Sea Temperature in Nagasaki in September

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

Nagasaki Climate and Swimming Opportunities in September

Nagasaki lies within the Nagasaki Prefecture in Japan. The average daytime temperature in Nagasaki in September is 28°C (83°F), while the nighttime average is 21°C (69°F). There are typically 13 rainy days during the month, with a total precipitation of 182 mm (7.2 inches). The daylight duration in September in Nagasaki is 12 hours, with an average of 5 hours of sunshine per day. The average wind speed in September is 12 km/h (7 mph), and the humidity level is around 76%.

The water temperature in Nagasaki in September ranges from 25°C to 28°C (77°F to 82°F). At the beginning of the month, the average temperature is around 27°C (81°F), shifting to 27°C (81°F) by mid-September and reaching 26°C (79°F) in the last ten days. Overall, the average sea temperature in Nagasaki for September is 27°C (81°F). The water is almost like a bath, perfect for those who prefer very warm conditions. However, it may not be as refreshing on extremely hot days.

Frequently Asked Questions About Water Temperatures in September in Nagasaki