The weather in January in Cook Islands

It's hot in January in Cook Islands with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 24°C and 26°C.

Looking for sun? January isn’t a good month to be in Cook Islands. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Cook Islands. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 33°C in 2018, Cook Islands reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 25°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 19°C to a highest value of 27°C.

Rainfall amount

In January, there is an average of 204 mm of precipitation, spread over 21 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in January for Cook Islands

Click on any day in January to get detailed info about the usual weather on that day in Cook Islands. Check out the historical temperatures and precipitation over the past 10 years on this day.

January weather comparison

  Cook Islands New York
Average temperature 30°C 5°C
Max. temperature 31°C 11°C
Min. temperature 24°C -5°C
Total precipitation 204 mm 97 mm
Rainy days 21 days 12 days

Start of January

The month of January starts in Cook Islands with hot temps, averaging around 30°C during the day and nights around 25°C.

Mid January

By mid-January, daytime temps stay steady at around 30°C, with nights around 25°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of January

By the end of January, the average daytime temperature in Cook Islands is around 30°C, while nighttime temps are about 25°C. There’s a significant chance of many days with precipitation.

Find affordable vacations to Cook Islands

UV index

The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Cook Islands for all months and discover the best travel time

The climate in Cook Islands is based on weather data from Avarua. Other spots might have different weather. You can check out all destinations in Cook Islands to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in January in Cook Islands. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in January in Cook Islands

Temperature in January in Cook Islands over the years

Precipitation charts

These charts show the average amount of precipitation in January in Cook Islands. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in January in Cook Islands

Total precipitation in January in Cook Islands over the years

Daily UV index in January in Cook Islands

This chart shows the average daily UV index in January in Cook Islands, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in January in Cook Islands

Have you been to Cook Islands in January?

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Average weather in Cook Islands by month

Click on a month below to see detailed weather info for Cook Islands. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.