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
The transition to September results in a modest reduction in average high-temperature, moving from a pleasant 70.7°F (21.5°C) in August to an enjoyable 64.9°F (18.3°C). West Rockport's nighttime temperature in September drops to an average of 54°F (12.2°C).Humidity
In West Rockport, the average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall in West Rockport. Rain falls for 8.3 days and accumulates 0.75" (19mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:12 pm. On the last day of September, sunrise is at 6:33 am and sunset at 6:18 pm EDT.
Sunshine
In West Rockport, Maine, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 in September translates into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are September temperatures in West Rockport?
What is the average humidity in September in West Rockport?
What is the driest month in West Rockport?
How many days does it rain in September in West Rockport?
When it does not snow in West Rockport?
How many hours of daylight does West Rockport have in September?
When is the sunrise / sunset in September in West Rockport?
How many hours of sunshine does West Rockport have in September?
What is the UV index intensity in September in West Rockport?
Average temperature in September
West Rockport, ME
- Average high temperature in September: 64.9°F
The warmest month (with the highest average high temperature) is August (70.7°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 54°F
The months with the highest average low temperature are July and August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in September
West Rockport, 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
West Rockport, ME
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).
Average humidity in September
West Rockport, ME
- Average humidity in September: 81%
The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
West Rockport, ME
- Average rainfall in September: 0.75"
The wettest months (with the highest rainfall) are April, November and December (1.42").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in September
West Rockport, ME
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is April (13.2 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in September
West Rockport, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
West Rockport, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Rockport, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
West Rockport, ME
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is April (13.8 days).
Average UV index in September
West Rockport, 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
West Rockport, ME
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
West Rockport, 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).
West Rockport, Maine, USA
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