ClimateForecastJanuaryFebruary >>

The Cook Islands weather in January

Planning a journey to the Cook Islands this January and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in the Cook Islands in January?

January in the Cook Islands generally has warm temperatures, with heavy precipitation.

You can expect warm maximum daytime temperatures of around 28°C and nighttime temperatures around 25°C in Rarotonga.

In January, precipitation varies across different areas. From heavy rainfall in Penrhyn with an average of 202 mm to heavy rainfall in Pukapuka with 358 mm. Looking at the climate data spanning the last 30 years, this month sees the heaviest rainfall of the year in Rarotonga. Most areas experience a moderate amount of sunshine, with approximately 167 hours of sunlight expected in Rarotonga. This makes it neither too gloomy nor overly bright.

For a closer look at January's conditions in the Cook Islands, see the map below. For a more detailed look at the Cook Islands's yearly weather, check out our the Cook Islands climate page.

Where to go in the Cook Islands in January

Find the average weather conditions in January for the most popular destinations in the Cook Islands on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in the Cook Islands

What is the weather like in January for the 5 most popular destinations in the Cook Islands?

Average weather in Rarotonga

In January Rarotonga generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Rarotonga
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
27°C 
25°C 
173 hours 
200 mm 
13 days 
28°C 
25°C 
167 hours 
225 mm 
13 days 
28°C 
26°C 
167 hours 
209 mm 
13 days 
Climate in Rarotonga

Average weather in Arutanga

In January Arutanga generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 26°C and heavy monthly rainfall. So on average the conditions are poor that month.

Arutanga
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
28°C 
25°C 
172 hours 
223 mm 
13 days 
29°C 
26°C 
186 hours 
268 mm 
13 days 
poor 
29°C 
26°C 
156 hours 
265 mm 
13 days 
poor 
Climate in Arutanga

Average weather in Arorangi

In January Arorangi generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Arorangi
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
27°C 
25°C 
173 hours 
200 mm 
13 days 
28°C 
25°C 
167 hours 
225 mm 
13 days 
28°C 
26°C 
167 hours 
209 mm 
13 days 
Climate in Arorangi

Average weather in Avarua

In January Avarua generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Avarua
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
27°C 
25°C 
173 hours 
200 mm 
13 days 
28°C 
25°C 
167 hours 
225 mm 
13 days 
28°C 
26°C 
167 hours 
210 mm 
13 days 
Climate in Avarua

Average weather in Muri

In January Muri generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Muri
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
27°C 
24°C 
173 hours 
199 mm 
13 days 
28°C 
25°C 
167 hours 
225 mm 
13 days 
28°C 
26°C 
167 hours 
210 mm 
13 days 
Climate in Muri

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

Is January the best time to visit the Cook Islands?

In our opinion, January may not be the ideal time to visit the Cook Islands due to the typically unpleasant weather in Rarotonga.

Generally speaking, the best visiting conditions can be found in June, August, September and October offering mostly perfect weather in Rarotonga. On the other hand, the months of January, February and December tend to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in the Cook Islands. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • 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 climate conditions. Find out where to go with our weather planner.