World Resorts USA St. Augustine Weather

St. Augustine sea water temperature

Current sea water temperature:
+79.7°F
Minimum sea water temperature in October: 82.6°F
Maximum sea water temperature in October: 71.8°F
Average sea water temperature in October: 77.7°F

Sea water temperature for the last 10 days:

October 14 79.7°F October 9 80.4°F
October 13 80.1°F October 8 80.8°F
October 12 79.9°F October 7 81.1°F
October 11 81.1°F October 6 81.7°F
October 10 80.2°F October 5 81.5°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 82.9°F. The highest and lowest sea temperatures during the month were 84.4°F and 80.8°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 88.4 °F
June 87.1 °F
Warmest sea temp:
August 83.4 °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 5 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
+79°F
SW 4 mph
Feels like: +82°F
Precip.: 6%
Places in USA:
Name
°F
+64°F
+70°F
+75°F
+52°F
+68°F
+82°F
+64°F
+72°F
+70°F
+68°F
+57°F
+64°F
+77°F
+77°F
+63°F
24 Hours Forecast
St. Augustine
Local time: 08:09
October 14, wednesday
0900
79°F
SW
4 mph
1200
81°F
SW
7 mph
1500
81°F
SW
7 mph
1800
79°F
W
8 mph
2100
79°F
W
8 mph
October 15, thursday
0000
79°F
NW
9 mph
0300
77°F
NW
7 mph
0600
77°F
NW
5 mph
Units of measurement: °C / °F