September weather forecast
Bellport, NY

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Weather in September

September, the first month of the autumn in Bellport, is still a pleasant month, with an average temperature fluctuating between 65.3°F (18.5°C) and 71.4°F (21.9°C).

Temperature

With the arrival of September, Bellport experiences a modest decline in average high-temperatures, transitioning from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.4°F (21.9°C). Bellport registers a steady nighttime temperature averaging an enjoyable 65.3°F (18.5°C) throughout September.

Humidity

In September, the average relative humidity is 75%.

Rainfall

The months with the least rainfall are January, February and September Rain falls for 12.4 days and accumulates 2.01" (51mm) of rain.

Snowfall

May through October are months without snowfall in Bellport, New York.

Daylight

In September, the average length of the day in Bellport, New York, is 12h and 27min.
On the first day of September in Bellport, 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 6:35 pm EDT.

Sunshine

The average sunshine in September in Bellport is 9.1h.

UV index

In September, the average daily maximum UV index in Bellport is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What are the temperatures in Bellport in September?

The average high-temperature, in September, in Bellport, is 71.4°F (21.9°C), while the average low-temperature is 65.3°F (18.5°C).

What is the average humidity in September in Bellport?

In September, the average relative humidity is 75%.

What is the driest month in Bellport?

January, February and September are months with the least rain in Bellport, New York, when the rain falls for 12.4 days and typically aggregates up to 2.01" (51mm) of rain.

How many days does it rain in September in Bellport?

In Bellport, New York, in September, it is raining for 12.4 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow in Bellport?

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

How many hours of daylight does Bellport have in September?

The average day length in September in Bellport, New York, is 12h and 27min.

When are sunrise and sunset in September in Bellport?

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 6:35 pm EDT.

How long on average sun shines in September in Bellport?

In Bellport, the average sunshine duration in September is 9.1h.

What is the UV index intensity in September in Bellport?

In September, the average daily maximum UV index in Bellport is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Bellport, NY

Average temperature in September - Bellport, NY
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in September: 65.3°F

The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in September
Bellport, NY

Average pressure in September - Bellport, 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).

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Average wind speed in September
Bellport, NY

Average wind speed in September - Bellport, NY
  • Average wind speed in September: 11.1mph

The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).

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Average humidity in September
Bellport, NY

Average humidity in September - Bellport, NY
  • Average humidity in September: 75%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in September
Bellport, NY

Average rainfall in September - Bellport, NY
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").

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Average rainfall days in September
Bellport, NY

Average rainfall days in September - Bellport, NY
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).

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Average snowfall in September
Bellport, NY

Average snowfall in September - Bellport, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Bellport, NY

Average snowfall days in September - Bellport, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Bellport, NY

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 1min

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

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Average sunshine days in September
Bellport, NY

Average sunshine days in September - Bellport, NY
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in September
Bellport, NY

Average UV index in September - Bellport, 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).

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Average cloud cover in September
Bellport, NY

Average cloud cover in September - Bellport, NY
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in September
Bellport, NY

Average visibility in September - Bellport, 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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Bellport, New York, USA

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