Measurements:
°C
°F
Avarua 
82°F
S 6 mph
Feels like: 86°F
Precip: 0%
World Resorts Cook Islands Avarua  Weather December Weather in Avarua 

Avarua  Weather: December

Average Day Temperature: 83.7°F
Average Night Temperature: 80.9°F
Sea Water Temperature: 82.9°F
Number of Sunny Days: 3 days
Sunshine Hours: 13.3 - 13.4 hours
Number of Rainy Days: 7 days
Precipitation Totals: 6.7 in

Air Temperature in December, °F

Select Year: 2025 2024 2023

The highest day temperature in December 2025 was 83°F. The lowest night temperature was 77°F. The average values for day and night temperatures during December were 79.8°F и 79.4°F respectivly.

Avarua  Water Sea Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Avarua  was 82.4°F. The maximum and minimum values were 81.6°F and 83.0°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in December, in

Precipitation total in December for Avarua  is 6.7 in. It makes december one of the most rainy months of the year.

Wind Speed in December, mph

The average wind speed in December is 14.7 mph.

Average Sunny Hours Per Day

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 Avarua  in December is 5.6 hours.

Best Time to Visit Avarua 
The most sunny months:
September 5 days
August 5 days
July 5 days
The most warm months:
March 87.2 °F
February 86.7 °F
January 86.0 °F
Warmest sea temperature:
March 85.8 °F
February 85.4 °F
April 85.0 °F
The most cold months:
August 77.6 °F
September 78.1 °F
October 78.8 °F
The most rainy months:
March 11 days
February 9 days
January 8 days
The most windy months:
October 16 mph
May 15 mph
September 15 mph

Avarua  on the Weather Map

Cook Islands Resorts:
NAME
Avarua  +82
24 Hours Weather Forecast
Avarua 
Local time: 10:02
10 jan, saturday
1200 82°F
S
6 mph
1500 84°F
E
4 mph
1800 84°F
NE
6 mph
2100 82°F
NW
5 mph
11 jan, sunday
0000 82°F
NW
7 mph
0300 82°F
NE
4 mph
0600 82°F
N
9 mph
0900 82°F
NW
12 mph