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
With the onset of September, Mashpee experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 73.6°F (23.1°C) in August to an agreeable 68.2°F (20.1°C). Mashpee's average nighttime temperature in September modestly descends to an enjoyable 62.2°F (16.8°C).Humidity
The average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In Mashpee, snow does not fall in May through October.Daylight
In Mashpee, Massachusetts, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:08 am and sunset at 7:14 pm. On the last day of September, in Mashpee, Massachusetts, sunrise is at 6:38 am and sunset at 6:24 pm EDT.
Sunshine
In September, the average sunshine in Mashpee is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Take necessary precautions - Defending against sun damage is advocated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What are the temperatures in Mashpee in September?
What is the average humidity in September in Mashpee?
What is the driest month in Mashpee?
How much does it rain in Mashpee in September?
When it does not snow in Mashpee?
What is the average length of the day in September in Mashpee?
What time are sunrise and sunset in September in Mashpee?
How long on average sun shines in September in Mashpee?
What is the UV index reading in September in Mashpee?
Average temperature in September
Mashpee, MA
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is August (68.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Mashpee, 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
Mashpee, MA
- Average wind speed in September: 11.7mph
The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).
Average humidity in September
Mashpee, MA
- Average humidity in September: 79%
The months with the highest relative humidity are May, June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in September
Mashpee, MA
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
Mashpee, MA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Mashpee, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mashpee, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 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
Mashpee, 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 February (Average sunshine: 4h and 36min).
Average sunshine days in September
Mashpee, MA
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is April (13 days).
Average UV index in September
Mashpee, 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
Mashpee, MA
- Average cloud cover in September: 32
The months with the most cloud cover are March and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Mashpee, 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).
Mashpee, Massachusetts, USA
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