September weather forecast and climate
Halesite, NY

Weather in September

September, the first month of the autumn, in Halesite, is still a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 64.2°F (17.9°C).

Temperature

In September, the average high-temperature marginally drops, from a warm 79.2°F (26.2°C) in August, to a pleasant 72.5°F (22.5°C). The average low-temperature, in September, is 64.2°F (17.9°C).

Humidity

In Halesite, the average relative humidity in September is 73%.

Rainfall

In Halesite, in September, during 12.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. Throughout the year, in Halesite, there are 152.5 rainfall days, and 35.04" (890mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Ocean temperature

In Halesite, New York,, the average water temperature is 69.6°F (20.9°C).
Note: Swimming in 69.6°F (20.9°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Halesite, the average sunshine in September is 9h.

UV index

The average daily maximum UV index in Halesite, New York, is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Halesite?

In September, the average relative humidity in Halesite is 73%.

How many days does it rain in September in Halesite?

In Halesite, New York, in September, it is raining for 12.8 days, with typically 2.52" (64mm) of accumulated precipitation.

When it does not snow in Halesite?

In Halesite snow does not fall in May through October.

How cold is the water in September in Halesite?

In Halesite, in September, the average water temperature is 69.6°F (20.9°C). Swimming in 69.6°F (20.9°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Halesite have in September?

In September, the average length of the day in Halesite is 12.4h.

How many hours of sunshine does Halesite have in September?

The average sunshine in September is 9h.

What is the UV index intensity in September in Halesite?

In September, the average daily maximum UV index in Halesite, New York, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Halesite, NY

Average temperature in September - Halesite, NY
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure in September
Halesite, NY

Average pressure in September - Halesite, NY
  • Average pressure in September: 30.05"

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

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Average wind speed in September
Halesite, NY

Average wind speed in September - Halesite, NY
  • Average wind speed in September: 9.1mph

The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in September
Halesite, NY

Average humidity in September - Halesite, NY
  • Average humidity in September: 73%

Months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in September
Halesite, NY

Average rainfall in September - Halesite, NY
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is January (2.09").

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Average rainfall days in September
Halesite, NY

Average rainfall days in September - Halesite, NY
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in September
Halesite, NY

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

The month with the highest snowfall is March (1.77").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Halesite, NY

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

The month with the highest number of snowfall days is February (4.9 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in September
Halesite, NY

Average sea temperature in September - Halesite, NY
  • Average sea temperature in September: 69.6°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

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

Average daylight in September / Average sunshine in September - Halesite, NY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
Halesite, NY

Average sunshine days in September - Halesite, NY
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in September
Halesite, NY

Average UV index in September - Halesite, NY
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
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
Halesite, NY

Average cloud cover in September - Halesite, NY
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 48).
Months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in September
Halesite, NY

Average visibility in September - Halesite, NY
  • Average visibility in September: 6mi

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

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