The highest day temperature in June 2026 was 89°F. The lowest night temperature was 50°F. The average values for day and night temperatures during June were 68.8°F и 57.7°F respectivly.

The average sea surface temperature in June 2026 for Gdynia was 62.7°F. The maximum and minimum values were 54.6°F and 74.2°F respectively.

Most of the days in June are sunny but you can also expect cloudy and gloomy days.

Precipitation total in June for Gdynia is 1.8 in. It makes june one of the most rainy months of the year.

The average wind speed in June is 9.1 mph. It makes June the most windless month of the year for Gdynia.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Gdynia in June is 10.9 hours.