Catalina Island Sea Temperature in December

Looking to find out what the average sea water temperature in Catalina Island is for December? Find out what the lowest, highest, and average water temperatures are for Catalina Island over the past 10 years.

Average water temperature in Catalina Island for December

The average, high, and low temperatures below should help you if you can swim in the water in Catalina Island in December.

Average

27.82° C

82.07° F

High

29.65° C

85.37° F

Low

24.46° C

76.03° F

Water temperature range by day in December in Catalina Island

The chart below shows the range of low and high temperatures by day for the month of December in Catalina Island.

Average daily water temperatures in Catalina Island for December

DayAverageLowHigh
127.76° C27.07° C28.76° C
227.74° C27.16° C28.86° C
327.7° C27.12° C28.82° C
427.7° C27.08° C28.87° C
527.69° C26.75° C28.81° C
627.78° C27.23° C28.81° C
727.86° C27.24° C28.9° C
827.95° C27.27° C28.87° C
928.04° C27.32° C29.02° C
1028.03° C27.32° C29.03° C
1127.92° C27.01° C29.1° C
1227.86° C26.3° C29.06° C
1327.97° C26.44° C29.01° C
1427.87° C26.15° C28.87° C
1527.79° C25.91° C28.85° C
1627.82° C26.36° C29.03° C
1727.9° C26.61° C29.2° C
1828.02° C26.73° C29.23° C
1927.93° C26.6° C29.14° C
2027.67° C25.52° C29.11° C
2127.58° C24.9° C29.12° C
2227.51° C24.46° C28.64° C
2327.57° C24.9° C28.69° C
2427.69° C26.23° C28.86° C
2527.83° C27.29° C28.79° C
2627.91° C27.43° C28.99° C
2727.93° C26.93° C29.22° C
2827.88° C26.89° C29.46° C
2927.8° C26.34° C29.51° C
3027.82° C26.11° C29.65° C
3127.87° C25.41° C29.41° C

Water temperature in December for locations near Catalina Island

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Catalina Island comes from the National Oceanic and Atmospheric Administration (NOAA) and their 1/4° daily Optimum Interpolation Sea Surface Temperature.

The water temperature data is constructed by combining observations from different platforms (satellites, ships, buoys, and Argo floats) on a regular global grid. A spatially complete sea surface temperature map is then built by interpolating to fill in gaps in the data.

If you'd like to use any of the information above in the format it is presented, please use the citation tool below.