September weather forecast
East Patchogue, NY

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Weather in September

September, the first month of the autumn in East Patchogue, is also an agreeable month, with an average temperature ranging between max 72.1°F (22.3°C) and min 65.3°F (18.5°C).

Temperature

The arrival of September correlates with a minor temperature reduction, down from August's warm 78.1°F (25.6°C) to an agreeable 72.1°F (22.3°C). In East Patchogue, the nocturnal temperatures throughout September show a marginal dip from the daytime averages, settling at an enjoyable 65.3°F (18.5°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

In East Patchogue, in September, during 12.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 155.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.

Snowfall

In East Patchogue, snow does not fall in April, June through September and November.

Daylight

In East Patchogue, the average length of the day in September is 12h and 27min.
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 6:35 pm EDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

In East Patchogue, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What is the usual temperature for East Patchogue in September?

In September, in East Patchogue, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 65.3°F (18.5°C).

What is the average humidity in September in East Patchogue?

In September, the average relative humidity is 74%.

How much does it rain in September?

In East Patchogue, in September, during 12.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow?

In East Patchogue, snow does not fall in April, June through September and November.

Does it snow in September?

In East Patchogue, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in East Patchogue?

The average day length in September is 12h and 27min.

When 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, in East Patchogue, New York, sunrise is at 6:48 am and sunset at 6:35 pm EDT.

How many hours of sunshine does East Patchogue have in September?

In September, the average sunshine duration in East Patchogue is 9.2h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
East Patchogue, NY

Average temperature in September - East Patchogue, NY
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in September
East Patchogue, NY

Average pressure in September - East Patchogue, 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
East Patchogue, NY

Average wind speed in September - East Patchogue, NY
  • Average wind speed in September: 10.4mph

The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).

Average humidity in September
East Patchogue, NY

Average humidity in September - East Patchogue, 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
East Patchogue, NY

Average rainfall in September - East Patchogue, NY
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in September
East Patchogue, NY

Average rainfall days in September - East Patchogue, NY
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
East Patchogue, NY

Average snowfall in September - East Patchogue, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").

Average snowfall days in September
East Patchogue, NY

Average snowfall days in September - East Patchogue, 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 and September (0 days).

Average daylight in September /
Average sunshine in September
East Patchogue, NY

Average daylight in September / Average sunshine in September - East Patchogue, 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
East Patchogue, NY

Average sunshine days in September - East Patchogue, NY
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
East Patchogue, NY

Average UV index in September - East Patchogue, 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
East Patchogue, NY

Average cloud cover in September - East Patchogue, NY
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
East Patchogue, NY

Average visibility in September - East Patchogue, 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).

East Patchogue, New York, USA

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