Weather in Port Aransas: January
| Average day temperature: | 62.1°F | |
| Average night temperature: | 58.3°F | |
| Sea water temperature: | 61.8°F | |
| Number of sunny days: | 12 days | |
| Day length: | 10.4 - 10.9 hours | |
| Number of rainy days: | 2 days | |
| Precipitation totals: | 0.6 in. | |
| more information | ||
forecast
| Port Aransas |
temperature
| Port Aransas |
Air temperature in January, °F
The highest day temperature during January of 2026 was 81°F. At the same time the lowest night temperature was 30°F. Daily and nightly averages during January were 63.6°F and 55.2°F.
Sea water temperature in Port Aransas in January, °F
The average sea water temperature in January of 2026 was 64.6°F. The highest and lowest sea temperatures during the month were 69.4°F and 57.4°F.
Number of sunny, partly cloudy and cloudy days in January is almost equal.
Precipitation total in January, in.
Precipitation total value in Port Aransas in January is 0.6 in. Other months of the year show relatively similar values.
The average wind speed value in January is 12.8 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 5.6.
Best time for vacation in Port Aransas
Port Aransas on a weather map

12 mph

12 mph

11 mph

11 mph

9 mph

5 mph

11 mph

9 mph





























