New York · United States
Manhattan in September
In September, Manhattan averages a daytime high of 25 °C and a night-time low of 16 °C, with about 102 mm of rain over the month. Manhattan has no month that is both mild and dry by the measure used here.
- Average high
- 25 °C
- Average low
- 16 °C
- Rain in the month
- 102 mm
- Daylight on 15 Sep
- 12 h 20 min
- Comfortable month
- No
- Places to stay
- 119
When to go
How September compares with the rest of the year in Manhattan
September is the 4th warmest month in Manhattan by average daytime high; across the year the highs run from 4 °C to 29 °C and the lows from -3 °C to 20 °C. By day, September is 4 °C cooler than August, and October is 6 °C cooler than September.
September brings 102 mm of rain, more than the monthly average of 99 mm (1192 mm a year); it is tied for the 7th wettest month.
On 15 September the sun is up for about 12 h 20 min, against 9 h 20 min at the shortest and 15 h 10 min at the longest point of the year (calculated from the latitude, sunrise to sunset).
| Month | High | Low | Rain | Comfortable |
|---|---|---|---|---|
| January | 4 °C | -3 °C | 89 mm | |
| February | 6 °C | -3 °C | 77 mm | |
| March | 10 °C | 1 °C | 111 mm | |
| April | 16 °C | 6 °C | 104 mm | |
| May | 21 °C | 11 °C | 92 mm | |
| June | 26 °C | 17 °C | 108 mm | |
| July | 29 °C | 20 °C | 104 mm | |
| August | 29 °C | 20 °C | 106 mm | |
| September | 25 °C | 16 °C | 102 mm | |
| October | 19 °C | 10 °C | 102 mm | |
| November | 13 °C | 4 °C | 86 mm | |
| December | 7 °C | 0 °C | 110 mm |
Comfortable means average daytime high between 18 °C and 29 °C and under 80 mm of rain in the month. Averages for 1991–2020 over the surrounding area, a grid square about 50 km across, so a coast or a nearby mountain can make the town itself warmer or cooler. Data: CRU TS v4.10, Climatic Research Unit, University of East Anglia (Open Database License).
When to go
Is September a good time to visit Manhattan?
Not by the measure used here: about 102 mm of rain is 80 mm or more. No month in Manhattan meets it.
The measure is about weather for a city stay only; it says nothing about events, school holidays or prices.
Public holidays in United States in September
Nationwide public holidays; shops and offices may close on these dates.
Where to stay
Where to stay in Manhattan
This guide lists 119 places to stay in Manhattan, hotels recorded in Wikidata. By straight-line distance from the centre: under 1 km, 18; 1–3 km, 82; 3–10 km, 19.
Sources: climate from CRU TS v4.10 (Climatic Research Unit, University of East Anglia; Open Database License), 1991–2020 averages; day length calculated from the latitude; public holidays from python-holidays (MIT); places to stay from each operator's own public pages and Wikidata. How this guide is made.