Jastarnia Weather & Climate: Best Time to Visit

The climate in Jastarnia is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a pleasant 22°C (72°F) in August, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.

At night, you can expect temperatures ranging from 17°C (63°F) in August to around -1°C (30°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Jastarnia receives mid-range precipitation levels, with 793 mm (31 in) annually. While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 85 mm (3.3 in) of precipitation, spread over 16 rainy days.

In contrast, the driest month April experiences a drier climate, with about 42 mm (1.7 in) of rainfall spread across 12 rainy days. For more details, please visit our Jastarnia Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

The relative humidity is high throughout the year in Jastarnia.

The city experiences its highest humidity in December, reaching 83%. In April, the humidity drops to its lowest level at 76%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year