September weather forecast
Glen Cove, NY

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Weather in September

September in Glen Cove brings a slight drop in temperature, ranging between 63.5°F (17.5°C) and 73.4°F (23°C), signaling the beginning of autumn. There is a decrease in rainfall, making way for slightly drier yet pleasant days. A slight reduction in available daylight hours and sunshine duration continues the progression towards the fall season. The wind starts to pick up during this month, causing a bit more stir in the environment.

Temperature

In Glen Cove, entering September brings a subtle temperature decrement, reducing from August's moderately hot 80.4°F (26.9°C) to a still warm 73.4°F (23°C). Throughout September, the nighttime temperature averages to a refreshing 63.5°F (17.5°C).

Humidity

In Glen Cove, New York, the average relative humidity in September is 73%.

Rainfall

The month with the least rainfall in Glen Cove, New York, is September, when the rain falls for 12.9 days and typically collects 2.4" (61mm) of precipitation.

Snowfall

In Glen Cove, snow does not fall in May through October.

Daylight

In September, the average length of the day in Glen Cove is 12h and 27min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

The average sunshine in September in Glen Cove is 9h.

UV index

The average daily maximum UV index in September in Glen Cove is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 5 during September leads to these advisories:
Take necessary precautions - Defending against sun damage is advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What is the average September temperature in Glen Cove?

During September, Glen Cove experiences an average high-temperature of 73.4°F (23°C) and a low-temperature of 63.5°F (17.5°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in September in Glen Cove?

The average relative humidity in September in Glen Cove is 73%.

What is the driest month in Glen Cove?

September is the month with the least rainfall in Glen Cove. Rain falls for 12.9 days and accumulates 2.4" (61mm) of precipitation.

How many days does it rain in September in Glen Cove?

In Glen Cove, in September, during 12.9 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow in Glen Cove?

In Glen Cove, New York, snow does not fall in May through October.

What is the average length of the day in September in Glen Cove?

In Glen Cove, the average day length in September is 12h and 27min.

When are sunrise and sunset in September in Glen Cove?

On the first day of September in Glen Cove, New York, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How many hours of sunshine does Glen Cove have in September?

In Glen Cove, New York, the average sunshine duration in September is 9h.

What is the UV index reading in September in Glen Cove?

The average daily maximum UV index in September in Glen Cove is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Glen Cove, NY

Average temperature in September - Glen Cove, NY
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in September: 63.5°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in September
Glen Cove, NY

Average pressure in September - Glen Cove, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Glen Cove, NY

Average wind speed in September - Glen Cove, NY
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in September
Glen Cove, NY

Average humidity in September - Glen Cove, NY
  • Average humidity in September: 73%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

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Average rainfall in September
Glen Cove, NY

Average rainfall in September - Glen Cove, NY
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in September
Glen Cove, NY

Average rainfall days in September - Glen Cove, NY
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in September
Glen Cove, NY

Average snowfall in September - Glen Cove, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Glen Cove, NY

Average snowfall days in September - Glen Cove, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Glen Cove, NY

Average daylight in September / Average sunshine in September - Glen Cove, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Glen Cove, NY

Average sunshine days in September - Glen Cove, NY
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in September
Glen Cove, NY

Average UV index in September - Glen Cove, 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, November and December (UV index 2).

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Average cloud cover in September
Glen Cove, NY

Average cloud cover in September - Glen Cove, NY
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in September
Glen Cove, NY

Average visibility in September - Glen Cove, 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).

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Glen Cove, New York, USA

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