Sea Temperature in Tönning in September

© Steffi Pätsch

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

Tönning Climate and Swimming Opportunities in September

Tönning lies within the Schleswig-Holstein in Germany. The average daytime temperature in Tönning in September is 18°C (64°F), while the nighttime average is 10°C (51°F). There are typically 12 rainy days during the month, with a total precipitation of 83 mm (3.3 inches). The daylight duration in September in Tönning is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 21 km/h (13 mph), and the humidity level is around 84%.

The water temperature in Tönning in September ranges from 16°C to 18°C (61°F to 64°F). At the beginning of the month, the average temperature is around 18°C (64°F), shifting to 17°C (63°F) by mid-September and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in Tönning 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 Tönning