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 sea temperature 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
The arrival of September signals a subtle shift in temperature, down from a moderately hot 73.4°F (23°C) in August to a comfortable 67.1°F (19.5°C). Throughout the September nights, Woolwich encounters a low-temperature of 54.1°F (12.3°C).Humidity
In September, the average relative humidity is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.2 days and typically collects 1.65" (42mm) of precipitation.Snowfall
In Woolwich, snow does not fall in June through September.Ocean temperature
In September, the average ocean temperature is 59.7°F (15.4°C).Note: In water with a temperature of 59.7°F (15.4°C), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:03 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:21 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 estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the ocean temperature in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Woolwich, ME
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Woolwich, ME
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Woolwich, ME
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in September
Woolwich, ME
- Average humidity in September: 80%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Woolwich, ME
- Average rainfall in September: 1.65"
The wettest months (with the highest rainfall) are October and December (3.5").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Woolwich, ME
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in September
Woolwich, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Woolwich, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Woolwich, ME
- Average sea temperature in September: 59.7°F
The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is March (37.9°F).
Average daylight in September /
Average sunshine in September
Woolwich, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in September
Woolwich, ME
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is April (11.9 days).
Average UV index in September
Woolwich, 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
Woolwich, ME
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Woolwich, 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).
Woolwich, Maine, USA
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