Sea Temperature in Sifnos in September

© Peter Laeuger

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

Sifnos Climate and Swimming Opportunities in September

Sifnos lies within the South Aegean in Greece. The average daytime temperature in Sifnos in September is 27°C (80°F), while the nighttime average is 21°C (69°F). There are typically two rainy days during the month, with a total precipitation of 7 mm (0.3 inches). The daylight duration in September in Sifnos is 12 hours, with an average of 10 hours of sunshine per day. The average wind speed in September is 17 km/h (11 mph), and the humidity level is around 66%.

The water temperature in Sifnos in September ranges from 22°C to 25°C (72°F to 77°F). At the beginning of the month, the average temperature is around 25°C (77°F), shifting to 24°C (75°F) by mid-September and reaching 23°C (73°F) in the last ten days. Overall, the average sea temperature in Sifnos for September is 24°C (75°F). Perfect swimming weather — warm water and hot air make for an enjoyable and relaxing experience.

Frequently Asked Questions About Water Temperatures in September in Sifnos