Early autumn · Weather & things to do
Keuka Lake in September
Keuka Lake cools off: highs slip to 75°F (24°C), from 82°F in August, with lows of 54°F (12°C) and about 3.8 in (97 mm) of rain.
At 85/100 for comfort (the top score of the year), it's one of the best months to visit.

- Avg high
- 75°F (24°C)
- Avg low
- 54°F (12°C)
- Rain
- 3.8 in (97 mm)
- Humidity
- 73%
- Cloud cover
- 55%
- Daylight
- ~12 h 16 min
- Comfort score
- 85/100 · Great
What September feels like
Highs settle around 75°F (24°C), warm enough for short sleeves most of the day.
Lows average 54°F (12°C).
Some rain is likely, about 3.8 in (97 mm) in the month, so pack for a shower or two.
Plan around September
September is one of Keuka Lake's best months on the climate data.
- Last warm month for a while: October highs fall to 60°F.
- Last of the best-scoring months: by October, the score drops to 73/100.
- Comfort improves from 80/100 in August to 85/100.
- September sits inside the May – Oct window our Finger Lakes Wine Trail route recommends.
What to pack for September
- Light, breathable clothes75°F afternoons
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Keuka Lake in September
With conditions on your side, the picks below favor time outside.
Crooked Lake Ice Cream Co.
Old-fashioned soda fountain and diner on the Hammondsport village square.
Why now September scores 85/100 for comfort, good conditions for being outside.
Village Tavern Restaurant & Inn
Hammondsport square restaurant with a long list of Finger Lakes wines by the glass.
Why now Highs near 75°F and 3.8 in of monthly rain make this an easy outdoor pick.
Dr. Konstantin Frank Winery
Founding vinifera winery of the Finger Lakes, with Riesling and Rkatsiteli above the lake.
Why now One to do outside while the weather is on your side.
Glenn H. Curtiss Museum
Aviation and motorcycle museum for the Hammondsport pioneer who rivaled the Wright brothers.
Why now Our curated notes list it for "rainy day", which suits a wetter month.
Keuka Outlet Trail
7-mile rail-trail from Penn Yan to Seneca Lake past old mill ruins and waterfalls.
Nearby in September
- Seneca Lake in September~21 mi · highs 75°F, 3.6 in rain · similar daytime temperatures, about as wet
- Ithaca in September~34 mi · highs 76°F, 4.0 in rain · similar daytime temperatures, about as wet
- Prince Edward County in September~97 mi · highs 71°F, 2.6 in rain · 2°C (4°F) cooler by day, drier
- Niagara Falls & Niagara-on-the-Lake in September~107 mi · highs 73°F, 3.2 in rain · 1°C (2°F) cooler by day, drier
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.
Keuka Lake in September: quick answers
Is September a good time to visit Keuka Lake?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 75°F (24°C) and 3.8 in (97 mm) of rain. September is inside the May – Oct window our Finger Lakes Wine Trail route recommends.
How hot is Keuka Lake in September?
Average highs are 75°F (24°C) and average lows 54°F (12°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Keuka Lake in September?
Some: about 3.8 in (97 mm) of rain falls across September on average, the 5th-wettest month of the year. The annual total is about 38.5 in (978 mm).
What should I pack for Keuka Lake in September?
Bring light, breathable clothes (75°F afternoons), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
More on Keuka Lake
Routes in season in September
- Finger Lakes Wine Trail May – Oct
Planning Keuka Lake in September?
Share this September plan with your group, poll everyone on dates and keep the packing list in one place.





