.6°F January 2 69.1°F

When is the warmest sea in Port St. Lucie?

Based on the data about daily sea water temperature for the last three years the warmest sea in Port St. Lucie was noticed in August, September and July.

Monthly Sea Temperatures in Port St. Lucie, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 85.4°F. The highest and lowest sea temperatures during the month were 87.1°F and 83.8°F.

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.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 82.2°F. The highest and lowest sea temperatures during the month were 85.8°F and 79.0°F.

Best time for vacation in Port St. Lucie

Sunniest months:
March 14 days
December 14 days
May 12 days
Warmest months:
July 87.5 °F
August 87.5 °F
September 85.5 °F
Warmest sea temp:
August 84.9 °F
September 84.5 °F
July 83.9 °F
Coldest months:
January 70.1 °F
December 73.3 °F
February 74.4 °F
Rainiest months:
September 4 days
June 3 days
May 2 days
Windiest months:
November 11.5 mph
April 11.3 mph
March 11.1 mph

Port St. Lucie on a weather map

Port St. Lucie
+68°F
S 19 mph
Feels like: +68°F
Precip.: 0%
Places in USA:
Name
°F
+32°F
+75°F
+75°F
+48°F
+61°F
+72°F
+75°F
+68°F
+32°F
+57°F
+50°F
+61°F
+57°F
+48°F
+30°F
24 Hours Forecast
Port St. Lucie
Local time: 23:35
January 12, monday
0000
68°F
S
19 mph
0300
66°F
SW
17 mph
0600
64°F
SW
15 mph
0900
66°F
SW
11 mph
1200
70°F
SW
11 mph
1500
68°F
SW
10 mph
1800
68°F
SW
11 mph
2100
68°F
SW
9 mph
Units of measurement: °C / °F