Measurements:
°C
°F
Washington
48°F
SE 4 mph
Feels like: 46°F
Precip: 64%
World Resorts USA Washington Weather September Weather in Washington

Washington Weather: September

Average Day Temperature: 82.3°F
Average Night Temperature: 67.5°F
Sea Water Temperature: 77.5°F
Number of Sunny Days: 14 days
Sunshine Hours: 11.8 - 13.0 hours
Number of Rainy Days: 4 days
Precipitation Totals: 2.5 in

Air Temperature in September, °F

Select Year: 2023 2022 2021

The highest day temperature in September 2023 was 106°F. The lowest night temperature was 55°F. The average values for day and night temperatures during September were 82.6°F и 68.1°F respectivly.

Washington Water Sea Temperature in September, °F

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Washington was 80.2°F. The maximum and minimum values were 71.6°F and 86.0°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 Washington is 2.5 in.

Wind Speed in September, mph

The average wind speed in September is 6.4 mph. It makes September one of the most windless months of the year for Washington.

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 Washington in September is 7.5 hours.

Best Time to Visit Washington
The most sunny months:
July 15 days
November 15 days
June 15 days
The most warm months:
July 93.3 °F
August 90.7 °F
June 86.2 °F
Warmest sea temperature:
July 84.2 °F
August 83.0 °F
June 77.9 °F
The most cold months:
January 38.9 °F
February 43.6 °F
December 45.9 °F
The most rainy months:
August 6 days
May 6 days
June 6 days
The most windy months:
April 9 mph
March 9 mph
February 8 mph

Washington on the Weather Map

USA Resorts:
NAME
Boston +46
Chicago +34
Hawaii +74
Honolulu +74
Houston +56
Las Vegas +64
Los Angeles +56
Miami +78
New York +46
Orlando +74
San Diego +56
San Francisco +54
Sarasota +74
Tampa +72
Washington +48
24 Hours Weather Forecast
Washington
Local time: 06:55
28 mar, thursday
0900 48°F
S
8 mph
1200 48°F
S
11 mph
1500 50°F
S
9 mph
1800 48°F
S
9 mph
2100 48°F
SE
9 mph
29 mar, friday
0000 44°F
SE
14 mph
0300 40°F
SE
11 mph
0600 38°F
SE
9 mph