Current sea water temperature:
+77.7°F
| Minimum sea water temperature in May: | 80.8°F |
| Maximum sea water temperature in May: | 70.9°F |
| Average sea water temperature in May: | 75.7°F |
| more information | |
14 days
forecast
forecast
| St. Augustine |
monthly
weather
weather
| St. Augustine |
Sea water temperature for the last 10 days:
| May 19 | 77.7°F | May 14 | 75.6°F |
| May 18 | 77.5°F | May 13 | 76.1°F |
| May 17 | 76.8°F | May 12 | 75.9°F |
| May 16 | 76.3°F | May 11 | 75.2°F |
| May 15 | 75.9°F | May 10 | 74.8°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
May
May
| 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: 08:29
May 19, tuesday
0900
77°F
W
8 mph
8 mph
1200
81°F
W
11 mph
11 mph
1500
82°F
W
9 mph
9 mph
1800
81°F
W
11 mph
11 mph
2100
77°F
W
11 mph
11 mph
May 20, wednesday
0000
75°F
NW
8 mph
8 mph
0300
73°F
NW
6 mph
6 mph
0600
73°F
NW
6 mph
6 mph
