Temperatures in September
It's warm in September in New York City with an average temperature of 25°C. Temperatures this month range from a low of 20°C to a high of 29°C. At night, you can expect temperatures between 15°C and 21°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for New York City in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in New York City with hot temperatures, averaging around 28°C during the day and nights close to 21°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature drops to around 26°C, with nights close to 19°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in New York City will be around 24°C, with nights close to 17°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Water temperature
The water temperature at New York City is 19°C this month. Refreshing if you fancy a swim.
Precipitation in September
In September, there is an average of 111 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the South.
The average precipitation chance is 25% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for New York City. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
New York City in September |
London | ||
|---|---|---|---|
 Average Temperature |
25°C | 20°C | |
 High Temp |
29°C | 22°C | |
| Low Temp |
20°C | 17°C | |
 Total Precipitation |
111 mm | 44 mm | |
| Rainy Days |
7 days | 8 days | |
August
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit New York City?
After some sun? Then September isn’t the best time to be in New York City. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for New York City in September
With 36°C, New York City hit the highest temperature in the last 10 years in September 2015. The lowest daytime temperature in this month was 15°C in 2016. The extreme night temperatures ranged from a low of 9°C to a high of 27°C.
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Daily Temperature in September in New York City
This chart shows the average daily temperatures, both day and night, for each day in September in New York City, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Weather experiences in September in New York City
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There were sunny and warm days, but also rainy days. It is r... more
Daily Precipitation in September in New York City
The chart below shows the average daily precipitation in September for New York City, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 7 days of rain in New York City.
Daily UV Index in September in New York City
This chart shows the average daily UV index in September in New York City, 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.
Temperature in September in New York City Over the Years
This chart shows the average temperature in September in New York City, measured in degrees Celsius, over the past years.
Total Precipitation in September in New York City Over the Years
This chart shows the average precipitation in September in New York City, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for New York City
Click on a specific day in September for detailed info on the typical weather on that day in New York City. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in New York City
The weather in September in New York City is rated 4 out of 5 stars by 1 visitor. Have you been to New York City? Share your weather experience to help other visitors.
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There were sunny and warm days, but also rainy days. It is recommended to bring sunglasses and an umbrella.— This text is automatically translated to English
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Average Weather in New York City by Month
Click on a month below to see detailed weather info for New York City. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of New York City for all months at once
