The weather in September in New York

It's warm in September in New York with an average temperature of 27°C. Temperatures this month range from a low of 21°C to a high of 31°C. At night, you can expect temperatures between 16°C and 22°C.

Looking for great weather? September is a good time to be in New York. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for New York, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 36°C in 2015, New York reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 16°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 27°C.

Rainfall amount

In September, there is an average of 57 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southeast.

Daily weather in September for New York

Click on any day in September to get detailed info about the usual weather on that day in New York. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  New York New York
Average temperature 27°C 27°C
Max. temperature 31°C 31°C
Min. temperature 16°C -5°C
Total precipitation 57 mm 57 mm
Rainy days 9 days 9 days

Start of September

The month of September starts in New York with hot temps, averaging around 29°C during the day and nights around 22°C.

Mid September

By mid-September, daytime temps drop to around 27°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of September

By the end of September, the average daytime temperature in New York is around 25°C, while nighttime temps are about 18°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of New York for all months and discover the best travel time

The climate in New York is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in New York to get the full picture of the climate.

Temperature charts

These charts show the average temperatures in September in New York, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in New York

Temperature in September in New York over the years

Precipitation charts

These charts show the average amount of precipitation in September in New York, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in New York

Total precipitation in September in New York over the years

Daily UV index in September in New York

This chart shows the average daily UV index in September in New York, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in New York

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Average weather in New York by month

Click on a month below to see detailed weather info for New York. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.