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New York in September: Weather, Average temperature and Climate

Discover the weather for New York in September and if it’s a good time to travel (based on historical data).
Check flight prices to New York on Avionero:
September

Weather in New York in September 2024

Good Weather
Warm
☁️
Cloudy
Weather for New York in September is typically good with an average maximum temperature of +24°C during the day, and approximately 11 sunny days monthly. Typically, there are about 7 rainy days with the total average precipitation that falls in September around 101 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.
Good to know:
  • September is usually the wettest month of the year in New York;

Average weather

☀️
+24°C
Avg. max. temperature
+6°C
Min.
+36°C
Max.
101 mm
Total precipitation
68%
Avg. humidity
3 m/s
Avg. wind
11 ☀️
Sunny Days
12 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: New York has good weather in September.

Average temperature in New York in September

Here are the expected maximum, average and minimum temperatures in New York for September based on the historical data.
Last Year
Historical Data

Going from a maximum of +30°C during the day to a minimum of +10°C during the night, the temperature in September averages around +25°C.

The average maximum temperature goes down 65% by the end of the month, compared with the beginning of the month, from +30°C to +17°C.

Is New York warm or cold in September?

New York is typically warm in September.

Maximum temperatures go down compared to the previous month from +28°C to +24°C. The minimum temperature also goes down from +21°C to +17°C.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how September is compared to other months in New York:

Climate in New York in September

New York weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+28°C+24°C+18°C
Min. temperature
+10°C+6°C0°C
Max. temperature
+39°C+36°C+34°C
Rainfall
111 mm101 mm96 mm
Wind
3 m/s3 m/s4 m/s
Humidity
67%68%67%
Air pressure
1015 HPa1017 HPa1017 HPa
Sunny days
111110
Cloudy days
121214
Rainy days
877
Snowy days
000

September weather is still as good as in August. It’s getting colder in September. From +28°C in the day, the average maximum temperature lowers to +24°C. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 111 mm to 101 mm. Humidity rises from 67% to 68%. The average wind speed doesn’t change much during September, staying around 3 m/s. The amount of sunny days stay about the same, averaging 11 sunny days during the month.

October brings much the same weather, it remains good.

Wind

Wind speed in New York in September based on historical data.
Last Year
Historical Data

The average wind speed is 5 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in New York is gradually increasing during September, going from 6 m/s to 6 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in New York based on historical data.
Last Year
Historical Data
Typically, there is a 33% chance of rain on an average day in September, with total rainfall of approximately 139 mm. The maximum amount of rainfall per day is around 39 mm, which is moderate rain. September is a pretty wet month with over 10 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
September is one of the rainiest months in New York, here is a comparison with other months, total mm:
New York wettest month is August, where a typical day has a 26% chance of precipitation and 111 mm of rainfall per day. February, on the other hand, is the driest month with a mere 14% chance of precipitation and 49 mm of rainfall per day.

How was the weather last September in New York?

This is the weather in New York in September 2023:
1 September
☀️
+30°C
2 September
☀️
+26°C
3 September
☀️
+27°C
4 September
☀️
+30°C
5 September
☀️
+30°C
6 September
🌧️
+25°C
7 September
☁️
+22°C
8 September
☁️
+26°C
9 September
☀️
+26°C
10 September
☀️
+29°C
11 September
🌧️
+24°C
12 September
🌧️
+28°C
13 September
🌧️
+28°C
14 September
☀️
+27°C
15 September
☀️
+24°C
16 September
☀️
+25°C
17 September
☀️
+23°C
18 September
☀️
+29°C
19 September
☀️
+30°C
20 September
☀️
+26°C
21 September
☀️
+27°C
22 September
☀️
+25°C
23 September
☀️
+18°C
24 September
☀️
+21°C
25 September
☀️
+23°C
26 September
☀️
+24°C
27 September
☀️
+21°C
28 September
☀️
+21°C
29 September
☀️
+19°C
30 September
☀️
+17°C
In September 2023 New York had 24 sunny days, 2 cloudy days, and 4 rainy days. The average maximum temperature was +25°C, with an absolute maximum of +30°C and a minimum of +17°C. The average humidity was 65%, with a maximum of 96% and a minimum of 29%. The average wind speed was 5 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change over Years

This is how New York climate have been changing during last 43 years period.

The climate in New York in September has not changed much over the last 43 years.

The average temperature was the lowest in 1982 (+24°C) and the highest in 2005 (+28°C). The driest year was 2005 with only 30 mm of rainfall, and the wettest year was 2004 with 783 mm.

FAQ

Frequently asked questions about the weather in New York in September:

Is September a good time to visit New York?

September is a really good time to go to New York. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit New York.

Can you sunbathe in New York in September?

September is warm in New York. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is New York rainy in September?

New York is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in New York in September?

The amount of sunny days in New York during September varies; prepare for a mix of clouds and sun.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in New York

Source of the data

For this page, we’ve looked at the typical weather in New York, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.