The highest day temperature in December 2024 was 82°F. The lowest night temperature was 59°F. The average values for day and night temperatures during December were 74.4°F и 66.6°F respectivly.

The average sea surface temperature in December 2024 for Rio Grande was 75.5°F. The maximum and minimum values were 73.0°F and 78.6°F respectively.

Most of the days in December are cloudy but you can also expect sunny or gloomy days.

Precipitation total in December for Rio Grande is 1.1 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 13.1 mph. This value is relatively stable throughout the year.

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 Rio Grande in December is 7.9 hours.