Henderson Island Sea Temperature in December

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

Average water temperature in Henderson Island for December

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

25.26° C

(77.47° F)

highest: 27.34° C (81.21° F)
lowest: 23.01° C (73.42° F)

This water temperature is comparable to that of a swimming pool, but it might be higher than most open water swimmers prefer for serious swimming. Make sure to drink plenty of water before and after swimming and don't wear a wetsuit to avoid overheating.

Water temperature range by day in December in Henderson Island

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

Water temperatures for December in Henderson Island in recent years

Day	2024	2023	2022	2021
1	0° C	24.63° C	24.4° C	25° C
2	0° C	24.62° C	24.48° C	24.98° C
3	0° C	24.55° C	24.57° C	25° C
4	0° C	24.69° C	24.61° C	25.09° C
5	0° C	24.78° C	24.59° C	25.2° C
6	0° C	24.82° C	24.69° C	25.28° C
7	0° C	24.9° C	24.82° C	25.23° C
8	0° C	24.91° C	24.62° C	25.13° C
9	0° C	24.9° C	24.78° C	24.97° C
10	0° C	24.8° C	24.93° C	24.97° C
11	0° C	24.88° C	25.03° C	25.05° C
12	0° C	24.82° C	25.06° C	25.1° C
13	0° C	24.73° C	25.12° C	25.04° C
14	0° C	24.75° C	25.33° C	25.11° C
15	0° C	24.76° C	25.44° C	25.19° C
16	0° C	24.71° C	25.73° C	25.18° C
17	0° C	24.74° C	25.76° C	25.22° C
18	0° C	24.65° C	25.69° C	25.32° C
19	0° C	24.66° C	25.67° C	24.95° C
20	0° C	24.52° C	25.65° C	24.96° C
21	0° C	24.7° C	25.6° C	25.08° C
22	0° C	24.73° C	25.86° C	25.27° C
23	0° C	24.97° C	26.04° C	25.58° C
24	0° C	24.86° C	26.13° C	25.65° C
25	0° C	24.82° C	26.23° C	25.64° C
26	0° C	24.81° C	26.32° C	25.57° C
27	0° C	24.74° C	26.36° C	25.5° C
28	0° C	24.53° C	26.43° C	25.5° C
29	0° C	24.68° C	26.53° C	25.6° C
30	0° C	24.7° C	26.49° C	25.73° C
31	0° C	24.93° C	26.53° C	25.86° C

Data source and citation

Raw data for the calculations made to find the sea surface temperature in Henderson 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.

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