September weather forecast
North Eastham, MA

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Weather in September

September, the first month of the autumn in North Eastham, is still a refreshing month, with an average temperature fluctuating between 62.4°F (16.9°C) and 66.4°F (19.1°C).

Temperature

September's presence marks an average high-temperature of an enjoyable 66.4°F (19.1°C), subtly varied from August's 71.1°F (21.7°C). North Eastham's September nights experience a subtle temperature dip to an average of 62.4°F (16.9°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In North Eastham, in September, it is raining for 10 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 136.1 rainfall days, and 17.24" (438mm) of precipitation is accumulated.

Snowfall

In North Eastham, Massachusetts, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:06 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:22 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In North Eastham, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take precautions - Protection against sunburn is recommended. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

What is the average September temperature?

In North Eastham, in September, the average high-temperature is 66.4°F (19.1°C), and the average low-temperature is 62.4°F (16.9°C).

What is the average humidity in September?

In September, the average relative humidity is 80%.

How many days does it rain in September?

In September, the rain falls for 10 days. Throughout September, 1.42" (36mm) of precipitation is accumulated.

When it does not snow?

In North Eastham, snow does not fall in May through October.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:06 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:22 pm EDT.

How long on average sun shines in September in North Eastham?

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

What is the UV index intensity in September in North Eastham?

In North Eastham, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
North Eastham, MA

Average temperature in September - North Eastham, MA
  • Average high temperature in September: 66.4°F

The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is August (67.6°F).
The coldest months (with the lowest average low temperature) are January and February (31.6°F).

Average pressure in September
North Eastham, MA

Average pressure in September - North Eastham, 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).

Average wind speed in September
North Eastham, MA

Average wind speed in September - North Eastham, MA
  • Average wind speed in September: 13.5mph

The windiest month (with the highest average wind speed) is January (18.5mph).
The calmest months (with the lowest average wind speed) are July and August (11.6mph).

Average humidity in September
North Eastham, MA

Average humidity in September - North Eastham, 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%).

Average rainfall in September
North Eastham, MA

Average rainfall in September - North Eastham, MA
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is October (2.17").
The driest months (with the least rainfall) are February and November (1.18").

Average rainfall days in September
North Eastham, MA

Average rainfall days in September - North Eastham, MA
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
North Eastham, MA

Average snowfall in September - North Eastham, MA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
North Eastham, MA

Average snowfall days in September - North Eastham, MA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
North Eastham, MA

Average daylight in September / Average sunshine in September - North Eastham, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in September
North Eastham, MA

Average sunshine days in September - North Eastham, MA
  • Average sunshine days in September: 18.1 days

The month with the most sunshine days is August (18.2 days).
The month with the least sunshine days is December (13.1 days).

Average UV index in September
North Eastham, MA

Average UV index in September - North Eastham, 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).

Average cloud cover in September
North Eastham, MA

Average cloud cover in September - North Eastham, MA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
North Eastham, MA

Average visibility in September - North Eastham, 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).

North Eastham, Massachusetts, USA

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