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
A moderate decline in average high-temperatures is noted in September, moving from a pleasant 72.3°F (22.4°C) in August to a comfortable 66.4°F (19.1°C). Peaks Island's nighttime temperature in September falls to an average of 56.3°F (13.5°C).Humidity
In September, the average relative humidity is 79%.Rainfall
September is the month with the least rainfall in Peaks Island. Rain falls for 10.2 days and accumulates 1.18" (30mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Peaks Island, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:15 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:23 pm EDT.
Sunshine
In Peaks Island, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Peaks Island?
What is the average humidity in September in Peaks Island?
What is the driest month in Peaks Island?
How many days does it rain in September in Peaks Island?
When it does not snow in Peaks Island?
Does it snow in Peaks Island in September?
How many hours of daylight does Peaks Island have in September?
When is the sunrise / sunset in September in Peaks Island?
How long on average sun shines in September in Peaks Island?
What is the UV index reading in September in Peaks Island?
Average temperature in September
Peaks Island, ME
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is July (72.5°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Peaks Island, 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
Peaks Island, ME
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity in September
Peaks Island, 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 (74%).
Average rainfall in September
Peaks Island, ME
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is October (2.36").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in September
Peaks Island, ME
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in September
Peaks Island, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Peaks Island, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 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
Peaks Island, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Peaks Island, ME
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Peaks Island, 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
Peaks Island, ME
- Average cloud cover in September: 31
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Peaks Island, 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).
Peaks Island, Maine, USA
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