Current sea water temperature:
+80.8°F
| Minimum sea water temperature in August: | 85.5°F |
| Maximum sea water temperature in August: | 80.6°F |
| Average sea water temperature in August: | 83.5°F |
| more information | |
14 days
forecast
forecast
| St. Augustine |
monthly
weather
weather
| St. Augustine |
Sea water temperature for the last 10 days:
| August 9 | 80.8°F | August 4 | 81.5°F |
| August 8 | 80.6°F | August 3 | 81.7°F |
| August 7 | 81.0°F | August 2 | 81.5°F |
| August 6 | 81.1°F | August 1 | 81.9°F |
| August 5 | 81.3°F | July 31 | 82.9°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, July and September.
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 July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 84.0°F. The highest and lowest sea temperatures during the month were 85.6°F and 81.9°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.
current
weather
weather
| St. Augustine |
weather in
August
August
| 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: 21:29
August 10, monday
0000
79°F
N
5 mph
5 mph
0300
77°F
N
7 mph
7 mph
0600
77°F
N
5 mph
5 mph
0900
82°F
N
6 mph
6 mph
1200
90°F
NW
6 mph
6 mph
1500
86°F
NW
10 mph
10 mph
1800
81°F
W
4 mph
4 mph
2100
79°F
NW
7 mph
7 mph
