September weather forecast
White Horse Beach, MA

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Weather in September

The first month of the autumn, September, is still a pleasant month in White Horse Beach, Massachusetts, with an average temperature varying between 70.3°F (21.3°C) and 59.5°F (15.3°C).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's warm 76.6°F (24.8°C) to a pleasant 70.3°F (21.3°C). In September, the nighttime temperature lowers to an average of 59.5°F (15.3°C).

Humidity

In White Horse Beach, the average relative humidity in September is 78%.

Rainfall

In White Horse Beach, during September, the rain falls for 11 days and regularly aggregates up to 1.14" (29mm) of precipitation. In White Horse Beach, during the entire year, the rain falls for 132.2 days and collects up to 16.3" (414mm) of precipitation.

Snowfall

In White Horse Beach, snow does not fall in May through October.

Daylight

In White Horse Beach, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:08 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:25 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In White Horse Beach, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature and low-temperature during September are 70.3°F (21.3°C) and 59.5°F (15.3°C) respectively.

What is the average humidity in September?

In White Horse Beach, the average relative humidity in September is 78%.

How much does it rain in September?

In White Horse Beach, during September, the rain falls for 11 days and regularly aggregates up to 1.14" (29mm) of precipitation.

When it does not snow?

In White Horse Beach, snow does not fall in May through October.

How many hours of daylight does White Horse Beach have in September?

In White Horse Beach, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:08 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:25 pm EDT.

How many hours of sunshine does White Horse Beach have in September?

The average sunshine duration in September is 8.4h.

How high is the UV index in September?

In White Horse Beach, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk 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
White Horse Beach, MA

Average temperature in September - White Horse Beach, MA
  • Average high temperature in September: 70.3°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 (35.8°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in September
White Horse Beach, MA

Average pressure in September - White Horse Beach, MA
  • Average pressure in September: 30.06"Hg

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

Average wind speed in September
White Horse Beach, MA

Average wind speed in September - White Horse Beach, MA
  • Average wind speed in September: 9.1mph

The windiest month (with the highest average wind speed) is January (12.3mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).

Average humidity in September
White Horse Beach, MA

Average humidity in September - White Horse Beach, MA
  • Average humidity in September: 78%

The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are March, April and November (74%).

Average rainfall in September
White Horse Beach, MA

Average rainfall in September - White Horse Beach, MA
  • Average rainfall in September: 1.14"

The wettest months (with the highest rainfall) are July and October (1.65").
The driest month (with the least rainfall) is February (1.02").

Average rainfall days in September
White Horse Beach, MA

Average rainfall days in September - White Horse Beach, MA
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in September
White Horse Beach, MA

Average snowfall in September - White Horse Beach, MA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
White Horse Beach, MA

Average snowfall days in September - White Horse Beach, MA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.1 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
White Horse Beach, MA

Average daylight in September / Average sunshine in September - White Horse Beach, 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 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in September
White Horse Beach, MA

Average sunshine days in September - White Horse Beach, MA
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is July (14.8 days).

Average UV index in September
White Horse Beach, MA

Average UV index in September - White Horse Beach, 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).

Average cloud cover in September
White Horse Beach, MA

Average cloud cover in September - White Horse Beach, 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).

Average visibility in September
White Horse Beach, MA

Average visibility in September - White Horse Beach, 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).

White Horse Beach, Massachusetts, USA

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