Climate Insights for Constanţa

The climate in Constanţa is temperate. The average annual temperature is 14°C and approximately 475mm of precipitation falls per year. November is the wettest month, receiving around 62mm of rainfall. Constanţa 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 2°C. Light snow can occur between January and December.

Temperatures in Constanţa vary considerably across the year, with a 25°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 27°C and the mean temperature sits around 25°C. January is the coolest month, with minimum temperatures around 2°C and an average of 4°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between May and June, with a 6°C shift in average temperatures.

Constanţa is a relatively dry area, receiving approximately 475mm of precipitation annually, which averages out to around 40mm per month. The wettest month is November, averaging 62mm of rainfall. January and October also tend to see above-average precipitation. The driest month is August, with just 16mm. That's 46mm less than November, 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. January is the snowiest month with approximately 15cm.

Constanţa is mildly breezy, with an average annual wind speed of 18km/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 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 15km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/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 21km/h in winter, 17km/h in spring, 16km/h in summer, 19km/h in autumn.

It is currently summer in Constanţa, which began on June 21, 2026. Constanţa 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 27°C, while the coldest stretch bottoms out in January near 2°C. Autumn is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Constanţa is during May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 35mm per month. By contrast, January 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 Constanţa 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.