September weather forecast
Brewster, NY

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Weather in September

The first month of the autumn, September, is still a warm month in Brewster, New York, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 73.6°F (23.1°C).

Temperature

During the shift to September, Brewster records a mild decrease in average high-temperature, moving from a moderately hot 81.1°F (27.3°C) in August to a still warm 73.6°F (23.1°C). The average nighttime temperature lowers to a refreshing 56.1°F (13.4°C) throughout September.

Humidity

In Brewster, the average relative humidity in September is 78%.

Rainfall

In September, the rain falls for 12 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. In Brewster, during the entire year, the rain falls for 150.6 days and collects up to 29.09" (739mm) of precipitation.

Snowfall

June through September are months without snowfall in Brewster.

Daylight

The average length of the day in September in Brewster is 12h and 28min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine in Brewster is 8.7h.

UV index

The average daily maximum UV index in September in Brewster is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, a regular UV index of 4 translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Brewster?

An average high-temperature, in September, in Brewster, is 73.6°F (23.1°C) and the average low-temperature is 56.1°F (13.4°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is calculated to be 86°F (30°C).

What is the average humidity in September in Brewster?

In Brewster, New York, the average relative humidity in September is 78%.

How many days does it rain in September in Brewster?

In Brewster, New York, in September, during 12 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow in Brewster?

In Brewster, New York, snow does not fall in June through September.

Does it snow in Brewster in September?

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

What is the average length of the day in September in Brewster?

The average day length in September in Brewster, New York, is 12h and 28min.

When are sunrise and sunset in September in Brewster?

In September, on the first day of the month, sunrise is at 6:21 am and sunset at 7:27 pm. On the last day of the month, in Brewster, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How many hours of sunshine does Brewster have in September?

In Brewster, New York, the average sunshine duration in September is 8.7h.

What is the UV index reading in September in Brewster?

The average daily maximum UV index in September in Brewster, New York, is 4. A UV Index of 3 to 5 symbolizes 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
Brewster, NY

Average temperature in September - Brewster, NY
  • Average high temperature in September: 73.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 56.1°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in September
Brewster, NY

Average pressure in September - Brewster, NY
  • Average pressure in September: 30.06"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).

Average wind speed in September
Brewster, NY

Average wind speed in September - Brewster, NY
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Brewster, NY

Average humidity in September - Brewster, NY
  • Average humidity in September: 78%

The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in September
Brewster, NY

Average rainfall in September - Brewster, NY
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is February (1.73").

Average rainfall days in September
Brewster, NY

Average rainfall days in September - Brewster, NY
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (7 days).

Average snowfall in September
Brewster, NY

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

The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Brewster, NY

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

The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Brewster, 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 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Brewster, NY

Average sunshine days in September - Brewster, NY
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is June (12.2 days).

Average UV index in September
Brewster, NY

Average UV index in September - Brewster, NY
  • Average UV index in September: 4

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

Average cloud cover in September
Brewster, NY

Average cloud cover in September - Brewster, NY
  • Average cloud cover in September: 37

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Brewster, NY

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

The months with the highest visibility are January, March, April, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May and June (5mi).

Brewster, New York, USA

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