The climate of Constanta is slightly continental, with cold winters and hot summers.
The city is located in south-eastern Romania, on the Black Sea coast.
In the coldest winters, the temperature dropped to -17 °C (1.5 °F) in January 1963, to -18 °C (0 °F) in January 2010, and to -15 °C (5 °F) in February 2012. In the hottest summers, the temperature reached 38.5 °C (101.5 °F) in July 2007, and 37.5 °C (99.5 °F) in August 2006.
The average temperature of the coldest month (January) is of 1.6 °C (35 °F), that of the warmest month (July) is of 23.2 °C (74 °F). Here are the average temperatures.
Constanta - Average temperatures
Min (°C)-1-13712171919151050
Max (°C)46914202527272317116
Min (°F)303037455463666659504132
Max (°F)394348576877818173635243

Precipitation amounts to 385 millimeters (15.2 inches) per year: it is therefore quite scarce. It ranges from 20 mm (0.8 in) in the driest month (March) to 40 mm (1.6 in) in the wettest ones (June, October, November). Here is the average precipitation.
Constanta - Average precipitation

On average, there are around 2,300 sunshine hours per year. Here are the average sunshine hours per day.
Constanta - Sunshine

The sea temperature ranges between 6 °C (43 °F) and 24 °C (75 °F); it becomes warm enough for swimming in July and August. Here are the average sea temperatures.
Constanta - Sea temperature
Temp (°C)76710152023242117139
Temp (°F)454345505968737570635548


Best Time

The best time to go to Constanta for a beach holiday, is the summer, especially in July and August, when the temperatures are higher. In June, it's often a bit cooler, so it's better to bring a sweatshirt for the evening. Usually, the weather is still good in the first half of September, although it starts to be a bit cool at night, with minimum temperatures about 15 °C (59 °F).