Climate Insights for Cluj-Napoca

The climate in Cluj-Napoca is temperate. The average annual temperature is 10°C and approximately 676mm of precipitation falls per year. Cluj-Napoca receives a notable amount of rainfall throughout the year, including during its driest month. Cluj-Napoca is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, February, December, when temperatures can drop to -5°C. Light snow can occur between January and December.

Temperatures in Cluj-Napoca vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 21°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -1°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 6°C shift in average temperatures.

Cluj-Napoca is a relatively dry area, receiving approximately 676mm of precipitation annually, which averages out to around 56mm per month. The wettest month is June, averaging 94mm of rainfall. May and July also tend to see above-average precipitation. The driest month is January, with just 35mm. That's 59mm less than June, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Light snowfall can occur between January and December, totalling around 46cm annually. January is the snowiest month with approximately 13cm.

Cluj-Napoca is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently spring in Cluj-Napoca, which began on March 20, 2026. Cluj-Napoca 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 28°C, while the coldest stretch bottoms out in January near -5°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Cluj-Napoca is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 73mm per month. By contrast, January can be quite cold with temperatures dropping to -5°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 Cluj-Napoca 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.