Current sea water temperature:
+70.0°F
| Minimum sea water temperature in December: | 73.4°F |
| Maximum sea water temperature in December: | 56.5°F |
| Average sea water temperature in December: | 66.3°F |
| more information | |
14 days
forecast
forecast
| Mustang Island |
monthly
weather
weather
| Mustang Island |
Sea water temperature for the last 10 days:
| December 30 | 70.0°F | December 25 | 69.6°F |
| December 29 | 70.3°F | December 24 | 68.2°F |
| December 28 | 70.3°F | December 23 | 67.3°F |
| December 27 | 69.3°F | December 22 | 65.1°F |
| December 26 | 69.6°F | December 21 | 64.9°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
January
January
| 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: 16:56
December 30, tuesday
1800
57°F
S
6 mph
6 mph
2100
50°F
SW
3 mph
3 mph
December 31, wednesday
0000
48°F
NE
1 mph
1 mph
0300
46°F
E
1 mph
1 mph
0600
43°F
E
2 mph
2 mph
0900
46°F
S
3 mph
3 mph
1200
59°F
N
2 mph
2 mph
1500
66°F
N
7 mph
7 mph
