Climate Insights for Dalmeny

The climate in Dalmeny is temperate. The average annual temperature is 17°C and approximately 1059mm of precipitation falls per year. Dalmeny receives a notable amount of rainfall throughout the year, including during its driest month. Dalmeny 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: January, February, March. The coldest months are July, August, June, when temperatures can drop to 11°C.

Dalmeny sees moderate temperature variation throughout the year, ranging from 11°C to 23°C. January is the warmest month, though highs remain moderate at 23°C with a mean of 21°C. July is the coolest month, with minimum temperatures around 11°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between April and May, with a 2°C shift in average temperatures.

Dalmeny is a moderately rainy area, receiving approximately 1059mm of precipitation annually, which averages out to around 88mm per month. The wettest month is March, averaging 125mm of rainfall. January and November also tend to see above-average precipitation. The driest month is September, with just 53mm. That's 73mm less than March, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Dalmeny is moderately windy, with an average annual wind speed of 26km/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 28km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 24km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 25km/h in winter, 27km/h in spring, 27km/h in summer, 25km/h in autumn.

It is currently autumn in Dalmeny, which began on March 20, 2026. Dalmeny 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 January at around 23°C, while the coldest stretch bottoms out in July near 11°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Dalmeny is during February, April, May, October and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 88mm per month. By contrast, January can be uncomfortably hot with highs reaching 23°C, while July is the coldest period with lows dropping to 11°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 Dalmeny 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.