Measurements:
°C
°F
Port Aransas
80°F
NW 12 mph
Feels like: 84°F
Precip: 0%
World Resorts USA Port Aransas Weather

Port Aransas Sea Water Temperature

Current Sea Water Temperature:
+77.2°F
Maximum Sea Water Temperature in April: 81.4°F
Minimum Sea Water Temperature in April: 69.2°F
Average water temperature in April: 75.8°F

Sea Water Temperature for the Last 10 Days:

April 23 77.2°F April 18 79.8°F
April 22 77.6°F April 17 79.0°F
April 21 79.0°F April 16 78.8°F
April 20 79.4°F April 15 77.8°F
April 19 79.6°F April 14 78.8°F

When is the Warmest Sea for Port Aransas?

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

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 Port Aransas was 90.4°F. The maximum and minimum values were 88.6°F and 91.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Port Aransas was 89.7°F. The maximum and minimum values were 88.0°F and 91.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Port Aransas was 88.3°F. The maximum and minimum values were 86.4°F and 90.2°F respectively.

Best Time to Visit Port Aransas
The most sunny months:
October 17 days
August 16 days
July 14 days
The most warm months:
August 92.2 °F
July 90.9 °F
June 90.0 °F
Warmest sea temperature:
August 90.4 °F
September 89.2 °F
July 88.8 °F
The most cold months:
January 63.5 °F
February 64.6 °F
December 68.5 °F
The most rainy months:
July 3 days
May 2 days
September 2 days
The most windy months:
April 14 mph
May 14 mph
March 14 mph

Port Aransas on the Weather Map

USA Resorts:
NAME
Chicago +70
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +68
Los Angeles +64
Maui +70
Miami +82
Miami Beach +82
New York +76
San Diego +66
San Francisco +58
Sarasota +88
Tampa +86
Washington +82
24 Hours Weather Forecast
Port Aransas
Local time: 11:11
23 apr, thursday
1200 80°F
NW
12 mph
1500 80°F
NW
14 mph
1800 78°F
NW
15 mph
2100 76°F
NW
17 mph
24 apr, friday
0000 78°F
NW
17 mph
0300 78°F
NW
13 mph
0600 76°F
N
16 mph
0900 78°F
N
14 mph