Current sea water temperature:
+85.6°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: | 85.3°F |
| more information | |
14 days
forecast
forecast
| Mustang Island |
monthly
weather
weather
| Mustang Island |
Sea water temperature for the last 10 days:
| September 2 | 85.6°F | August 28 | 84.2°F |
| September 1 | 85.8°F | August 27 | 85.3°F |
| August 31 | 85.8°F | August 26 | 84.4°F |
| August 30 | 84.2°F | August 25 | 85.1°F |
| August 29 | 84.9°F | August 24 | 84.7°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:
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:
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: 08:47
September 02, wednesday
0900
82°F
N
12 mph
12 mph
1200
82°F
N
11 mph
11 mph
1500
84°F
NW
12 mph
12 mph
1800
84°F
NW
15 mph
15 mph
2100
84°F
NW
21 mph
21 mph
September 03, thursday
0000
84°F
N
18 mph
18 mph
0300
82°F
N
16 mph
16 mph
0600
82°F
N
15 mph
15 mph
