September weather forecastMenemsha, MA
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Menemsha, Massachusetts, with an average temperature ranging between max 68.2°F (20.1°C) and min 63.7°F (17.6°C).Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 73.9°F (23.3°C) in August to a pleasant 68.2°F (20.1°C). In Menemsha, a slight decrease from the daytime peak is noted during the month of September, with an average low-temperature of 63.7°F (17.6°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Menemsha, in September, it is raining for 11.4 days, with typically 1.85" (47mm) of accumulated precipitation. In Menemsha, during the entire year, the rain falls for 146.4 days and collects up to 25.47" (647mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:15 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:26 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Menemsha, 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
Menemsha, 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 (29.94"Hg).
Average wind speed in September
Menemsha, MA
- Average wind speed in September: 12.6mph
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
Menemsha, MA
- Average humidity in September: 79%
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
Menemsha, MA
- Average rainfall in September: 1.85"
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
Menemsha, MA
- Average rainfall days in September: 11.4 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
Menemsha, 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
Menemsha, 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
Menemsha, MA
- Average daylight in September: 12h and 30min
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 42min
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 42min).
Average sunshine days in September
Menemsha, 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
Menemsha, 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
Menemsha, 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
Menemsha, 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).
