September weather forecastNew Sweden, ME
September
Weather in September
The first month of the autumn, September, is still a comfortable month in New Sweden, Maine, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 46°F (7.8°C).Temperature
September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 73.6°F (23.1°C) in August to a comfortable 64.9°F (18.3°C). During September nights, New Sweden witnesses a consistent average temperature of 46°F (7.8°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 144 rainfall days, and 32.95" (837mm) of precipitation is accumulated.Snowfall
In New Sweden, snow does not fall in June through September.Daylight
In New Sweden, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 5:52 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:13 pm EDT.
Sunshine
In New Sweden, the average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index in New Sweden is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 3 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
New Sweden, ME
- Average high temperature in September: 64.9°F
The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in September: 46°F
The month with the highest average low temperature is July (54.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).
Average pressure in September
New Sweden, ME
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is September (30.02"Hg).
The months with the lowest atmospheric pressure are June and July (29.89"Hg).
Average wind speed in September
New Sweden, ME
- Average wind speed in September: 6.9mph
The windiest months (with the highest average wind speed) are February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in September
New Sweden, ME
- Average humidity in September: 80%
The months with the highest relative humidity are February and March (93%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
New Sweden, ME
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is February (2.2").
Average rainfall days in September
New Sweden, ME
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in September
New Sweden, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (15.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
New Sweden, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (21 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
New Sweden, ME
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in September
New Sweden, ME
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in September
New Sweden, ME
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
New Sweden, ME
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in September
New Sweden, ME
- Average visibility in September: 5mi
The month with the highest visibility is May (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).





