World Resorts USA St. Augustine Weather

St. Augustine sea water temperature

Current sea water temperature:
+83.7°F
Minimum sea water temperature in June: 84.6°F
Maximum sea water temperature in June: 75.7°F
Average sea water temperature in June: 80.7°F

Sea water temperature for the last 10 days:

June 28 83.7°F June 23 83.8°F
June 27 83.8°F June 22 83.7°F
June 26 83.3°F June 21 82.8°F
June 25 83.3°F June 20 82.4°F
June 24 83.1°F June 19 82.8°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.

Best time for vacation in St. Augustine

Sunniest months:
April 17 days
October 15 days
March 14 days
Warmest months:
July 88.6 °F
August 88.3 °F
June 87.1 °F
Warmest sea temp:
August 83.6 °F
September 82.8 °F
July 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
+86°F
NW 11 mph
Feels like: +97°F
Precip.: 8%
Places in USA:
Name
°F
+70°F
+79°F
+102°F
+77°F
+88°F
+88°F
+73°F
+90°F
+84°F
+72°F
+70°F
+93°F
+84°F
+95°F
+75°F
24 Hours Forecast
St. Augustine
Local time: 18:39
June 28, sunday
2100
81°F
N
11 mph
June 29, monday
0000
79°F
N
10 mph
0300
77°F
NE
8 mph
0600
77°F
E
7 mph
0900
84°F
E
7 mph
1200
93°F
S
2 mph
1500
91°F
W
8 mph
1800
86°F
N
5 mph
Units of measurement: °C / °F