Louisville weather in September
September in Louisville averages 82°F by day and 62°F at night, with 3.7 inches of precipitation. It is the 4th-warmest and 9th-wettest month of the year here.
- Average high
- 82°F-6° vs August
- Average low
- 62°F0 nights below freezing
- Precipitation
- 3.7 in5 days with 0.1 in. or more
- Snow
- 0.0 in6 days at 90°F+
Is September a good time to visit Louisville?
Yes. September is one of the most comfortable months in Louisville by our rule (highs of 62 to 86°F, lows of 42°F or more and under 4.5 inches of precipitation). The most comfortable months overall are June and September to October.
Get outside in Louisville in September
September is made for being outside. Try Kentucky Kingdom, The Louisville Palace, Iroquois Park, Louisville Water Tower. All things to do in Louisville.
On September 15 the sun rises at 7:24 am and sets at 7:50 pm, giving 12h 26m of daylight. Daylight all year.
What to pack for Louisville in September
- Summer clothes, with a light layer for air conditioning
- An umbrella or rain jacket
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
September nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Louisville | 82°F | 62°F | 3.7 in | |
| Lexington, KY | 66 mi | 80°F | 58°F | 3.4 in |
| Bloomington, IN | 81 mi | 79°F | 56°F | 3.8 in |
| Cincinnati, OH | 91 mi | 79°F | 57°F | 3.1 in |
| Bowling Green, KY | 93 mi | 83°F | 60°F | 3.6 in |
| Evansville, IN | 104 mi | 82°F | 59°F | 3.3 in |
| Indianapolis, IN | 113 mi | 78°F | 57°F | 3.1 in |
Frequently asked questions
What is the weather like in Louisville in September?
In September, Louisville averages a high of 82°F and a low of 62°F, with 3.7 inches of precipitation (NOAA 1991-2020 normals).
Is September a good time to visit Louisville?
Yes. September is one of Louisville's most comfortable months by our rule: highs between 62°F and 86°F, lows of 42°F or more and modest rain.
Does it snow in Louisville in September?
Rarely. The September snowfall normal is under half an inch.
Before and after: Louisville in August and Louisville in October. All twelve months: Louisville weather by month.
NOAA NCEI 1991-2020 climate normals, station Louisville Intl. Airport, KY, 3.4 miles from the city center.