Measurements:
°C
°F
Dauphin Island
80°F
S 9 mph
Feels like: 82°F
Precip: 0%
World Resorts USA Dauphin Island Weather

Dauphin Island Sea Water Temperature

Current Sea Water Temperature:
+80.0°F
Maximum Sea Water Temperature in May: 87.8°F
Minimum Sea Water Temperature in May: 73.0°F
Average water temperature in May: 80.6°F

Sea Water Temperature for the Last 10 Days:

May 14 80.0°F May 09 76.8°F
May 13 78.4°F May 08 77.0°F
May 12 76.8°F May 07 77.2°F
May 11 78.8°F May 06 74.6°F
May 10 76.8°F May 05 74.4°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
September 15 days
November 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
Boston +56
Chicago +56
Hawaii +78
Honolulu +78
Houston +98
Las Vegas +102
Los Angeles +76
Maui +72
Miami +90
Miami Beach +92
New York +70
San Diego +72
San Francisco +72
Sarasota +96
Tampa +96
24 Hours Weather Forecast
Dauphin Island
Local time: 13:01
14 may, thursday
1500 82°F
S
2 mph
1800 82°F
E
7 mph
2100 80°F
S
11 mph
15 may, friday
0000 76°F
SW
12 mph
0300 74°F
SW
12 mph
0600 72°F
W
11 mph
0900 72°F
W
10 mph
1200 74°F
NW
9 mph