Measurements:
°C
°F
Dauphin Island
66°F
NW 4 mph
Feels like: 66°F
Precip: 0%
World Resorts USA Dauphin Island Weather

Dauphin Island Sea Water Temperature

Current Sea Water Temperature:
+72.2°F
Maximum Sea Water Temperature in March: 78.2°F
Minimum Sea Water Temperature in March: 59.0°F
Average water temperature in March: 66.7°F

Sea Water Temperature for the Last 10 Days:

March 13 72.2°F March 08 70.4°F
March 12 75.0°F March 07 69.6°F
March 11 73.8°F March 06 67.6°F
March 10 71.4°F March 05 67.8°F
March 09 72.6°F March 04 67.4°F

When is the Warmest Sea for Dauphin Island?

According to our data for the last three years for Dauphin Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Dauphin Island was 90.8°F. The maximum and minimum values were 88.2°F and 93.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Dauphin Island was 91.3°F. The maximum and minimum values were 89.2°F and 92.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Dauphin Island was 88.0°F. The maximum and minimum values were 86.0°F and 89.8°F respectively.

Best Time to Visit Dauphin Island
The most sunny months:
October 20 days
November 15 days
September 15 days
The most warm months:
August 90.0 °F
July 89.6 °F
June 88.1 °F
Warmest sea temperature:
August 90.8 °F
July 90.1 °F
September 87.5 °F
The most cold months:
January 56.8 °F
February 60.6 °F
December 60.6 °F
The most rainy months:
August 5 days
July 5 days
May 4 days
The most windy months:
January 12 mph
March 11 mph
February 11 mph

Dauphin Island on the Weather Map

USA Resorts:
NAME
Chicago +42
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +96
Los Angeles +100
Maui +70
Miami +84
Miami Beach +82
New York +42
San Diego +94
San Francisco +72
Sarasota +80
Tampa +80
Washington +56
24 Hours Weather Forecast
Dauphin Island
Local time: 16:09
13 mar, friday
1800 66°F
NW
2 mph
2100 66°F
N
6 mph
14 mar, saturday
0000 66°F
N
6 mph
0300 64°F
N
7 mph
0600 66°F
N
3 mph
0900 66°F
W
6 mph
1200 66°F
W
6 mph
1500 70°F
NW
6 mph