Current sea water temperature:
+64.8°F
| Minimum sea water temperature in December: | 70.9°F |
| Maximum sea water temperature in December: | 57.9°F |
| Average sea water temperature in December: | 64.8°F |
| more information | |
14 days
forecast
forecast
| St. Augustine |
monthly
weather
weather
| St. Augustine |
Sea water temperature for the last 10 days:
| December 30 | 64.8°F | December 25 | 62.1°F |
| December 29 | 65.1°F | December 24 | 61.9°F |
| December 28 | 63.9°F | December 23 | 63.3°F |
| December 27 | 64.2°F | December 22 | 63.1°F |
| December 26 | 63.3°F | December 21 | 63.3°F |
Monthly sea water temperature, °F
When is the warmest sea in St. Augustine?
Based on the data about daily sea water temperature for the last three years the warmest sea in St. Augustine was noticed in August, September and July.
Monthly Sea Temperatures in St. Augustine, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 84.7°F. The highest and lowest sea temperatures during the month were 85.5°F and 83.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 81.8°F. The highest and lowest sea temperatures during the month were 84.7°F and 78.8°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 80.9°F. The highest and lowest sea temperatures during the month were 84.6°F and 78.6°F.
current
weather
weather
| St. Augustine |
weather in
January
January
| St. Augustine |
Best time for vacation in St. Augustine
St. Augustine on a weather map
Places in USA:
Name
°F
24 Hours Forecast
St. Augustine
Local time: 15:36
December 30, tuesday
1800
55°F
SE
9 mph
9 mph
2100
48°F
SE
9 mph
9 mph
December 31, wednesday
0000
45°F
SE
9 mph
9 mph
0300
43°F
SE
10 mph
10 mph
0600
39°F
SE
8 mph
8 mph
0900
43°F
SE
9 mph
9 mph
1200
50°F
SE
7 mph
7 mph
1500
55°F
E
8 mph
8 mph
