September weather forecast
Newburyport, MA

Panorama of Newburyport Town in Massachusetts, and a view of the State Street, the iconic First Religious Society Church, and the big Merrimack River
Panorama of Newburyport Town in Massachusetts, and a view of the State Street, the iconic First Religious Society Church, and the big Merrimack River

Weather in September

The first month of the autumn, September, is still a pleasant month in Newburyport, Massachusetts, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 56.8°F (13.8°C).

Temperature

In September, the average high-temperature marginally drops from a moderately hot 77°F (25°C) in August to an agreeable 70°F (21.1°C). In September, in Newburyport, Massachusetts, the average low-temperature is 56.8°F (13.8°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

September is the month with the least rainfall in Newburyport. Rain falls for 10.6 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

In Newburyport, Massachusetts, snow does not fall in May through September.

Ocean temperature

In Newburyport, the average seawater temperature in September is 60.8°F (16°C).
Note: For swimming, a surface water temperature of 60.8°F (16°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:08 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:27 pm EDT.

Sunshine

In Newburyport, Massachusetts, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in Newburyport is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Newburyport?

The average high-temperature, in September, in Newburyport, Massachusetts, is 70°F (21.1°C), while the average low-temperature is 56.8°F (13.8°C).

What is the average humidity in September in Newburyport?

In Newburyport, the average relative humidity in September is 77%.

What is the driest month in Newburyport?

September is the month with the least rainfall in Newburyport. Rain falls for 10.6 days and accumulates 1.34" (34mm) of precipitation.

How much does it rain in Newburyport in September?

In September, in Newburyport, Massachusetts, the rain falls for 10.6 days. Throughout September, 1.34" (34mm) of precipitation is accumulated.

When it does not snow in Newburyport?

In Newburyport, Massachusetts, snow does not fall in May through September.

Does it snow in Newburyport in September?

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

What is the ocean temperature in September in Newburyport?

In Newburyport, Massachusetts, in September, the average water temperature is 60.8°F (16°C). Swimming in 60.8°F (16°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

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

In September, the average day length in Newburyport, Massachusetts, is 12h and 29min.

When are sunrise and sunset in September in Newburyport?

On the first day of September in Newburyport, Massachusetts, sunrise is at 6:08 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:27 pm EDT.

How long on average sun shines in September in Newburyport?

The average sunshine duration in September in Newburyport, Massachusetts, is 8.6h.

What is the UV index reading in September in Newburyport?

The average daily maximum UV index in September in Newburyport is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Newburyport, MA

Average temperature in September - Newburyport, MA
  • Average high temperature in September: 70°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in September: 56.8°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

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Average pressure in September
Newburyport, MA

Average pressure in September - Newburyport, 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 (29.92"Hg).

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Average wind speed in September
Newburyport, MA

Average wind speed in September - Newburyport, MA
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in September
Newburyport, MA

Average humidity in September - Newburyport, MA
  • Average humidity in September: 77%

The months with the highest relative humidity are February and June (78%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in September
Newburyport, MA

Average rainfall in September - Newburyport, MA
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.34").

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Average rainfall days in September
Newburyport, MA

Average rainfall days in September - Newburyport, MA
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is May (15.7 days).
The months with the least rainy days are January and February (8.6 days).

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Average snowfall in September
Newburyport, MA

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

The month with the highest snowfall is February (4.02").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Newburyport, MA

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

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in September
Newburyport, MA

Average sea temperature in September - Newburyport, MA
  • Average sea temperature in September: 61°F

The best month for swimming (with the highest average sea temperature) is August (64°F).
The coldest month (with the lowest average sea temperature) is March (37°F).

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

Average daylight in September / Average sunshine in September - Newburyport, MA
  • Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 17min).
The month with the shortest days is December (Average daylight: 9h and 5min).

  • 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 February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Newburyport, MA

Average sunshine days in September - Newburyport, MA
  • Average sunshine days in September: 18 days

The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is March (12.8 days).

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Average UV index in September
Newburyport, MA

Average UV index in September - Newburyport, 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).

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Average cloud cover in September
Newburyport, MA

Average cloud cover in September - Newburyport, MA
  • Average cloud cover in September: 33

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Newburyport, MA

Average visibility in September - Newburyport, 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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