Mustang Island Weather: August
 |
Average Day Temperature: | 94.0°F |
|
Average Night Temperature: | 86.8°F |
|
Sea Water Temperature: | 90.4°F |
|
Number of Sunny Days: | 16 days |
| Sunshine Hours: | 12.7 - 13.4 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.7 in | |
| detailed information | ||
forecast
| Mustang Island |
Temperature
| Mustang Island |
Air Temperature in August, °F
The highest day temperature in August 2025 was 99°F. The lowest night temperature was 81°F. The average values for day and night temperatures during August were 94.9°F и 85.9°F respectivly.
Mustang Island Water Sea Temperature in August, °F
The average sea surface temperature in August 2025 for Mustang Island was 90.3°F. The maximum and minimum values were 88.4°F and 91.6°F respectively.
Most of the days in August are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in August, in
Precipitation total in August for Mustang Island is 0.7 in.
The average wind speed in August is 11.1 mph. It makes August one of the most windless months of the year for Mustang Island.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Mustang Island in August is 9.0 hours.
Mustang Island on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0300 |  |
48°F | S 14 mph |
| 0600 | |
48°F | S 13 mph |
| 0900 | |
48°F | S 11 mph |
| 1200 |  |
54°F | S 7 mph |
| 1500 | |
60°F | SW 5 mph |
| 1800 | |
60°F | SW 6 mph |
| 2100 | |
56°F | SW 7 mph |
| 0000 | |
58°F | SW 6 mph |