World Resorts USA Twin Falls Weather

Twin Falls weather in September

Weather in Twin Falls: September

Average day temperature: 80.0°F
Average night temperature: 55.3°F
Number of sunny days: 25 days
Day length: 11.8 - 13.1 hours
Number of rainy days: 1 day
Precipitation totals: 0.3 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 96°F. At the same time the lowest night temperature was 43°F. Daily and nightly averages during September were 81.3°F and 53.2°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Twin Falls in September is 0.3 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 7.2 mph It makes September lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 10.5.

Best time for vacation in Twin Falls

Sunniest months:
July 27 days
September 25 days
August 24 days
Warmest months:
July 92.5 °F
August 88.5 °F
September 80.0 °F
Coldest months:
January 32.2 °F
February 37.0 °F
December 37.7 °F
Rainiest months:
March 2 days
May 1 day
February 1 day
Windiest months:
April 9.9 mph
May 9.4 mph
February 9.3 mph

Twin Falls on a weather map

Twin Falls
+30°F
NE 6 mph
Feels like: +23°F
Precip.: 0%
Places in USA:
Name
°F
+52°F
+75°F
+75°F
+54°F
+63°F
+70°F
+77°F
+68°F
+50°F
+64°F
+54°F
+72°F
+73°F
+73°F
+39°F
24 Hours Forecast
Twin Falls
Local time: 20:22
January 09, friday
2100
30°F
NE
6 mph
January 10, saturday
0000
30°F
NE
6 mph
0300
28°F
N
6 mph
0600
25°F
N
6 mph
0900
19°F
N
4 mph
1200
28°F
NW
2 mph
1500
36°F
SW
3 mph
1800
34°F
SW
6 mph
Units of measurement: °C / °F