Waiheke Island Sea Temperature in December

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

Average water temperature in Waiheke Island for December

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

19.43° C

(66.97° F)

highest: 22.12° C (71.82° F)
lowest: 16.67° C (62.01° F)

At this temperature, water will feel cold compared to a swimming pool, but with a bit of experience and practice most people will find the water relatively comfortable to swim in.

Water temperature range by day in December in Waiheke Island

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

Water temperatures for December in Waiheke Island in recent years

Day	2024	2023	2022	2021
1	0° C	18.54° C	18.29° C	21.1° C
2	0° C	18.5° C	18.33° C	21.06° C
3	0° C	18.76° C	18.49° C	21.12° C
4	0° C	18.61° C	18.67° C	20.95° C
5	0° C	18.68° C	18.7° C	21.02° C
6	0° C	18.72° C	18.65° C	21.14° C
7	0° C	18.64° C	18.69° C	21.36° C
8	0° C	18.78° C	18.66° C	21.47° C
9	0° C	18.9° C	18.7° C	21.62° C
10	0° C	19.01° C	18.63° C	21.68° C
11	0° C	19.23° C	19.04° C	21.62° C
12	0° C	18.93° C	19.44° C	21.59° C
13	0° C	18.62° C	19.52° C	21.5° C
14	0° C	18.41° C	19.47° C	21.34° C
15	0° C	18.55° C	19.68° C	21.36° C
16	0° C	18.73° C	20.13° C	21.08° C
17	0° C	19.02° C	20.33° C	20.95° C
18	0° C	19.39° C	20.46° C	20.77° C
19	0° C	19.95° C	20.84° C	20.7° C
20	0° C	20.21° C	21.1° C	20.75° C
21	0° C	20.38° C	21.31° C	20.68° C
22	0° C	20.5° C	21.41° C	20.91° C
23	0° C	20.64° C	21.49° C	21.21° C
24	0° C	20.55° C	21.51° C	21.15° C
25	0° C	20.78° C	21.57° C	21.3° C
26	0° C	20.83° C	21.68° C	21.44° C
27	0° C	21.04° C	21.8° C	21.55° C
28	0° C	21.06° C	21.91° C	21.55° C
29	0° C	21.24° C	22.05° C	21.35° C
30	0° C	21.36° C	22.04° C	21.28° C
31	0° C	21.3° C	22.12° C	21.1° C