Odessa, Ukraine's principal port, sits on a low bluff above the northwestern coast of the Black Sea in the south of the country at approximately 46.48°N, 30.72°E. Its coastal position gives it a humid continental climate (Köppen Dfa) moderated by the sea — with hot summers and cold winters — milder and drier than inland Ukraine.

Summer, from June to August, is hot and comparatively dry, with July and August the warmest — average highs around 27–28°C — tempered by sea breezes, though heatwaves can exceed 35°C. Thunderstorms bring most of the modest summer rain, and the warm Black Sea draws crowds to the city's beaches.

Winter, from December to February, is cold but milder than inland Ukraine thanks to the sea, with January and February the coldest — average highs around 1°C and lows near -3°C. Snow falls and can lie briefly, thaws are frequent, and cold easterly winds off the steppe can bring sharp freezes; the shallow northwestern Black Sea occasionally ices near the shore.

Odessa is dry, receiving only around 450–480 mm of precipitation a year, with a summer maximum from thunderstorms; the surrounding steppe is drier still, and summer drought is a recurring risk for the region's farming. Live rainfall, humidity, and pressure readings for the city are shown in the panels above.

Odessa's Black Sea position gives it milder winters and hotter, drier summers than inland Ukraine, and a distinctly Mediterranean feel to its long, sunny warm season — though the shallow northwestern shelf of the sea can freeze near shore in the coldest winters, closing the harbour to shipping.

To follow any single measurement in Odessa more closely, use our live instruments: the online barometer for atmospheric pressure, the thermometer for temperature, the hygrometer for humidity, the anemometer for wind speed, the wind vane for wind direction, and the rain gauge for rainfall.