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 start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 75.4°F (24.1°C) in August to an agreeable 68.2°F (20.1°C). Nighttime temperature dips to a mean of 51.6°F (10.9°C) during September.Humidity
In Surry, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. In Surry, Maine, during the entire year, the rain falls for 137 days and collects up to 24.96" (634mm) of precipitation.Snowfall
June through September are months without snowfall.Ocean temperature
In Surry, Maine, in September, the average water temperature is 56.8°F (13.8°C).Note: Being in 56.8°F (13.8°C) waters at 55.4°F (13°C) is discomforting, but anything below 50°F (10°C) can jeopardize breathing and induce cold shock, factoring in physical endurance.
Daylight
In September, the average length of the day is 12h and 31min.On the first day of September, sunrise is at 5:57 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 6:16 pm EDT.
Sunshine
In Surry, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
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?
When are sunrise and sunset in September?
How many hours of sunshine does Surry have in September?
What is the UV index intensity in September?
Average temperature in September
Surry, ME
- Average high temperature in September: 68.2°F
The warmest months (with the highest average high temperature) are July and August (75.4°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in September
Surry, 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
Surry, ME
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are January and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Surry, ME
- Average humidity in September: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Surry, ME
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is July (1.3").
Average rainfall days in September
Surry, ME
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Surry, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Surry, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Surry, ME
- Average sea temperature in September: 56.8°F
The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in September /
Average sunshine in September
Surry, 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 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Surry, ME
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (11.9 days).
Average UV index in September
Surry, 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
Surry, ME
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in September
Surry, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Surry, Maine, USA
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