September weather forecast
Rocky Point, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Rocky Point, New York, with an average temperature fluctuating between 64.9°F (18.3°C) and 72.1°F (22.3°C).

Temperature

Rocky Point experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 78.3°F (25.7°C) in August to an agreeable 72.1°F (22.3°C). An average low-temperature of 64.9°F (18.3°C), slightly less than the daytime peak, marks the month of September.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In September, the rain falls for 12.6 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. In Rocky Point, during the entire year, the rain falls for 153 days and collects up to 35.04" (890mm) of precipitation.

Snowfall

In Rocky Point, snow does not fall in April, June through November.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:34 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a regular UV index of 5 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

An average high-temperature, in September, in Rocky Point, is 72.1°F (22.3°C) and the average low-temperature is 64.9°F (18.3°C).

What is the average humidity in September?

In September, the average relative humidity is 74%.

How many days does it rain in September?

In September, the rain falls for 12.6 days. Throughout September, 2.32" (59mm) of precipitation is accumulated.

When it does not snow?

In Rocky Point, New York, snow does not fall in April, June through November.

How many hours of daylight does Rocky Point have in September?

In September, the average day length is 12h and 28min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:19 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:34 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September in Rocky Point?

In Rocky Point, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rocky Point, NY

Average temperature in September - Rocky Point, NY
  • Average high temperature in September: 72.1°F

The warmest months (with the highest average high temperature) are July and August (78.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 64.9°F

The months with the highest average low temperature are July and August (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in September
Rocky Point, NY

Average pressure in September - Rocky Point, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Rocky Point, NY

Average wind speed in September - Rocky Point, NY
  • Average wind speed in September: 10.3mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

Average humidity in September
Rocky Point, NY

Average humidity in September - Rocky Point, NY
  • Average humidity in September: 74%

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in September
Rocky Point, NY

Average rainfall in September - Rocky Point, NY
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is January (2.24").

Average rainfall days in September
Rocky Point, NY

Average rainfall days in September - Rocky Point, NY
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Rocky Point, NY

Average snowfall in September - Rocky Point, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.17").
The months with the least snowfall are April, June, July, August, September, October and November (0").

Average snowfall days in September
Rocky Point, NY

Average snowfall days in September - Rocky Point, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Rocky Point, NY

Average daylight in September / Average sunshine in September - Rocky Point, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in September
Rocky Point, NY

Average sunshine days in September - Rocky Point, NY
  • Average sunshine days in September: 15.8 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is August (12.5 days).

Average UV index in September
Rocky Point, NY

Average UV index in September - Rocky Point, NY
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in September
Rocky Point, NY

Average cloud cover in September - Rocky Point, NY
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Rocky Point, NY

Average visibility in September - Rocky Point, NY
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Rocky Point, New York, USA

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