Measurements:
°C
°F
Boise
50°F
SE 12 mph
Feels like: 46°F
Precip: 0%
World Resorts USA Boise Weather September Weather in Boise

Boise Weather: September

Average Day Temperature: 80.6°F
Average Night Temperature: 61.4°F
Number of Sunny Days: 23 days
Sunshine Hours: 11.8 - 13.2 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.4 in

Air Temperature in September, °F

Select Year: 2023 2022 2021

The highest day temperature in September 2023 was 91°F. The lowest night temperature was 41°F. The average values for day and night temperatures during September were 75.4°F и 58.6°F respectivly.

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 Boise is 0.4 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 5.8 mph. This value is relatively stable throughout the year.

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 Boise in September is 10.4 hours.

Best Time to Visit Boise
The most sunny months:
July 28 days
August 25 days
September 23 days
The most warm months:
July 93.7 °F
August 91.0 °F
September 80.6 °F
The most cold months:
January 32.2 °F
December 33.5 °F
February 36.7 °F
The most rainy months:
November 2 days
May 2 days
October 2 days
The most windy months:
April 7 mph
May 7 mph
March 6 mph

Boise on the Weather Map

USA Resorts:
NAME
Boston +64
Chicago +66
Hawaii +78
Honolulu +78
Houston +88
Las Vegas +74
Los Angeles +72
Miami +80
New York +56
Orlando +88
San Diego +66
San Francisco +58
Sarasota +88
Tampa +90
Washington +54
24 Hours Weather Forecast
Boise
Local time: 12:18
27 apr, saturday
1500 56°F
SE
12 mph
1800 56°F
E
10 mph
2100 54°F
NE
2 mph
28 apr, sunday
0000 50°F
SE
7 mph
0300 44°F
SE
7 mph
0600 42°F
SE
5 mph
0900 44°F
E
7 mph
1200 50°F
E
9 mph