Sea Temperature in Gdansk in September

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Complete information on the sea temperature range in the Baltic Sea in Gdansk in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Gdansk. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Gdansk Climate and Swimming Opportunities in September

Gdansk lies within the Pomeranian Voivodeship in Poland. The average daytime temperature in Gdansk in September is 18°C (64°F), while the nighttime average is 10°C (51°F). There are typically 11 rainy days during the month, with a total precipitation of 65 mm (2.5 inches). The daylight duration in September in Gdansk is 13 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 15 km/h (9 mph), and the humidity level is around 82%.

The water temperature in Gdansk in September ranges from 15°C to 19°C (59°F to 66°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 18°C (64°F) by mid-September and reaching 16°C (61°F) in the last ten days. Overall, the average sea temperature in Gdansk for September is 17°C (63°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in September in Gdansk