This post is a summary of the September weather in New York City, with tips on what to wear as well as things to do. The weather in September in NYC is pleasantly warm with high temperatures ranging between 70 – 8o degrees Fahrenheit (21 – 26 C) and low temperatures ranging between 55 – 65 degrees Fahrenheit (13 – 18 C), while the risk for extended hot spells that are common during July and August is greatly reduced. It’s a sunny month with an average of 21 days of sunny or partially sunny skies. If you are planning to visit New York City in September, you have picked a great month for outdoor activities including walking tours of the city.
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.
Nighttime (and early morning) low temperatures are in the mid 60’s (about 18 C) early in September falling to the mid 50’s (about 13 C) by the end of the month. It’s advisable to pack at least one sweater and/or light jacket. Days, when the high temperature reaches or exceeds 90 F (32 C), occur on average just 1 day early in the month, while low temperatures falling below 50 F (10 C) occur only 2 days near the end of the month.
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 rain falls will occur less than 10% of the time.
Depending on when in September you are coming, your What to Pack list may vary.
Throw in an umbrella, just in case. Though the minute rain hits, umbrella vendors pop up immediately on every corner!
Here is just a small sampling of all the good stuff September has to offer. For even more events, family-friendly activities and things to do at night, see our full list of things to do in September.
San Gennaro Festival September 14-24
A Little Italy tradition for over 90 years, this 10-day festival is a chance to immerse yourself in Italian culture including music and food. This is an absolute must-do when in New York City. Tip: You can learn more about Little Italy by taking one of our pay-what-you-wish tours that include Little Italy such as our SoHo, Little Italy, Chinatown Tour, our Downtown Manhattan 3-hour tour, and our New York in One Day Tour.
New York Caribbean Carnival September 4
It’s hot, hot, hot with the colorful, flavorful and lively parade that starts in Crown Heights, Brooklyn and ends in Park Slope. There will be floats with fantastic dancers shaking their stuff to the sounds of Caribbean culture.
U.S. Open Tennis Championship September 1-10 (begins Aug. 28)
See the top-seeded tennis players in the world at one of the most exciting annual tennis tournaments. Favorites like Venus Williams, Caroline Wozniacki, Roger Federer, and Rafael Nadal will be there. The Open takes place in Flushing, Queens – known for its large Korean and Chinese population. You will need to take the 7 train there. You may find our post Navigating the New York Subway helpful.
Taste of North Brooklyn September 17
Head out to East River State Park to try tasty morsels from over 40 local restaurateurs. A great reason to take the East River Ferry which stops right nearby – and it’s the same cost as the subway!
For more information on these great events and so much more, see our post Things to Do in September.
You picked a great time to visit New York City – make it even better and take a tour with Free Tours by Foot!
Written by Fred Pickhardt
Ocean Weather Services