Rarotonga

Aitutaki Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Aitutaki, the Cook Islands in December.

Thinking about venturing to Aitutaki, the Cook Islands this December and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Aitutaki in December

Aitutaki, the Cook Islands is a region in the Cook Islands. December in Aitutaki generally has warm temperatures, with heavy precipitation.

Temperatures

The average maximum temperatures are warm and range from 27°C (81°F) in Rarotonga to 29°C (84°F) in Rakahanga. Nighttime temperatures generally drop to 26°C (79°F) in Rakahanga and 25°C (77°F) in Rarotonga.

For specific regional insights in Aitutaki, the Cook Islands, refer to the map provided below.

Precipitation

In December, precipitation varies across different areas. From heavy rainfall in Avarua with an average of 200 mm (7.9 in) to heavy rainfall in Rakahanga with 267 mm (11 in).

Average sunshine

Sunshine is moderately available across various locations. In Rarotonga, you can expect around 173 hours of sunlight in December, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Aitutaki by month

Best Places to Visit in Aitutaki in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Aitutaki.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Aitutaki

What is the weather like in December for some of the most popular destinations in Aitutaki, the Cook Islands?

Temperature range in Aitutaki (December)

Precipitation variation in Aitutaki (December)

Rarotonga

In December Rarotonga generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

November
December
January
Max temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Min temperature
24°C (75°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
175 hours
173 hours
167 hours
Monthly rainfall
113 mm (4.4 in)
200 mm (7.9 in)
225 mm (8.9 in)
Monthly rainy days
12 days
13 days
13 days
Weather conditions

Arutanga

In December Arutanga generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

November
December
January
Max temperature
28°C (82°F)
28°C (82°F)
29°C (84°F)
Min temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Monthly sun hours
163 hours
172 hours
186 hours
Monthly rainfall
129 mm (5.1 in)
223 mm (8.8 in)
268 mm (11 in)
Monthly rainy days
13 days
13 days
13 days
Weather conditions

Avarua

In December Avarua generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

November
December
January
Max temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Min temperature
24°C (75°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
175 hours
173 hours
167 hours
Monthly rainfall
114 mm (4.5 in)
200 mm (7.9 in)
225 mm (8.9 in)
Monthly rainy days
12 days
13 days
13 days
Weather conditions

Aitutaki

In December Aitutaki generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

November
December
January
Max temperature
28°C (82°F)
28°C (82°F)
29°C (84°F)
Min temperature
25°C (77°F)
25°C (77°F)
26°C (79°F)
Monthly sun hours
163 hours
172 hours
186 hours
Monthly rainfall
130 mm (5.1 in)
222 mm (8.7 in)
269 mm (11 in)
Monthly rainy days
13 days
13 days
13 days
Weather conditions

Rakahanga

In December Rakahanga generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
29°C (84°F)
29°C (84°F)
29°C (84°F)
Min temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Monthly rainfall
182 mm (7.2 in)
267 mm (11 in)
281 mm (11 in)
Monthly rainy days
14 days
14 days
14 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Aitutaki, in the Cook Islands.

In our records: the Cook Islands December extremes

Notable December records observed across cities in the Cook Islands in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest December night in the Cook Islands dropped to 5°C (41°F) in Aitutaki on December 3, 2016.

Popular cities in December

Day & night temperatures, rainfall and average weather in Aitutaki in December.

City Weather Day temp Night temp Rainfall
Rarotonga 27°C (81°F) 25°C (77°F) 200 mm (7.9 in)
Arutanga 28°C (82°F) 25°C (77°F) 223 mm (8.8 in)
Rakahanga 29°C (84°F) 26°C (79°F) 267 mm (11 in)
Avarua 27°C (81°F) 25°C (77°F) 200 mm (7.9 in)
Aitutaki 28°C (82°F) 25°C (77°F) 222 mm (8.7 in)

Aitutaki weather in December: frequently asked questions

What is the weather like in Aitutaki, the Cook Islands in December?

In December, Aitutaki, the Cook Islands generally has unpleasant weather conditions. Rarotonga sees daytime temperatures near 27°C (81°F), with nights cooling to roughly 25°C (77°F).

What is the average temperature in Aitutaki, the Cook Islands in December?

Daytime temperatures in Rarotonga peak at roughly 27°C (81°F) in December, dropping to about 25°C (77°F) overnight.

Does Aitutaki, the Cook Islands get a lot of rain in December?

Yes. December brings heavy rainfall to Aitutaki, the Cook Islands, with Rarotonga averaging around 200 mm (7.9 in). Expect frequent showers and pack accordingly.

Is December a Good Time to Visit Aitutaki, the Cook Islands?

Given the typically unpleasant weather conditions in Rarotonga, December may not be the ideal time to visit Aitutaki, the Cook Islands.

On average, the best time to visit Aitutaki, the Cook Islands is in June, August, September and October with generally perfect weather in Rarotonga. In contrast, January, February and December tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Aitutaki.

Weather and climate has detailed information for every country in the world. Are you going to the Cook Islands? Get detailed historical weather averages for many cities in the Cook Islands.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.