September weather forecastLincolnville, ME
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Lincolnville, Maine, with an average temperature ranging between max 64.8°F (18.2°C) and min 54°F (12.2°C).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from an agreeable 70.3°F (21.3°C) in August to a comfortable 64.8°F (18.2°C). Throughout September, Lincolnville records an average temperature of 54°F (12.2°C) at night.Humidity
The average relative humidity in September is 81%.Rainfall
In Lincolnville, in September, during 10 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 146 rainfall days, and 32.4" (823mm) of precipitation is accumulated.Snowfall
In Lincolnville, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 5:59 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 6:18 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. 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
Average temperature in September
Lincolnville, ME
- Average high temperature in September: 64.8°F
The warmest months (with the highest average high temperature) are July and August (70.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in September
Lincolnville, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Lincolnville, ME
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (13mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Lincolnville, ME
- Average humidity in September: 81%
The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Lincolnville, ME
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is July (1.73").
Average rainfall days in September
Lincolnville, ME
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Lincolnville, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lincolnville, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lincolnville, ME
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Lincolnville, ME
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in September
Lincolnville, ME
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Lincolnville, ME
- Average cloud cover in September: 32
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Lincolnville, 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).





