Weather for New York in September is typically good with an average maximum temperature of +75°F during the day, and approximately 10 sunny days monthly. Typically, there are about 12 rainy days with the total average precipitation that falls in September around 106 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Good to know:
September is usually the wettest month of the year in New York;
Average weather
☀️
+75°F
Avg. max. temperature
+43°F
Min.
+97°F
Max.
106 mm
Total precipitation
69%
Avg. humidity
4 m/s
Avg. wind
10 ☀️
Sunny Days
7 ⛅️
Cloudy
12 🌦
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
The expected average maximum temperature in September is +77°F with a maximum of +93°F and a minimum of +54°F.
The average maximum temperature goes down 23% by the end of the month, compared with the beginning of the month, from +75°F to +66°F.
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 +82°F to +75°F. The minimum temperature also goes down from +70°F to +63°F.
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:
Water temperature in New York in September
Water in New York in September is Comfortable. It varies from +67°F to +73°F, with an average of +70°F.This is almost similar to the air temperature, which averages +75°F.
The water temperature in September is one of the warmest of the entire year:
The warmest water temperatures in New York are reached in August, when the average sea temperature rises to +74°F. The coldest water temperatures are in February, with an average of +39°F.
Can you swim in New York in September?
The water in New York in September is pretty comfortable (+70°F in average). Ideal for swimming, especially in outdoor pools and open water. Suitable for recreational and casual swimmers.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don’t forget a large beach towel or two for drying off.
Climate in New York in September
New York weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+82°F
+75°F
+64°F
Min. temperature
+50°F
+43°F
+32°F
Max. temperature
+102°F
+97°F
+93°F
Rainfall
113 mm
106 mm
96 mm
Wind
3 m/s
4 m/s
4 m/s
Avg. water temperature
+74°F
+70°F
+62°F
Humidity
68%
69%
68%
Air pressure
1015 HPa
1017 HPa
1017 HPa
Sunny days
8
10
9
Cloudy days
6
7
9
Rainy days
13
12
12
Snowy days
0
0
0
September weather is still as good as in August.It’s getting colder in September. From +82°F in the day, the average maximum temperature lowers to +75°F.As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 113 mm to 106 mm.Humidity rises from 68% to 69%.Winds are stronger in comparison to August, going up from 3 m/s to 4 m/s on average.The good news is there are likely to be more sunny days in September, from 8 to 10.
October brings much the same weather, it remains good.
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 10 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 5 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
Total precipitation in September is about 330 mm, with a 57% chance of rain on a typical day. The maximum amount of rainfall per day is around 106 mm, which is considered heavy rain.September is a pretty wet month with over 17 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
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 42% chance of precipitation and 113 mm of rainfall per day. February, on the other hand, is the driest month with a mere 24% chance of precipitation and 48 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
☀️
+76°F
2 September
☀️
+79°F
3 September
☀️
+90°F
4 September
☀️
+89°F
5 September
☀️
+92°F
6 September
☀️
+94°F
7 September
☀️
+93°F
8 September
🌧️
+89°F
9 September
🌫️
+86°F
10 September
🌧️
+78°F
11 September
🌫️
+82°F
12 September
☀️
+83°F
13 September
🌧️
+81°F
14 September
☀️
+80°F
15 September
☀️
+71°F
16 September
☀️
+77°F
17 September
☀️
+78°F
18 September
🌫️
+70°F
19 September
☀️
+74°F
20 September
☀️
+76°F
21 September
☀️
+74°F
22 September
☀️
+72°F
23 September
🌧️
+65°F
24 September
🌫️
+65°F
25 September
🌫️
+64°F
26 September
🌫️
+61°F
27 September
☁️
+65°F
28 September
☁️
+65°F
29 September
🌫️
+61°F
30 September
🌧️
+66°F
In September 2023 New York had 16 sunny days, 2 cloudy days, and 5 rainy days. The average maximum temperature was +77°F, with an absolute maximum of +93°F and a minimum of +61°F. The average humidity was 79%, with a maximum of 100% and a minimum of 46%. The average wind speed was 5 m/s, with a maximum of 14 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how New York climate has changed over the last 43 years.
The climate in New York in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1996 (+59°F) and the highest in 2016 (+65°F). The driest year was 1982 with only 711 mm of rainfall, and the wettest year was 2023 with 1785 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.
Can you swim in New York in September?
Yes, the water temperature in New York in September is considered moderate and enjoyable for most people, averaging around +70°F.
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.
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, 2023.
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.