The highest day temperature in September 2026 was 76°F. The lowest night temperature was 47°F. The average values for day and night temperatures during September were 65.1°F и 53.7°F respectivly.

The average sea surface temperature in September 2026 for Newport was 59.5°F. The maximum and minimum values were 55.6°F and 64.4°F respectively.

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in September for Newport is 1.0 in.

The average wind speed in September is 6.6 mph. It makes September one of the most windless months of the year for Newport.

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 Newport in September is 7.0 hours.