September weather forecast
Brewster, MA

Weather in September

The first month of the autumn, September, is also an enjoyable month in Brewster, Massachusetts, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 66.6°F (19.2°C).

Temperature

In Brewster, the average high-temperature in September is almost the same as in August - an enjoyable 66.6°F (19.2°C). In Brewster, in September, the average low-temperature is 62.4°F (16.9°C).

Humidity

In September, the average relative humidity in Brewster is 80%.

Rainfall

In September, in Brewster, Massachusetts, the rain falls for 5.5 days. Throughout September, 0.47" (12mm) of precipitation is accumulated. In Brewster, during the entire year, the rain falls for 78.2 days and collects up to 5.75" (146mm) of precipitation.

Snowfall

April through October are months without snowfall in Brewster.

Daylight

In September, the average length of the day in Brewster, Massachusetts, is 12h and 28min.
On the first day of the month, sunrise is at 6:06 am and sunset at 7:14 pm. On the last day of September, in Brewster, sunrise is at 6:36 am and sunset at 6:24 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in Brewster is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the 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 temperature in September in Brewster?

In Brewster, in September, the average high-temperature is 66.6°F (19.2°C), and the average low-temperature is 62.4°F (16.9°C).

What is the average humidity in September in Brewster?

The average relative humidity in September in Brewster, Massachusetts, is 80%.

How much does it rain in Brewster in September?

In Brewster, in September, during 5.5 rainfall days, 0.47" (12mm) of precipitation is typically accumulated.

When it does not snow in Brewster?

In Brewster, snow does not fall in April through October.

How many hours of daylight does Brewster have in September?

In September, the average day length in Brewster is 12h and 28min.

When are sunrise and sunset in September in Brewster?

On the first day of September in Brewster, Massachusetts, sunrise is at 6:06 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:24 pm EDT.

How long on average sun shines in September in Brewster?

In September, the average sunshine duration in Brewster is 8.6h.

How high is the UV index in September in Brewster?

In Brewster, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Brewster, MA

Average temperature in September - Brewster, MA
  • Average high temperature in September: 66.6°F

The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is August (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Brewster, MA

Average pressure in September - Brewster, MA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Brewster, MA

Average wind speed in September - Brewster, MA
  • Average wind speed in September: 13.4mph

The windiest month (with the highest average wind speed) is January (18.3mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).

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Average humidity in September
Brewster, MA

Average humidity in September - Brewster, MA
  • Average humidity in September: 80%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).

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Average rainfall in September
Brewster, MA

Average rainfall in September - Brewster, MA
  • Average rainfall in September: 0.47"

The wettest month (with the highest rainfall) is October (0.87").
The driest months (with the least rainfall) are July and August (0.28").

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Average rainfall days in September
Brewster, MA

Average rainfall days in September - Brewster, MA
  • Average rainfall days in September: 5.5 days

The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in September
Brewster, MA

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

The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Brewster, MA

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

The month with the highest number of snowfall days is January (3.7 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
Brewster, MA

Average daylight in September / Average sunshine in September - Brewster, MA
  • Average daylight in September: 12h and 28min

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in September: 8h and 36min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).

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Average sunshine days in September
Brewster, MA

Average sunshine days in September - Brewster, MA
  • Average sunshine days in September: 23.4 days

The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is February (19.8 days).

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Average UV index in September
Brewster, MA

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

The months with the highest UV index are 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
Brewster, MA

Average cloud cover in September - Brewster, MA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Brewster, MA

Average visibility in September - Brewster, MA
  • 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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