Climate Insights for Arutanga
Aitutaki, Cook Islands
Climate Overview
The climate in Arutanga is hot. The average annual temperature is 26°C and approximately 1,871 mm of precipitation falls per year. Arutanga receives a notable amount of rainfall throughout the year, including during its driest month. Arutanga is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: March, February, April. The coldest months are August, September, July, when temperatures can drop to 24°C.The climate in Arutanga is hot. The average annual temperature is 78°F and approximately 73.6 in of precipitation falls per year. Arutanga receives a notable amount of rainfall throughout the year, including during its driest month. Arutanga is in the Southern Hemisphere. The seasons are reversed: summer runs from December to February, while winter falls between June and August. The summer months are: March, February, April. The coldest months are August, September, July, when temperatures can drop to 75°F.
Temperature
Arutanga has relatively stable temperatures year-round, staying within a 4°C range. The warmest month is March, when average highs reach 28°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 24°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.Arutanga has relatively stable temperatures year-round, staying within a 7°F range. The warmest month is March, when average highs reach 82°F and the mean temperature sits around 81°F. August is the coolest month, with minimum temperatures around 75°F and an average of 76°F. Daily temperature variation is modest, with an average difference of 2°F between highs and lows.
Precipitation
Arutanga is a fairly wet location, receiving approximately 1,871 mm of precipitation annually, which averages out to around 156 mm per month. The wettest month is February, averaging 257 mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 64 mm. That's 193 mm less than February, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.Arutanga is a fairly wet location, receiving approximately 73.6 in of precipitation annually, which averages out to around 6.1 in per month. The wettest month is February, averaging 10.1 in of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 2.5 in. That's 7.6 in less than February, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.
Wind
Arutanga is moderately windy, with an average annual wind speed of 23km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 25km/h in winter, 25km/h in spring, 21km/h in summer, 21km/h in autumn.Arutanga is very windy, with an average annual wind speed of 14mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is October, averaging 16mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in March, with average winds dropping to 11mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5mph gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 16mph in winter, 16mph in spring, 13mph in summer, 13mph in autumn.
Best Time to Visit
The best time to visit Arutanga is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 72 mm per month. By contrast, March can be uncomfortably hot with temperatures reaching 28°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Arutanga is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 76°F with modest rainfall averaging 2.8 in per month. By contrast, March can be uncomfortably hot with temperatures reaching 82°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Arutanga based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Arutanga based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.