Climate Insights for Rønne

The climate in Rønne is cool. The average annual temperature is 10°C and approximately 705mm of precipitation falls per year. October is the wettest month, receiving around 96mm of rainfall. Rønne is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are February, January, March, when temperatures can drop to 2°C. Light snow can occur between January and December.

Rønne sees moderate temperature variation throughout the year, ranging from 2°C to 20°C. August is the warmest month, though highs remain moderate at 20°C with a mean of 19°C. February is the coolest month, with minimum temperatures around 2°C and an average of 3°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.

Rønne is a relatively dry area, receiving approximately 705mm of precipitation annually, which averages out to around 59mm per month. The wettest month is October, averaging 96mm of rainfall. November and December also tend to see above-average precipitation. The driest month is May, with just 23mm. That's 73mm less than October, 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 January and December, totalling around 32cm annually. February is the snowiest month with approximately 11cm.

Rønne is relatively calm, with an average annual wind speed of 8km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 9km/h in winter, 7km/h in spring, 6km/h in summer, 8km/h in autumn.

It is currently summer in Rønne, which began on June 21, 2026. Rønne is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 20°C, while the coldest stretch bottoms out in February near 2°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Rønne is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 59mm per month. By contrast, February can be quite cold with temperatures dropping to 2°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 Rønne 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.