Current sea water temperature:
+86.9°F
| Minimum sea water temperature in September: | 88.0°F |
| Maximum sea water temperature in September: | 80.1°F |
| Average sea water temperature in September: | 85.4°F |
| more information | |
14 days
forecast
forecast
| Mustang Island |
monthly
weather
weather
| Mustang Island |
Sea water temperature for the last 10 days:
| September 22 | 86.9°F | September 17 | 86.2°F |
| September 21 | 86.5°F | September 16 | 86.0°F |
| September 20 | 86.4°F | September 15 | 86.7°F |
| September 19 | 86.2°F | September 14 | 86.7°F |
| September 18 | 86.0°F | September 13 | 86.2°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 85.0°F. The highest and lowest sea temperatures during the month were 86.4°F and 83.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 86.3°F. The highest and lowest sea temperatures during the month were 86.9°F and 85.6°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 84.4°F. The highest and lowest sea temperatures during the month were 86.2°F and 82.2°F.
current
weather
weather
| Mustang Island |
weather in
September
September
| 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: 00:26
September 23, wednesday
0300
84°F
NW
8 mph
8 mph
0600
84°F
W
7 mph
7 mph
0900
84°F
W
12 mph
12 mph
1200
84°F
W
13 mph
13 mph
1500
84°F
W
16 mph
16 mph
1800
86°F
W
16 mph
16 mph
2100
86°F
W
16 mph
16 mph
September 24, thursday
0000
84°F
W
14 mph
14 mph
