Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from a warm 73.9°F (23.3°C) in August to an agreeable 68.2°F (20.1°C). In Cuttyhunk, the nocturnal temperatures throughout September show a marginal dip from the daytime averages, settling at an enjoyable 63.7°F (17.6°C).Humidity
The average relative humidity in September is 78%.Rainfall
In Cuttyhunk, in September, during 11.6 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, in Cuttyhunk, there are 146.6 rainfall days, and 25.51" (648mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day in Cuttyhunk is 12h and 28min.On the first day of September, sunrise is at 6:10 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:26 pm EDT.
Sunshine
In Cuttyhunk, the average sunshine in September is 8.6h.UV index
In Cuttyhunk, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To protect against the Sun's most potent rays, avoid direct exposure around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What are September temperatures in Cuttyhunk?
What is the average humidity in September in Cuttyhunk?
How many days does it rain in September in Cuttyhunk?
When it does not snow in Cuttyhunk?
How many hours of daylight does Cuttyhunk have in September?
When are sunrise and sunset in September in Cuttyhunk?
How long on average sun shines in September in Cuttyhunk?
How high is the UV index in September in Cuttyhunk?
Average temperature in September
Cuttyhunk, MA
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is August (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Cuttyhunk, 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 (29.94"Hg).
Average wind speed in September
Cuttyhunk, MA
- Average wind speed in September: 12.7mph
The windiest month (with the highest average wind speed) is January (16.2mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).
Average humidity in September
Cuttyhunk, MA
- Average humidity in September: 78%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).
Average rainfall in September
Cuttyhunk, MA
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are August and November (1.73").
Average rainfall days in September
Cuttyhunk, MA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is April (14.5 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in September
Cuttyhunk, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.18").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Cuttyhunk, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.3 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
Cuttyhunk, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
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 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Cuttyhunk, MA
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is April (13.5 days).
Average UV index in September
Cuttyhunk, MA
- Average UV index in September: 5
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
Cuttyhunk, MA
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Cuttyhunk, 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).
Cuttyhunk, Massachusetts, USA
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