Measurements:
°C
°F
Ithaca
8°F
NW 3 mph
Feels like: 0°F
Precip: 0%
World Resorts USA Ithaca Weather September Weather in Ithaca

Ithaca Weather: September

Average Day Temperature: 70.8°F
Average Night Temperature: 55.6°F
Number of Sunny Days: 11 days
Sunshine Hours: 11.8 - 13.1 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.8 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 81°F. The lowest night temperature was 38°F. The average values for day and night temperatures during September were 73.1°F и 53.7°F respectivly.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in September, in

Precipitation total in September for Ithaca is 0.8 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 6.1 mph. It makes September one of the most windless months of the year for Ithaca.

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 Ithaca in September is 6.9 hours.

Best Time to Visit Ithaca
The most sunny months:
September 11 days
October 10 days
August 8 days
The most warm months:
July 80.8 °F
August 77.6 °F
June 74.8 °F
The most cold months:
January 26.0 °F
February 28.3 °F
December 33.4 °F
The most rainy months:
July 3 days
April 3 days
August 3 days
The most windy months:
March 9 mph
November 9 mph
April 9 mph

Ithaca on the Weather Map

USA Resorts:
NAME
Chicago -2
Hawaii +78
Honolulu +78
Houston +44
Las Vegas +40
Los Angeles +52
Maui +72
Miami +72
Miami Beach +80
New York +18
San Diego +54
San Francisco +46
Sarasota +62
Tampa +62
Washington +28
24 Hours Weather Forecast
Ithaca
Local time: 03:41
05 dec, friday
0600 4°F
NW
6 mph
0900 8°F
NW
6 mph
1200 18°F
N
12 mph
1500 22°F
N
10 mph
1800 20°F
N
6 mph
2100 20°F
NW
6 mph
06 dec, saturday
0000 18°F
NW
6 mph
0300 20°F
NW
6 mph