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
As September arrives, Biddeford's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 74.1°F (23.4°C) to a pleasant 68°F (20°C). Biddeford, during the month of September, experiences an average low-temperature of 54.7°F (12.6°C).Humidity
The average relative humidity in September in Biddeford is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 1.34" (34mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Biddeford, Maine, is 12h and 29min.On the first day of September in Biddeford, Maine, sunrise is at 6:06 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:24 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the average September temperature in Biddeford?
What is the average humidity in September in Biddeford?
What is the driest month in Biddeford?
How many days does it rain in September in Biddeford?
When it does not snow in Biddeford?
Does it snow in Biddeford in September?
How many hours of daylight does Biddeford have in September?
What time are sunrise and sunset in September in Biddeford?
How many hours of sunshine does Biddeford have in September?
What is the UV index reading in September in Biddeford?
Average temperature in September
Biddeford, ME
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Biddeford, 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
Biddeford, 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
Biddeford, ME
- Average humidity in September: 79%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Biddeford, ME
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Biddeford, ME
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Biddeford, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Biddeford, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Biddeford, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Biddeford, ME
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is April (12.9 days).
Average UV index in September
Biddeford, ME
- Average UV index in September: 4
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Biddeford, ME
- Average cloud cover in September: 34
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
Biddeford, 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).
Biddeford, Maine, USA
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