Rarotonga Climate by Month
Rarotonga has pretty similar weather over the course of the year.
It also has a notably wet climate with much precipitation.
Let’s explore the climate details in depth to provide you with a complete overview.
Average day and night temperature
In Rarotonga temperatures are generally consistent throughout the year. Average daytime temperatures range from a comfortable 28°C in March, the warmest time of the year, to a comfortable 25°C during cooler months like August. At night, temperatures typically average around 22°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Rarotonga experiences significant rainfall throughout the year, averaging 1681 mm of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, January receives heavy rainfall, averaging 225 mm of precipitation, recorded across 13 rainy days. In contrast, the drier season, June brings less rainfall, with 75 mm over 11 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Year-round, Rarotonga offers plenty of sunlight to enjoy during your holiday. The difference between the sunniest month, August, with 6.4 hours of daily sunshine, and May, the least sunny month, with 5.4 hours, is minimal.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is high throughout the year in Rarotonga.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Rarotonga ranges from 3°C in March to 5°C in September.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Rarotonga in the Cook Islands
During the months of June, July, August, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Rainy season in Rarotonga occurs in the months of January, February, March, April and December.
March has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is August with an average maximum temperature of 25°C.
January tops the wettest month list with 225 mm of rainfall.
June is the driest month with 75 mm of precipitation.
August is the sunniest month with an average of 191 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
