Weather in September
September in
Bronx County,
New York, ushers in the long-awaited respite from summer's intense heat. The sea temperature reduces to a moderate 70.1°F (21.2°C), portending the return of the cool season. The air starts to abstain from the summer heat, favoring a more temperate, comfortable climate. Daylight yields to longer evenings, a tangible indication of the changing season. September carries the essence of autumn, with its noticeably cooler weather and diminishing daylight.
Ocean temperature
In Bronx County, in September, the average water temperature is 70.2°F (21.2°C).
Note: Swimming in water of 70.2°F (21.2°C) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
In September, the average length of the day in Bronx County is 12h and 27min.
On the first day of September in Bronx County, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm EDT.
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