United StatesAverage weather for Manhattan in September
It's warm in September in Manhattan with an average temperature of 25°C. Temperatures this month range from a low of 21°C to a high of 31°C. At night, you can expect temperatures between 14°C and 23°C.
Start of September
The month of September starts in Manhattan with hot temps, averaging around 28°C during the day and nights around 21°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
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 20°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 Manhattan is around 24°C, while nighttime temps are about 17°C. There’s a significant chance of many days with precipitation.
Water temperature
The water temperature at Manhattan is 22°C this month. Pleasant for a swim.
In September, there is an average of 202 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Manhattan in September |
New York | ||
|---|---|---|---|
 Average temperature |
25°C | 27°C | |
 Max. temperature |
31°C | 31°C | |
| Min. temperature |
21°C | -5°C | |
 Total precipitation |
202 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 Manhattan?
Looking for sun? September isn’t a good month to be in Manhattan. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 36°C in 2015, Manhattan 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 Manhattan for all months and discover the best travel time
Daily Temperature in September in Manhattan
This chart shows the average daily high and low temperatures in September for Manhattan, 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.
Daily Precipitation in September in Manhattan
The chart below shows the average daily precipitation in September for Manhattan, 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 Manhattan.
Daily UV index in September in Manhattan
This chart shows the average daily UV index in September in Manhattan, 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 Manhattan over the years
This chart shows the average temperature in September in Manhattan, measured in degrees Celsius, over the past few years.
Total precipitation in September in Manhattan over the years
This chart shows the average precipitation in September in Manhattan, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Manhattan
Click on any day in September to get detailed info about the usual weather on that day in Manhattan. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Manhattan
Have you been to Manhattan in September?
Share your weather experience in September in Manhattan.
Average weather in Manhattan by month
Click on a month below to see detailed weather info for Manhattan. 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 Manhattan for all months at once
