United StatesAverage weather for New York City 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.
Start of September
The month of September starts in New York City with hot temps, averaging around 28°C during the day and nights around 21°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid September
By mid-September, daytime temps drop to around 26°C, with nights around 19°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
Since it cools down at night, it’s a good idea to wear layers.
End of September
By the end of September, the average daytime temperature in New York City is around 24°C, while nighttime temps are about 17°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Water temperature
The water temperature at New York City is 19°C this month. Refreshing if you feel like a swim.
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.
New York City in September |
New York | ||
|---|---|---|---|
 Average temperature |
25°C | 27°C | |
 Max. temperature |
29°C | 31°C | |
| Min. temperature |
20°C | -5°C | |
 Total precipitation |
111 mm | 57 mm | |
| Rainy days |
7 days | 9 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?
Looking for sun? September isn’t a good month to be in New York City. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 36°C in 2015, New York City reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 15°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 27°C.
Check out the climate of New York City for all months and discover the best travel time
Daily Temperature in September in New York City
This chart shows the average daily high and low temperatures in September for New York City, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Weather experiences in September in New York City
Good
There were sunny and warm days, as well as rainy days. It is... 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 millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 7 days of precipitation 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 few 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 millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for New York City
Click on any day in September to get detailed info about the usual 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.
Write your own review
There were sunny and warm days, as well as rainy days. It is recommended to bring sunglasses and an umbrella.— This text is automatically translated to English
Have you been to New York City in September?
Share your weather experience in September in New York City.
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
