Sea Temperature in Formia in September

© Mauro Riccio

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

Formia Climate and Swimming Opportunities in September

Formia lies within the Lazio in Italy. The average daytime temperature in Formia in September is 26°C (79°F), while the nighttime average is 15°C (60°F). There are typically eight rainy days during the month, with a total precipitation of 86 mm (3.4 inches). The daylight duration in September in Formia is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 10 km/h (6 mph), and the humidity level is around 72%.

The water temperature in Formia in September ranges from 23°C to 26°C (73°F to 79°F). At the beginning of the month, the average temperature is around 26°C (79°F), shifting to 25°C (77°F) by mid-September and reaching 24°C (75°F) in the last ten days. Overall, the average sea temperature in Formia for September is 25°C (77°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 Formia