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
Little Deer Isle's weather in September displays an average high-temperature of a refreshing 63.9°F (17.7°C), showing minor disparity from August's 68.9°F (20.5°C). September nights are marked by an average low-temperature of 54.7°F (12.6°C).Humidity
In Little Deer Isle, the average relative humidity in September is 82%.Rainfall
September is the month with the least rainfall in Little Deer Isle. Rain falls for 8.7 days and accumulates 0.91" (23mm) of precipitation.Snowfall
In Little Deer Isle, snow does not fall in May through September.Daylight
In Little Deer Isle, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:10 pm. On the last day of September, in Little Deer Isle, sunrise is at 6:32 am and sunset at 6:16 pm EDT.
Sunshine
In Little Deer Isle, Maine, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What are September temperatures in Little Deer Isle?
What is the average humidity in September in Little Deer Isle?
What is the driest month in Little Deer Isle?
How much does it rain in Little Deer Isle in September?
When it does not snow in Little Deer Isle?
Does it snow in Little Deer Isle in September?
What is the average length of the day in September in Little Deer Isle?
When are sunrise and sunset in September in Little Deer Isle?
How long on average sun shines in September in Little Deer Isle?
What is the UV index intensity in September in Little Deer Isle?
Average temperature in September
Little Deer Isle, ME
- Average high temperature in September: 63.9°F
The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Little Deer Isle, 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
Little Deer Isle, ME
- Average wind speed in September: 9.2mph
The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in September
Little Deer Isle, ME
- Average humidity in September: 82%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Little Deer Isle, ME
- Average rainfall in September: 0.91"
The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in September
Little Deer Isle, ME
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Little Deer Isle, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Little Deer Isle, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Little Deer Isle, ME
- Average daylight in September: 12h and 3min
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 3min
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 30min).
Average sunshine days in September
Little Deer Isle, ME
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is July (15.4 days).
Average UV index in September
Little Deer Isle, 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
Little Deer Isle, 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
Little Deer Isle, 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).
Little Deer Isle, Maine, USA
Weather forecast for your location
2. Allow the app to use your location
