Climate Insights for Dunedin

The climate in Dunedin is cool. The average annual temperature is 9°C and approximately 972mm of precipitation falls per year. Dunedin receives a notable amount of rainfall throughout the year, including during its driest month. Dunedin 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 July, June, August, when temperatures can drop to 1°C. Light snow can occur between May and October.

Dunedin sees moderate temperature variation throughout the year, ranging from 1°C to 20°C. January is the warmest month, though highs remain moderate at 20°C with a mean of 14°C. July is the coolest month, with minimum temperatures around 1°C and an average of 4°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 3°C shift in average temperatures.

Dunedin is a moderately rainy area, receiving approximately 972mm of precipitation annually, which averages out to around 81mm per month. The wettest month is January, averaging 115mm of rainfall. November and December also tend to see above-average precipitation. The driest month is August, with just 46mm. That's 69mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Light snowfall can occur between May and October, totalling around 13cm annually. August is the snowiest month with approximately 4cm.

Dunedin is mildly breezy, with an average annual wind speed of 20km/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 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 18km/h in winter, 22km/h in spring, 21km/h in summer, 19km/h in autumn.

It is currently autumn in Dunedin, which began on March 20, 2026. Dunedin 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 20°C, while the coldest stretch bottoms out in July near 1°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Dunedin 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. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. 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.