Sea Temperature in Graddo in September

© Anja Paulsen

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

Graddo Climate and Swimming Opportunities in September

Graddo lies within the Stockholm County in Sweden. The average daytime temperature in Graddo in September is 16°C (60°F), while the nighttime average is 9°C (48°F). There are typically 10 rainy days during the month, with a total precipitation of 51 mm (2.0 inches). The daylight duration in September in Graddo is 13 hours, with an average of 4 hours of sunshine per day. The average wind speed in September is 15 km/h (9 mph), and the humidity level is around 79%.

The water temperature in Graddo in September ranges from 12°C to 16°C (54°F to 61°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 14°C (57°F) by mid-September and reaching 13°C (55°F) in the last ten days. Overall, the average sea temperature in Graddo for September is 14°C (57°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 Graddo