Sea Temperature in Kasmu in September

© Tarmo Erik

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

Kasmu Climate and Swimming Opportunities in September

Kasmu lies within the Lääne County in Estonia. The average daytime temperature in Kasmu in September is 16°C (60°F), while the nighttime average is 9°C (48°F). There are typically 11 rainy days during the month, with a total precipitation of 64 mm (2.5 inches). The daylight duration in September in Kasmu is 13 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 14 km/h (9 mph), and the humidity level is around 83%.

The water temperature in Kasmu in September ranges from 12°C to 17°C (54°F to 63°F). At the beginning of the month, the average temperature is around 17°C (63°F), shifting to 15°C (59°F) by mid-September and reaching 14°C (57°F) in the last ten days. Overall, the average sea temperature in Kasmu for September is 15°C (59°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 Kasmu