Current sea water temperature:
+73.8°F
| Minimum sea water temperature in December: | 78.6°F |
| Maximum sea water temperature in December: | 68.2°F |
| Average sea water temperature in December: | 74.3°F |
| more information | |
14 days
forecast
forecast
| Port St. Lucie |
monthly
weather
weather
| Port St. Lucie |
Sea water temperature for the last 10 days:
| December 16 | 73.8°F | December 11 | 73.8°F |
| December 15 | 75.2°F | December 10 | 75.6°F |
| December 14 | 73.2°F | December 9 | 75.7°F |
| December 13 | 73.9°F | December 8 | 75.0°F |
| December 12 | 74.5°F | December 7 | 73.6°F |
Monthly sea water temperature, °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.
current
weather
weather
| Port St. Lucie |
weather in
December
December
| Port St. Lucie |
Best time for vacation in Port St. Lucie
Port St. Lucie on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Port St. Lucie
Local time: 08:53
December 16, tuesday
0900
59°F
SW
10 mph
10 mph
1200
70°F
W
14 mph
14 mph
1500
73°F
W
13 mph
13 mph
1800
73°F
W
11 mph
11 mph
2100
68°F
W
13 mph
13 mph
December 17, wednesday
0000
68°F
W
11 mph
11 mph
0300
68°F
W
13 mph
13 mph
0600
68°F
W
11 mph
11 mph
