Measurements:
°C
°F
Newport
50°F
SW 2 mph
Feels like: 50°F
Precip: 15%
World Resorts USA Newport Weather September Weather in Newport

Newport Weather: September

Average Day Temperature: 65.0°F
Average Night Temperature: 55.0°F
Sea Water Temperature: 54.4°F
Number of Sunny Days: 13 days
Sunshine Hours: 11.7 - 13.2 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.5 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 74°F. The lowest night temperature was 46°F. The average values for day and night temperatures during September were 63.3°F и 56.5°F respectivly.

Newport Water Sea Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2025 for Newport was 55.4°F. The maximum and minimum values were 50.8°F and 58.6°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Newport is 0.5 in. It makes september one of the least rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 6.8 mph. It makes September one of the most windless months of the year for Newport.

Average Sunny Hours Per Day

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 7.3 hours.

Best Time to Visit Newport
The most sunny months:
September 13 days
October 13 days
July 13 days
The most warm months:
August 66.8 °F
July 65.4 °F
September 65.0 °F
Warmest sea temperature:
October 54.6 °F
August 54.3 °F
September 53.7 °F
The most cold months:
February 47.9 °F
December 48.6 °F
January 48.8 °F
The most rainy months:
January 9 days
December 6 days
November 6 days
The most windy months:
December 10 mph
January 10 mph
November 9 mph

Newport on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +72
Sarasota +86
Washington +66
24 Hours Weather Forecast
Newport
Local time: 06:41
15 sep, tuesday
0900 56°F
S
2 mph
1200 62°F
SE
7 mph
1500 64°F
SE
9 mph
1800 60°F
S
9 mph
2100 54°F
S
4 mph
16 sep, wednesday
0000 52°F
SW
2 mph
0300 52°F
SW
4 mph
0600 52°F
W
4 mph