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
As August transitions into September, Winterport sees a gentle drop in the average high-temperature, transitioning from a moderately hot 75.6°F (24.2°C) to an agreeable 68.7°F (20.4°C). During September, Winterport's temperature falls to a steady low-temperature average of 50.7°F (10.4°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Winterport, during September, the rain falls for 10.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Winterport, Maine, during the entire year, the rain falls for 144.3 days and collects up to 24.61" (625mm) of precipitation.Snowfall
In Winterport, Maine, snow does not fall in June through September.Ocean temperature
In Winterport, the average seawater temperature in September is 55.9°F (13.3°C).Note: It is life-risking to swim in 55.9°F (13.3°C). Briefly staying in 55.4°F (13°C) waters feels unsettling, and temperatures below 50°F (10°C) might result in cold shock and loss of breath control, hinging on personal endurance.
Daylight
In September, the average length of the day in Winterport, Maine, is 12h and 31min.On the first day of September, sunrise is at 5:58 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:17 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions
What are the temperatures in Winterport in September?
What is the average humidity in September in Winterport?
How much does it rain in Winterport in September?
When it does not snow in Winterport?
Does it snow in Winterport in September?
What is the water temperature in September in Winterport?
How many hours of daylight does Winterport have in September?
When are sunrise and sunset in September in Winterport?
How many hours of sunshine does Winterport have in September?
How high is the UV index in September in Winterport?
Average temperature in September
Winterport, ME
- Average high temperature in September: 68.7°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in September: 50.7°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in September
Winterport, 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
Winterport, ME
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Winterport, ME
- Average humidity in September: 80%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and November (77%).
Average rainfall in September
Winterport, ME
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is July (1.42").
Average rainfall days in September
Winterport, ME
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Winterport, 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
Winterport, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Winterport, ME
- Average sea temperature in September: 55.9°F
The best month for swimming (with the highest average sea temperature) is August (57.7°F).
The coldest month (with the lowest average sea temperature) is March (37.5°F).
Average daylight in September /
Average sunshine in September
Winterport, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in September
Winterport, 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 (11.6 days).
Average UV index in September
Winterport, 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, October, November and December (UV index 2).
Average cloud cover in September
Winterport, ME
- Average cloud cover in September: 39
The months with the most cloud cover are February, March and April (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Winterport, ME
- Average visibility in September: 5mi
The months with the highest visibility are October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (5mi).
Winterport, Maine, USA
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