World Resorts USA St. Augustine Weather

St. Augustine Sea Temperature in August

Average sea water temperature in August:
+83.5°F
Minimum sea water temperature in August: 85.5°F
Maximum sea water temperature in August: 80.6°F

Daily 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.

Monthly sea water temperature in St. Augustine, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Key West 88.8°F 87.8°F
Naples 88.7°F 87.0°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
West Palm Beach 86.8°F 86.2°F
Cocoa Beach 86.8°F 84.5°F
Pensacola Beach 86.6°F 87.4°F
St. George Island 86.5°F 86.8°F
Panama City Beach 86.2°F 86.8°F
Destin 86.0°F 86.9°F
Fort Walton Beach 86.0°F 86.8°F
Santa Rosa Beach 85.9°F 86.8°F
Hilton Head Island 85.0°F 84.0°F

Best time for vacation in St. Augustine

Sunniest months:
April 17 days
October 15 days
March 14 days
Warmest months:
July 89.1 °F
August 88.3 °F
June 87.1 °F
Warmest sea temp:
August 83.6 °F
July 82.9 °F
September 82.8 °F
Coldest months:
January 63.1 °F
December 66.3 °F
February 67.8 °F
Rainiest months:
July 5 days
September 4 days
August 4 days
Windiest months:
January 7.0 mph
April 6.9 mph
December 6.8 mph

St. Augustine on a weather map

St. Augustine
+81°F
NW 8 mph
Feels like: +88°F
Precip.: 14%
Places in USA:
Name
°F
+79°F
+88°F
+81°F
+108°F
+84°F
+82°F
+77°F
+81°F
+82°F
+79°F
+64°F
+77°F
+82°F
+82°F
+72°F
24 Hours Forecast
St. Augustine
Local time: 22:25
August 10, monday
0000
79°F
N
5 mph
0300
77°F
N
7 mph
0600
77°F
N
5 mph
0900
82°F
N
6 mph
1200
90°F
NW
6 mph
1500
86°F
NW
10 mph
1800
81°F
W
4 mph
2100
79°F
NW
7 mph
Units of measurement: °C / °F