Sea Temperature in Naantali in August

© Juris Burtnieks

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

Naantali Climate and Swimming Opportunities in August

Naantali lies within the Western Finland Province in Finland. The average daytime temperature in Naantali in August is 20°C (67°F), while the nighttime average is 12°C (53°F). There are typically 12 rainy days during the month, with a total precipitation of 74 mm (2.9 inches). The daylight duration in August in Naantali is 15 hours, with an average of 7 hours of sunshine per day. The average wind speed in August is 14 km/h (9 mph), and the humidity level is around 77%.

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

Frequently Asked Questions About Water Temperatures in August in Naantali