Early autumn · Weather & things to do
Downtown Cincinnati in September
Downtown Cincinnati cools off: highs slip to 82°F (28°C), from 88°F in August, with lows of 57°F (14°C) and about 3.2 in (82 mm) of rain.
September opens the best stretch on our comfort score, at 88/100 (the top score of the year).
- Avg high
- 82°F (28°C)
- Avg low
- 57°F (14°C)
- Rain
- 3.2 in (82 mm)
- Humidity
- 68%
- Cloud cover
- 45%
- Daylight
- ~12 h 14 min
- Comfort score
- 88/100 · Great
What September feels like
Days are warm, averaging 82°F (28°C), easy weather for being outside from morning to evening.
There's a big swing between day and night, about 14°C (24°F), so mornings and evenings feel much cooler than the afternoon.
Showers are part of the month, adding up to about 3.2 in (82 mm).
Plan around September
September is one of Downtown Cincinnati's best months on the climate data.
- Last warm month for a while: October highs fall to 68°F.
- Opens the best-scoring stretch on our comfort score: September & October.
- Comfort improves from 74/100 in August to 88/100.
- Our Cincinnati New Year's Eve route is planned for Dec 30 – Jan 1, a window set by the holiday season rather than the weather — September falls outside it.
What to pack for September
- Light, breathable clotheshighs average 82°F
- A warm layer for eveningslows near 57°F
- Packable rain jacket or umbrellaabout 3.2 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Downtown Cincinnati in September
With conditions on your side, the picks below favor time outside.
Mecklenburg Gardens
German restaurant and beer garden open since 1865 near the university, serving schnitzel, sausages and local beer.
Why now September scores 88/100 for comfort, good conditions for being outside.
Smale Riverfront Park
Riverfront park below downtown with lawns, steps down to the Ohio and a close view of the Roebling bridge.
Why now Highs near 82°F and 3.2 in of monthly rain make this an easy outdoor pick.
Elm Street Plaza
New plaza beside the convention center, home of the free 2025 party with an ice rink and two fireworks shows.
Why now One to do outside while the weather is on your side.
Camp Washington Chili
Diner open since 1940 serving Cincinnati chili over spaghetti with a pile of shredded cheddar.
Nearby in September
- Lexington in September~73 mi · highs 80°F, 3.5 in rain · similar daytime temperatures, about as wet
- Louisville in September~89 mi · highs 82°F, 3.7 in rain · similar daytime temperatures, about as wet
- Indianapolis in September~99 mi · highs 78°F, 3.2 in rain · 2°C (4°F) cooler by day, about as wet
- German Village in September~100 mi · highs 79°F, 3.0 in rain · 2°C (3°F) cooler by day, about as wet
These averages also cover Covington.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Downtown Cincinnati in September: quick answers
Is September a good time to visit Downtown Cincinnati?
Yes. On the climate data it's one of the best months, scoring 88/100. Expect highs of 82°F (28°C) and 3.2 in (82 mm) of rain.
How hot is Downtown Cincinnati in September?
Average highs are 82°F (28°C) and average lows 57°F (14°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Downtown Cincinnati in September?
Some: about 3.2 in (82 mm) of rain falls across September on average, the 5th-driest month of the year. The annual total is about 44.0 in (1117 mm).
What should I pack for Downtown Cincinnati in September?
Bring light, breathable clothes (highs average 82°F), a warm layer for evenings (lows near 57°F), packable rain jacket or umbrella (about 3.2 in of rain) and comfortable walking shoes (most picks involve some walking).
More on Downtown Cincinnati
Planning Downtown Cincinnati in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.