Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Olean Weather in September
September is one of the excellent months to visit Olean, with daytime temperatures of 22°C (72°F) and lows of 9°C (48°F) at night. Do note that quite a bit of rainfall is typical, averaging around 93 mm (3.7 in).
Rainfall in Olean in September
On average, there are about 13 days with rain during this month, averaging 93 mm (3.7 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Olean in September
Olean has excellent weather in September, with days reaching 22°C (72°F) and nights cooling to 9°C (48°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Olean.
Olean Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
22°C (72°F)
Chance of Rain
43%
Precipitation
93 mm (3.7 in)
Rainy days
13 days
Olean Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Olean - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Olean in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Olean in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping4/10 -
Outdoor sports9/10
Olean 3-Day Forecast
More climate data for Olean
See the full Olean climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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