The highest day temperature in May 2023 was 71°F. The lowest night temperature was 38°F. The average values for day and night temperatures during May were 58.3°F и 47.3°F respectivly.

The average sea surface temperature in May 2023 for Gdynia was 49.8°F. The maximum and minimum values were 44.2°F and 57.8°F respectively.

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

Precipitation total in May for Gdynia is 1.7 in. It makes may one of the most rainy months of the year.

The average wind speed in May is 9.6 mph. It makes May one of the most windless months 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 May is 9.8 hours.