New Britain Island — Water Temperature in December

Water Temperature Range

29°C

minimum

31°C

average

32°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2025	2024	2023	2022
DEC 1	30°C	30°C	30°C	30°C
DEC 2	30°C	30°C	30°C	30°C
DEC 3	30°C	30°C	30°C	30°C
DEC 4	30°C	30°C	30°C	30°C
DEC 5	31°C	31°C	31°C	30°C
DEC 6	31°C	31°C	31°C	30°C
DEC 7	31°C	31°C	31°C	30°C
DEC 8	31°C	31°C	31°C	30°C
DEC 9	31°C	31°C	31°C	31°C
DEC 10	31°C	31°C	30°C	31°C
DEC 11	30°C	30°C	30°C	30°C
DEC 12	31°C	31°C	31°C	30°C
DEC 13	30°C	30°C	31°C	29°C
DEC 14	30°C	30°C	31°C	29°C
DEC 15	31°C	31°C	31°C	30°C
DEC 16	31°C	31°C	31°C	30°C
DEC 17	30°C	30°C	30°C	29°C
DEC 18	30°C	30°C	30°C	30°C
DEC 19	30°C	30°C	30°C	30°C
DEC 20	30°C	30°C	30°C	29°C
DEC 21	30°C	30°C	30°C	30°C
DEC 22	30°C	30°C	30°C	30°C
DEC 23	30°C	30°C	30°C	29°C
DEC 24	30°C	30°C	30°C	30°C
DEC 25	30°C	30°C	30°C	29°C
DEC 26	30°C	30°C	31°C	29°C
DEC 27	30°C	30°C	30°C	29°C
DEC 28	30°C	30°C	30°C	30°C
DEC 29	30°C	30°C	30°C	29°C
DEC 30	30°C	30°C	30°C	30°C
DEC 31	31°C	31°C	31°C	30°C

December: Climate and Swimming Opportunities

Average Night Air Temperature

24°C

Average Day Air Temperature

31°C

Precipitation Amount per Month

180 mm

Number of Rainy Days

Daylight per Day

13 hrs

Sunshine per Day

8 hrs

Average Wind Speed

13 km/h

Average Humidity

65%

At such water and air temperatures, swimming feels truly comfortable and relaxing. The warm water won’t cool you down, so you can stay in for a long time without getting chilled.