Measurements:
°C
°F
Dauphin Island
90°F
N 14 mph
Feels like: 106°F
Precip: 8%
World Resorts USA Dauphin Island Weather

Dauphin Island Sea Water Temperature

Current Sea Water Temperature:
+90.8°F
Maximum Sea Water Temperature in August: 94.4°F
Minimum Sea Water Temperature in August: 87.4°F
Average water temperature in August: 90.8°F

Sea Water Temperature for the Last 10 Days:

August 05 90.8°F July 31 90.6°F
August 04 89.4°F July 30 90.4°F
August 03 90.6°F July 29 91.0°F
August 02 91.0°F July 28 91.0°F
August 01 90.6°F July 27 89.8°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Dauphin Island was 90.4°F. The maximum and minimum values were 87.4°F and 93.4°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 89.9 °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
September 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 +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Dauphin Island
Local time: 14:18
05 aug, wednesday
1500 90°F
N
14 mph
1800 90°F
N
13 mph
2100 88°F
N
14 mph
06 aug, thursday
0000 88°F
NE
13 mph
0300 88°F
NE
10 mph
0600 88°F
N
7 mph
0900 88°F
N
6 mph
1200 88°F
N
6 mph