Measurements:
°C
°F
Port Aransas
88°F
N 12 mph
Feels like: 100°F
Precip: 18%
World Resorts USA Port Aransas Weather

Port Aransas Sea Water Temperature

Current Sea Water Temperature:
+90.8°F
Maximum Sea Water Temperature in September: 91.8°F
Minimum Sea Water Temperature in September: 83.6°F
Average water temperature in September: 89.3°F

Sea Water Temperature for the Last 10 Days:

September 15 90.8°F September 10 91.0°F
September 14 91.0°F September 09 91.0°F
September 13 90.6°F September 08 90.8°F
September 12 90.2°F September 07 91.0°F
September 11 90.8°F September 06 90.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Port Aransas was 89.2°F. The maximum and minimum values were 86.6°F and 90.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Port Aransas was 90.4°F. The maximum and minimum values were 89.4°F and 91.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Port Aransas was 88.4°F. The maximum and minimum values were 87.0°F and 90.2°F respectively.

Best Time to Visit Port Aransas
The most sunny months:
August 18 days
October 17 days
July 15 days
The most warm months:
August 92.2 °F
July 91.2 °F
June 90.0 °F
Warmest sea temperature:
August 90.2 °F
September 89.2 °F
July 88.7 °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
June 14 mph

Port Aransas on the Weather Map

USA Resorts:
NAME
Boston +64
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +74
Maui +66
Miami +92
Myrtle Beach +86
New York +72
Panama City Beach +90
San Diego +72
San Francisco +60
Santa Monica +72
Sarasota +94
Washington +76
24 Hours Weather Forecast
Port Aransas
Local time: 09:37
15 sep, tuesday
1200 88°F
N
11 mph
1500 90°F
NW
14 mph
1800 90°F
NW
14 mph
2100 88°F
NW
16 mph
16 sep, wednesday
0000 88°F
NW
16 mph
0300 88°F
NW
12 mph
0600 88°F
NW
8 mph
0900 88°F
NW
7 mph