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 onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 73.8°F (23.2°C) in August to a pleasant 68.2°F (20.1°C). September introduces a small decrease to a nighttime average of 61.7°F (16.5°C).Humidity
In East Sandwich, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 11.1 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. In East Sandwich, during the entire year, the rain falls for 138.1 days and collects up to 18.74" (476mm) of precipitation.Snowfall
May through October 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 6:08 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:38 am and sunset at 6:24 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In East Sandwich, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September in East Sandwich?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does East Sandwich have in September?
What is the UV index intensity in September?
Average temperature in September
East Sandwich, MA
- Average high temperature in September: 68.2°F
The warmest month (with the highest average high temperature) is August (73.8°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 61.7°F
The months with the highest average low temperature are July and August (67.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
East Sandwich, 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
East Sandwich, MA
- Average wind speed in September: 11.4mph
The windiest month (with the highest average wind speed) is January (15.2mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).
Average humidity in September
East Sandwich, MA
- Average humidity in September: 79%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in September
East Sandwich, MA
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is October (2.2").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in September
East Sandwich, MA
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (8 days).
Average snowfall in September
East Sandwich, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
East Sandwich, MA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.5 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
East Sandwich, 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 months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in September
East Sandwich, MA
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is December (17.6 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in September
East Sandwich, MA
- Average UV index in September: 4
The month with the highest UV index is July (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
East Sandwich, MA
- Average cloud cover in September: 32
The months with the most cloud cover are February, March and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
East Sandwich, 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).
East Sandwich, Massachusetts, USA
Weather forecast for your location
2. Allow the app to use your location