September weather forecast
Quincy, MA

Share
A US flag flying on a stone platform outside the houses of the 2nd and 6th Presidents of the US, in the small town of Quincy, Massachusetts
A US flag flying on a stone platform outside the houses of the 2nd and 6th Presidents of the US, in the small town of Quincy, Massachusetts

Weather in September

As Quincy transitions into autumn in September, it greets visitors with comfortably warm temperatures. The long, hot summer days begin to shorten, paving the way for pleasant autumn evenings. Rainfall is infrequent with clearer skies, offering unobstructed views of the city's autumn foliage. The rich play of fall colors makes the cityscape a sight to behold.

Temperature

The beginning of September in Quincy brings a slight decrease in the average high-temperature, transitioning from a warm 80.2°F (26.8°C) in August to an agreeable 72.7°F (22.6°C). In the month of September, Quincy experiences an average low-temperature of 57.2°F (14°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 6.9 days and accumulates 0.31" (8mm) of precipitation.

Snowfall

June through October are months without snowfall in Quincy.

Daylight

The average length of the day in September in Quincy, Massachusetts, is 12h and 28min.
On the first day of September, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

Sunshine

In September, the average sunshine in Quincy is 8.3h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily high UV index of 4 in September leads to these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
[Resources]

Frequently asked questions

What are the temperatures in Quincy in September?

The high-temperature, in September, in Quincy, records 72.7°F (22.6°C), while the low-temperature is 57.2°F (14°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in September in Quincy?

In September, the average relative humidity in Quincy, Massachusetts, is 76%.

What is the driest month in Quincy?

September is the month with the least rainfall in Quincy, Massachusetts. Rain falls for 6.9 days and accumulates 0.31" (8mm) of precipitation.

How much does it rain in Quincy in September?

In Quincy, in September, during 6.9 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

When it does not snow in Quincy?

In Quincy, Massachusetts, snow does not fall in June through October.

How many hours of daylight does Quincy have in September?

The average day length in September is 12h and 28min.

When are sunrise and sunset in September in Quincy?

On the first day of September in Quincy, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

How long on average sun shines in September in Quincy?

In Quincy, Massachusetts, the average sunshine duration in September is 8.3h.

What is the UV index reading in September in Quincy?

In September, the average daily maximum UV index in Quincy is 4. A UV Index estimate 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
Quincy, MA

Average temperature in September - Quincy, MA
  • Average high temperature in September: 72.7°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

[Resources]

Average pressure in September
Quincy, MA

Average pressure in September - Quincy, 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).

[Resources]

Average wind speed in September
Quincy, MA

Average wind speed in September - Quincy, MA
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

[Resources]

Average humidity in September
Quincy, MA

Average humidity in September - Quincy, MA
  • Average humidity in September: 76%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

[Resources]

Average rainfall in September
Quincy, MA

Average rainfall in September - Quincy, MA
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").

[Resources]

Average rainfall days in September
Quincy, MA

Average rainfall days in September - Quincy, MA
  • Average rainfall days in September: 6.9 days

The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is February (4.3 days).

[Resources]

Average snowfall in September
Quincy, MA

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

The month with the highest snowfall is March (0.83").
The months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Quincy, MA

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

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Quincy, MA

Average daylight in September / Average sunshine in September - Quincy, MA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

[Resources]

Average sunshine days in September
Quincy, MA

Average sunshine days in September - Quincy, MA
  • Average sunshine days in September: 21.2 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is April (17.8 days).

[Resources]

Average UV index in September
Quincy, MA

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

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).

[Resources]

Average cloud cover in September
Quincy, MA

Average cloud cover in September - Quincy, MA
  • Average cloud cover in September: 37

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).

[Resources]

Average visibility in September
Quincy, MA

Average visibility in September - Quincy, 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).

[Resources]

Quincy, Massachusetts, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location