World Resorts USA St. Augustine Weather

St. Augustine Sea Temperature in August

Average sea water temperature in August:
+83.6°F
Minimum sea water temperature in August: 85.5°F
Maximum sea water temperature in August: 81.1°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
Sanibel Island 88.8°F 87.3°F
Everglades 88.8°F 87.0°F
Islamorada 88.8°F 87.3°F
Key West 88.8°F 87.8°F
Key Largo 88.7°F 87.3°F
Marco Island 88.7°F 87.1°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°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
Galveston 87.9°F 88.3°F
Galveston Island 87.8°F 88.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F

Best time for vacation in St. Augustine

Sunniest months:
October 15 days
April 15 days
March 14 days
Warmest months:
July 88.6 °F
August 88.3 °F
June 87.0 °F
Warmest sea temp:
August 83.6 °F
September 82.8 °F
July 82.8 °F
Coldest months:
January 63.6 °F
December 66.5 °F
February 68.6 °F
Rainiest months:
July 5 days
September 4 days
August 4 days
Windiest months:
October 6.8 mph
December 6.8 mph
January 6.7 mph

St. Augustine on a weather map

St. Augustine
+61°F
E 6 mph
Feels like: +61°F
Precip.: 0%
Places in USA:
Name
°F
+48°F
+73°F
+73°F
+45°F
+52°F
+64°F
+64°F
+68°F
+36°F
+54°F
+46°F
+59°F
+59°F
+59°F
+30°F
24 Hours Forecast
St. Augustine
Local time: 01:42
December 29, monday
0300
61°F
E
6 mph
0600
59°F
NE
6 mph
0900
63°F
NE
8 mph
1200
68°F
E
11 mph
1500
70°F
E
12 mph
1800
68°F
SE
12 mph
2100
66°F
SE
13 mph
December 30, tuesday
0000
57°F
SE
14 mph
Units of measurement: °C / °F