Current sea water temperature:
+66.9°F
| Minimum sea water temperature in March: | 75.2°F |
| Maximum sea water temperature in March: | 56.3°F |
| Average sea water temperature in March: | 66.5°F |
| more information | |
14 days
forecast
forecast
| Mustang Island |
monthly
weather
weather
| Mustang Island |
Sea water temperature for the last 10 days:
| March 18 | 66.9°F | March 13 | 72.1°F |
| March 17 | 67.8°F | March 12 | 74.7°F |
| March 16 | 70.2°F | March 11 | 71.8°F |
| March 15 | 71.2°F | March 10 | 72.3°F |
| March 14 | 70.2°F | March 9 | 72.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Mustang Island?
Based on the data about daily sea water temperature for the last three years the warmest sea in Mustang Island was noticed in August, September and July.
Monthly Sea Temperatures in Mustang Island, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 86.3°F. The highest and lowest sea temperatures during the month were 87.4°F and 84.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 86.0°F. The highest and lowest sea temperatures during the month were 88.0°F and 84.2°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 84.2°F. The highest and lowest sea temperatures during the month were 86.0°F and 82.0°F.
current
weather
weather
| Mustang Island |
weather in
March
March
| Mustang Island |
Best time for vacation in Mustang Island
Mustang Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mustang Island
Local time: 22:06
March 19, thursday
0000

64°F
NW
12 mph
12 mph
0300

64°F
N
13 mph
13 mph
0600

66°F
N
11 mph
11 mph
0900

66°F
N
9 mph
9 mph
1200

70°F
N
7 mph
7 mph
1500

70°F
NW
11 mph
11 mph
1800

72°F
NW
11 mph
11 mph
2100

68°F
N
12 mph
12 mph




























