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
September reveals a small adjustment in temperature, transitioning from an average high of a pleasant 68.7°F (20.4°C) in August to a comfortable 63.3°F (17.4°C). Port Clyde notes a consistent average low-temperature of 55.6°F (13.1°C) during September nights.Humidity
The average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall in Port Clyde. Rain falls for 10.4 days and accumulates 1.81" (46mm) of precipitation.Snowfall
May through October are months without snowfall in Port Clyde.Daylight
The average length of the day in September is 12h and 30min.On the first day of September in Port Clyde, sunrise is at 6:01 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 6:19 pm EDT.
Sunshine
The average sunshine in September in Port Clyde is 8.5h.UV index
In Port Clyde, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the temperature in September in Port Clyde?
What is the average humidity in September in Port Clyde?
What is the driest month in Port Clyde?
How much does it rain in Port Clyde in September?
When it does not snow in Port Clyde?
How many hours of daylight does Port Clyde have in September?
When is the sunrise / sunset in September in Port Clyde?
How many hours of sunshine does Port Clyde have in September?
What is the UV index intensity in September in Port Clyde?
Average temperature in September
Port Clyde, ME
- Average high temperature in September: 63.3°F
The warmest month (with the highest average high temperature) is August (68.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is August (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Port Clyde, 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
Port Clyde, ME
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (14.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in September
Port Clyde, ME
- Average humidity in September: 81%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Port Clyde, ME
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Port Clyde, ME
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Port Clyde, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Port Clyde, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Port Clyde, 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 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in September
Port Clyde, ME
- Average sunshine days in September: 18 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in September
Port Clyde, 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
Port Clyde, 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
Port Clyde, 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).
Port Clyde, Maine, USA
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