September weather forecastScarborough, ME
September
Weather in September
September in Scarborough, Maine, bids farewell to summer, paving the path for the onset of autumn. The temperature descends to a high of 67.3°F (19.6°C), providing a pleasant backdrop for the vibrant fall foliage. September holds a charming contradiction: the dwindling daylight is quickly replaced by the increasing vibrancy of nature's hues. Decreasing rainfall from August and cooler nights further emphasise the transitional character of this month. Despite the decrease in temperature, the warmth in the hues of changing leaves provides a different kind of comfort, creating an autumnal allure.Temperature
The transition to September in Scarborough results in a modest reduction in average high-temperature, moving from a moderately hot 73.9°F (23.3°C) in August to a refreshing 67.3°F (19.6°C). Nighttime temperatures consistently average a cool 54.7°F (12.6°C) during September.Humidity
In Scarborough, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.5 days and typically collects 0.79" (20mm) of precipitation.Snowfall
In Scarborough, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:16 pm. On the last day of September, in Scarborough, sunrise is at 6:38 am and sunset at 6:23 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index in Scarborough is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Ensure safety - Sun damage prevention is strongly urged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Scarborough, ME
- Average high temperature in September: 67.3°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 (30.4°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in September
Scarborough, ME
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Scarborough, ME
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in September
Scarborough, ME
- Average humidity in September: 79%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Scarborough, ME
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (0.79").
Average rainfall days in September
Scarborough, ME
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is January (5 days).
Average snowfall in September
Scarborough, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Scarborough, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Scarborough, ME
- Average daylight in September: 12h and 30min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Scarborough, ME
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is July (15.3 days).
Average UV index in September
Scarborough, 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
Scarborough, ME
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Scarborough, 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).
