South Bay Weather Forecast
- 64
- 69
Chance Thunderstorms
- 58
- 71
Decreasing Clouds
- 62
- 66
Mostly Sunny
- 67
- 72
Mostly Sunny
- 68
- 73
Partly Sunny
- 67
- 73
Partly Sunny
- 67
- 73
Partly Sunny
Today 17 Dec Aransas Islands
A chance of Thunderstorms. Showers. Patchy fog. Locally heavy rainfall possible late this morning. Near steady temperature in the upper 60s. East Winds 5 to 10 Mph. Chance of rain 90 percent.
Tonight 17 Dec Aransas Islands
Mostly cloudy. Patchy fog. Near steady temperature in the mid 60s. Southeast Winds around 5 Mph.
South Bay Temperature Statistics
December Temperature
Port Aransas, Mustang Beach Airport (5.6 miles)
Lowest 15 December, 2025
41.4 °FAverage December
59 °FHighest 13 December, 2025
75.7 °F
Climate (2020–Present)
Port Aransas, Mustang Beach Airport (5.6 miles)
Average Low 2020–2025
69.1 °FAverage 2020–2025
73.6 °FAverage High 2020–2025
78.4 °F