Climate Insights for Rosebank

The climate in Rosebank is temperate. The average annual temperature is 17°C and approximately 524mm of precipitation falls per year. June is the wettest month, receiving around 109mm of rainfall. Rosebank 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, December. The coldest months are August, July, June, when temperatures can drop to 11°C.

Rosebank 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 20°C. August 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 5°C between highs and lows.

Rosebank is a relatively dry area, receiving approximately 524mm of precipitation annually, which averages out to around 44mm per month. The wettest month is June, averaging 109mm of rainfall. July and August also tend to see above-average precipitation. The driest month is February, with just 10mm. That's 99mm less than June, 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.

Rosebank 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 January, averaging 30km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in May, with average winds dropping to 22km/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 pick up during the summer months. The seasonal averages are 25km/h in winter, 27km/h in spring, 29km/h in summer, 24km/h in autumn.

It is currently winter in Rosebank, which began on June 21, 2026. Rosebank 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 August near 11°C. Autumn is next, beginning on March 20, 2026 — 3 days from now.

The best time to visit Rosebank is during January, February, March, April, May, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 24mm per month. By contrast, August can be quite cold with temperatures dropping to 11°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Rosebank 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.