Weather in Świnoujście: What to Expect by Season

Świnoujście sits on the Baltic coast, where the sea shapes the rhythm of the seasons. Winters here are mild compared to inland Poland, with January and February bringing chilly but rarely freezing air. The coldest days hover around 2 °C, while nights can dip slightly below zero. Spring arrives gradually, with March still feeling crisp, but by April, the city awakens under longer daylight and temperatures climbing toward 8.6 °C.

Summer in Świnoujście is gentle, with July and August offering the warmest weather—averaging 18.6–18.8 °C—and the sea reaching its peak at 21.3 °C. The Baltic breeze keeps the heat from becoming oppressive, making these months ideal for beach walks and outdoor cafés. Autumn arrives softly, with September still pleasant at 15.5 °C, though by October, the air cools noticeably, and the days grow shorter.

The temperature in Świnoujście follows a steady curve, with the mildest winters in Poland’s coastal region. From December to February, daytime highs rarely exceed 4–6 °C, while nights can drop to -0.5 °C or lower. The transition into spring is slow, with March still feeling wintry, but by May, the city enjoys 13.5 °C on average, and the sea warms to 15.2 °C, inviting early swimmers.

Summer temperatures peak in July and August, with highs around 23–24 °C and lows near 13 °C, creating comfortable conditions for exploring the city or relaxing by the water. Evenings remain cool, so a light layer is often useful. By September, the warmth begins to fade, with averages dropping to 15.5 °C, and by November, Świnoujście settles into its autumn chill, with highs of just 8.1 °C.

Rainfall in Świnoujście is spread throughout the year, with no extreme wet or dry seasons. The driest months are March and April, when precipitation drops to around 23–29 mm, while July sees the highest rainfall at 67.9 mm. Summer showers are usually brief, often followed by sunshine, so they rarely disrupt plans.

Autumn brings slightly more rain, with October averaging 54.6 mm, but the city’s coastal location means storms are rare. Winter months like January and December see moderate precipitation at 41–45 mm, often as light rain or occasional sleet rather than heavy snow. The Baltic’s influence keeps humidity steady, though it’s rarely noticeable in the air.

For a winter trip to Świnoujście, pack layers to handle the chill and occasional wind off the sea. A warm coat, gloves, and a scarf will keep you comfortable during December to February, when temperatures hover around 2–3 °C. Waterproof shoes are useful, as rain or sleet can make paths slippery.

Summer visitors can opt for light clothing, but a jacket or sweater is wise for cooler evenings, especially in June or September. Swimwear is a must if you plan to dip into the Baltic, where the water reaches 21.3 °C in July. For spring or autumn, bring a mix of light and warmer layers, as April and October can shift between sunny and overcast skies.