The highest day temperature in September 2026 was 101°F. The lowest night temperature was 62°F. The average values for day and night temperatures during September were 90.2°F и 70.2°F respectivly.

The average sea surface temperature in September 2026 for Rome was 83.3°F. The maximum and minimum values were 80.6°F and 87.2°F respectively.

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation total in September for Rome is 1.3 in.

The average wind speed in September is 6.3 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Rome in September is 10.0 hours.