Climate Insights for Dumbéa

The climate in Dumbéa is warm and mild. The average annual temperature is 22°C and approximately 1400mm of precipitation falls per year. Dumbéa receives a notable amount of rainfall throughout the year, including during its driest month. Dumbéa 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, January, March. The coldest months are August, July, September, when temperatures can drop to 17°C.

Dumbéa has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is February, when average highs reach 27°C and the mean temperature sits around 25°C. August is the coolest month, with minimum temperatures around 17°C and an average of 19°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows.

Dumbéa is a fairly wet location, receiving approximately 1400mm of precipitation annually, which averages out to around 117mm per month. The wettest month is February, averaging 241mm of rainfall. April and March also tend to see above-average precipitation. The driest month is September, with just 46mm. That's 195mm less than February, 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.

Dumbéa is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently spring in Dumbéa, which began on September 23, 2026. Dumbéa 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 17°C. Summer is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Dumbéa is during May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 69mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 27°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Dumbéa 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.