New York Weather in September 

By: Loan Budy

Early September enjoys daytime high temperatures in the upper 70's to near 80 F (about 26 C) while near the end of the month the daytime high temperatures are more likely to be near 70f (21C). It's still recommended to have sunscreen during the day, as the sun has the potential to do damage to unprotected skin.

September is one of the most pleasant times of year to travel to New York weather-wise. The average high temperature is 75F (24C) and the average low is 61F (16C). While the beginning of the month, is summer-like, the temperature rarely rises above 90F (32C).


The average monthly temperature in September is expected to be close to the climatic norm along with a small positive margin in some places, the National Hydrometeorology Department of the Ministry of Ecology reported.

At nights the temperature will be +18-23˚C. In the afternoons the temperature will be from +24-29˚C, will be +33˚C in some days in the second and third decade. Monthly rainfall is expected to be close to the climatic norm (norm 14-38 mm) and a little above the norm in some places

The figure below presents a compact representation of key lunar data for September 2022. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon.

New York weather in September consists of, on average, about 21 days with clear or partly sunny skies (about 70% of the time). The risk for a cloudy day with some rain is about 30%, however, significant rainy days where 1/2 inch (13 mm) or more rainfalls will occur less than 10% of the time.

The month of September in New York City experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 37% throughout the month. The clearest day of the month is September 23, with clear, mostly clear, or partly cloudy conditions 64% of the time.


SEPTEMBER. Weather conditions: Breezy, comfortable – My favorite time of year! Clothing: September is the best weather in my opinion because it isn't humid and the temperature is comfortable. I normally wear long pants, a short-sleeve shirt, and have a jacket for the evenings.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

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