Current sea water temperature:
+83.5°F
| Minimum sea water temperature in September: | 85.6°F |
| Maximum sea water temperature in September: | 78.8°F |
| Average sea water temperature in September: | 82.8°F |
| more information | |
14 days
forecast
forecast
| St. Augustine |
monthly
weather
weather
| St. Augustine |
Sea water temperature for the last 10 days:
| September 19 | 83.5°F | September 14 | 84.0°F |
| September 18 | 83.5°F | September 13 | 84.4°F |
| September 17 | 83.5°F | September 12 | 84.0°F |
| September 16 | 84.0°F | September 11 | 84.2°F |
| September 15 | 84.0°F | September 10 | 84.2°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 82.1°F. The highest and lowest sea temperatures during the month were 84.4°F and 80.4°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:
2026
2025
2024
The average sea water temperature in September of 2026 was 83.2°F. The highest and lowest sea temperatures during the month were 84.4°F and 81.0°F.
current
weather
weather
| St. Augustine |
weather in
September
September
| 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: 05:17
September 19, saturday
0600
79°F
W
6 mph
6 mph
0900
79°F
W
8 mph
8 mph
1200
82°F
SW
8 mph
8 mph
1500
82°F
W
8 mph
8 mph
1800
82°F
W
9 mph
9 mph
2100
81°F
W
7 mph
7 mph
September 20, sunday
0000
81°F
W
8 mph
8 mph
0300
79°F
NW
7 mph
7 mph
