The highest day temperature in December 2023 was 98°F. The lowest night temperature was 80°F. The average values for day and night temperatures during December were 95.3°F и 82.7°F respectivly.

The average sea surface temperature in December 2023 for Surabaya was 91.7°F. The maximum and minimum values were 90.8°F and 93.0°F respectively.

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

Precipitation total in December for Surabaya is 7.0 in. It makes december one of the most rainy months of the year.

The average wind speed in December is 5.2 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 Surabaya in December is 7.2 hours.