Early autumn · Weather & things to do
Manhattan in September
Manhattan cools off: highs slip to 77°F (25°C), from 84°F in August, with lows of 59°F (15°C) and about 4.1 in (105 mm) of rain.
September opens the best stretch on our comfort score, at 83/100 (2nd of 12).
- Avg high
- 77°F (25°C)
- Avg low
- 59°F (15°C)
- Rain
- 4.1 in (105 mm)
- Humidity
- 74%
- Cloud cover
- 48%
- Daylight
- ~12 h 15 min
- Comfort score
- 83/100 · Great
What September feels like
Highs settle around 77°F (25°C), warm enough for short sleeves most of the day.
Nights cool to an average low of 59°F (15°C).
Showers are part of the month, adding up to about 4.1 in (105 mm).
Plan around September
September is one of Manhattan's best months on the climate data.
- Last warm month for a while: October highs fall to 65°F.
- Inside the wettest three-month stretch, August – October.
- Opens the best-scoring stretch on our comfort score: May and September & October.
- Comfort improves from 76/100 in August to 83/100.
- September sits inside the Sep – Nov window our NYC Cultural Weekend route recommends.
What to pack for September
- Light, breathable clotheshighs average 77°F
- Packable rain jacket or umbrellaabout 4.1 in of rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Manhattan in September
September is good outdoor weather here, so these picks lean toward the open air.
Top of the Rock
Open-air decks atop Rockefeller Center with a clear view of the Empire State Building and Central Park.
Why now September scores 83/100 for comfort, good conditions for being outside.
High Line
Elevated rail-line park with plantings, public art and Hudson views from Gansevoort St to Hudson Yards.
Why now Highs near 77°F and 4.1 in of monthly rain make this an easy outdoor pick.
Katz's Delicatessen
Lower East Side deli serving hand-cut pastrami on rye since 1888.
Joe's Pizza
Classic thin New York slice, served fast since 1975.
Museum of Modern Art
Van Gogh, Picasso, Warhol and a strong design collection across six floors in Midtown.
Nearby in September
- New York City in September~5 mi · highs 74°F, 3.8 in rain · 2°C (4°F) cooler by day, about as wet
- Beacon in September~50 mi · highs 78°F, 4.4 in rain · similar daytime temperatures, about as wet
- Philadelphia in September~85 mi · highs 79°F, 4.0 in rain · 1°C (2°F) warmer by day, about as wet
- Hudson in September~102 mi · highs 76°F, 4.3 in rain · similar daytime temperatures, about as wet
These averages also cover Museum Mile.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Manhattan in September: quick answers
Is September a good time to visit Manhattan?
Yes. On the climate data it's one of the best months, scoring 83/100. Expect highs of 77°F (25°C) and 4.1 in (105 mm) of rain. September is inside the Sep – Nov window our NYC Cultural Weekend route recommends.
How hot is Manhattan in September?
Average highs are 77°F (25°C) and average lows 59°F (15°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Manhattan in September?
Some: about 4.1 in (105 mm) of rain falls across September on average, the 6th-wettest month of the year. The annual total is about 48.7 in (1236 mm).
What should I pack for Manhattan in September?
Bring light, breathable clothes (highs average 77°F), packable rain jacket or umbrella (about 4.1 in of rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Manhattan
Routes in season in September
- NYC Cultural Weekend Sep – Nov
Planning Manhattan in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.