Rochester weather in September 2026

Q: How hot is it in Rochester in September?

Daytime temperatures usually reach 24°C in Rochester in September, falling to 16°C at night.

Q: How sunny is it in Rochester in September?

There are normally 7 hours of bright sunshine each day in Rochester in September - that's 59% of daylight hours.

Q: How warm is the sea around Rochester in September?

The average sea temperature around Rochester in September is 21°C.

Q: Does it rain in Rochester in September?

There are usually 8 days with some rain in Rochester in September and the average monthly rainfall is 92mm.

Q: What is the chance of a hurricane in Rochester in September?

On average less than 1 day in September in Rochester is likely to be affected by the passage of one or more tropical storms.

Expect daytime maximum temperatures of 22°C in Rochester, New York in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 11 days with some rainfall and typically 75 mm of rainfall in the month.

22
22°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
11
11°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
75
75 mm of monthly rainfall
6
6 (High) UV index
19
19°C sea temperature

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The September weather guide for New York (Rochester) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

More about New York

How hot is it in Rochester in September?

Daytime temperatures usually reach 24°C in Rochester in September, falling to 16°C at night.

How sunny is it in Rochester in September?

There are normally 7 hours of bright sunshine each day in Rochester in September - that's 59% of daylight hours.

How warm is the sea around Rochester in September?

The average sea temperature around Rochester in September is 21°C.

Does it rain in Rochester in September?

There are usually 8 days with some rain in Rochester in September and the average monthly rainfall is 92mm.

What is the chance of a hurricane in Rochester in September?

On average less than 1 day in September in Rochester is likely to be affected by the passage of one or more tropical storms.

Rochester September sunrise & sunset times

Browse the sunrise and sunset times for Rochester in September 2026. Select a month to view Rochester sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Tuesday, 1st September 2026	05:35	18:45
Tuesday, 15th September 2026	05:50	18:20
Wednesday, 30th September 2026	06:07	17:53

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