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
As September commences, the average high-temperature subtly reduces, transitioning from a moderately hot 75.7°F (24.3°C) in August to a pleasant 68.9°F (20.5°C). West Kennebunk experiences a nighttime temperature average of 53.6°F (12°C) during September.Humidity
In West Kennebunk, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 9.5 days and accumulates 0.67" (17mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:07 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:24 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September in West Kennebunk?
What is the driest month in West Kennebunk?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does West Kennebunk have in September?
What is the UV index reading in September?
Average temperature in September
West Kennebunk, ME
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
West Kennebunk, ME
- 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 (29.91"Hg).
Average wind speed in September
West Kennebunk, ME
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
West Kennebunk, ME
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (82%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in September
West Kennebunk, ME
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is October (1.54").
The driest month (with the least rainfall) is September (0.67").
Average rainfall days in September
West Kennebunk, ME
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (12.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
West Kennebunk, ME
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
West Kennebunk, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Kennebunk, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
West Kennebunk, ME
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (14.2 days).
Average UV index in September
West Kennebunk, ME
- Average UV index in September: 4
The month with the highest UV index is 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
West Kennebunk, ME
- Average cloud cover in September: 34
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
West Kennebunk, ME
- 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).
West Kennebunk, Maine, USA
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