Climate Insights for Mitiaro Island Airport

The climate in Mitiaro Island Airport is hot. The average annual temperature is 25°C and approximately 1827mm of precipitation falls per year. Mitiaro Island Airport receives a notable amount of rainfall throughout the year, including during its driest month. Mitiaro Island Airport 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 23°C.

Mitiaro Island Airport has relatively stable temperatures year-round, staying within a 5°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 23°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.

Mitiaro Island Airport is a fairly wet location, receiving approximately 1827mm of precipitation annually, which averages out to around 152mm per month. The wettest month is December, averaging 272mm of rainfall. January and March also tend to see above-average precipitation. The driest month is September, with just 60mm. That's 212mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Mitiaro Island Airport is moderately windy, with an average annual wind speed of 29km/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 31km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in March, with average winds dropping to 23km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 8km/h 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 30km/h in winter, 30km/h in spring, 27km/h in summer, 27km/h in autumn.

It is currently autumn in Mitiaro Island Airport, which began on March 20, 2026. Mitiaro Island Airport is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in March at around 28°C, while the coldest stretch bottoms out in August near 23°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Mitiaro Island Airport is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 74mm 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 table below shows monthly climate averages for Mitiaro Island Airport 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.