Climate Insights for Dundonald

The climate in Dundonald is temperate. The average annual temperature is 17°C and approximately 1098mm of precipitation falls per year. January is the wettest month, receiving around 194mm of rainfall. Dundonald 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: December, February, March. The coldest months are July, June, August, when temperatures can drop to 7°C.

Dundonald sees moderate temperature variation throughout the year, ranging from 7°C to 25°C. The warmest month is December, when average highs reach 25°C and the mean temperature sits around 20°C. July is the coolest month, with minimum temperatures around 7°C and an average of 13°C. On average, daily temperatures fluctuate by about 11°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 3°C shift in average temperatures.

Dundonald is a moderately rainy area, receiving approximately 1098mm of precipitation annually, which averages out to around 92mm per month. The wettest month is January, averaging 194mm of rainfall. February and December also tend to see above-average precipitation. The driest month is June, with just 12mm. That's 182mm less than January, 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.

Dundonald is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently autumn in Dundonald, which began on March 20, 2026. Dundonald 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 December at around 25°C, while the coldest stretch bottoms out in July near 7°C. Winter is next, beginning on June 21, 2026 — 3 days from now.

The best time to visit Dundonald is during April, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 69mm per month. By contrast, December can be uncomfortably hot with highs reaching 25°C, while July is the coldest period with lows dropping to 7°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 Dundonald 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.