Climate Insights for Ono-I-Lau Airport

The climate in Ono-I-Lau Airport is warm and mild. The average annual temperature is 25°C and approximately 1881mm of precipitation falls per year. Ono-I-Lau Airport receives a notable amount of rainfall throughout the year, including during its driest month. Ono-I-Lau 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: February, March, January. The coldest months are August, September, July, when temperatures can drop to 22°C.

Ono-I-Lau Airport has relatively stable temperatures year-round, staying within a 5°C range. The warmest month is February, when average highs reach 27°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 22°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 1°C between highs and lows.

Ono-I-Lau Airport is a fairly wet location, receiving approximately 1881mm of precipitation annually, which averages out to around 157mm per month. The wettest month is March, averaging 327mm of rainfall. February and January also tend to see above-average precipitation. The driest month is July, with just 54mm. That's 272mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Ono-I-Lau Airport is moderately windy, with an average annual wind speed of 30km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 31km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in January, with average winds dropping to 28km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently autumn in Ono-I-Lau Airport, which began on March 20, 2026. Ono-I-Lau 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 February at around 27°C, while the coldest stretch bottoms out in August near 22°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Ono-I-Lau Airport is during May, June, July, September and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 84mm per month. By contrast, February can be uncomfortably hot with highs reaching 27°C, while August is the coldest period with lows dropping to 22°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 Ono-I-Lau 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.