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Weather · September

Rochester weather in September

Average highs of 74°F, lows of 54°F and 3.2 in of rain, from 30 years of weather records.

September is Rochester’s 4th warmest month, with average highs of 74°F and lows of 54°F. That is 7° cooler than August, and 15° above the yearly average high.

Average high
74°F
Average low
54°F
Precipitation
3.2 in
Wet days
11
Sunrise · sunset
6:49 AM · 7:22 PM

September across the year

  1. 33°19°Jan
  2. 35°20°Feb
  3. 44°27°Mar
  4. 57°37°Apr
  5. 69°48°May
  6. 78°57°Jun
  7. 83°62°Jul
  8. 81°61°Aug
  9. 74°54°Sep
  10. 61°43°Oct
  11. 49°34°Nov
  12. 39°25°Dec

High and low Rain

What to wear in September

  • Mild days: dress in layers, with a light jacket or sweater for mornings and evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 11 days this month.

September is good for

What’s on in Rochester in September

See all upcoming events and school days off.

Around Rochester

Crosman Terrace Historic District in Rochester, New York as it appeared in 2025
CrosmanTerraceHistoricDistrict2025JDanielPenfield · CC BY-SA 4.0
Hiram Sibley Building, Rochester, New York
Hiram Sibley Building, Rochester, New YorkKenneth C. Zirkel · CC BY-SA 4.0
Crosman Terrace Historic District in Rochester, New York as it appeared in 2025
CrosmanTerraceHistoricDistrict2025ADanielPenfield · CC BY-SA 4.0

See Rochester

A look around town before you go.

Rochester 4k - Driving Downtown - 4k New York, USA video thumbnail

A DRIVE AROUND TOWN

Rochester 4k - Driving Downtown - 4k New York, USA

A recorded local driving tour shared by Peaceful Drives. This is not a live camera or a current traffic report.

Watch on YouTube ↗
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THINGS TO DO · YOUTUBE SHORT

There’s so much to do in Rochester, NY!

An activity Short shared by Jen Ruiz.

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September compared with the months around it

MonthHighLowRain
August81°F61°F3.3 in
September74°F54°F3.2 in
October61°F43°F3.2 in

Planning a trip? See the best time to visit Rochester and today’s forecast.

Questions

How hot does it get in Rochester in September?

Average highs are 74°F and average lows 54°F, for a daily mean of 64°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Rochester in September?

September averages 3.2 in of precipitation over about 11 days with at least 0.01 in. It is the 4th wettest month of the year.

What time is sunset in Rochester in September?

Around mid-September the sun rises about 6:49 AM and sets about 7:22 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Rochester?

Yes. September is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Rochester Gtr Intl Ap station (4.4 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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