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
Port Moller's September reports an average high-temperature of a still fresh 51.6°F (10.9°C), exhibiting a minor difference from August. During September, Port Moller's nights hold steady with an average temperature of 48.2°F (9°C), barely dropping from the daytime highs.Humidity
The average relative humidity in September is 84%.Rainfall
In Port Moller, in September, during 14.8 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Port Moller, Alaska, during the entire year, the rain falls for 172 days and collects up to 32.6" (828mm) of precipitation.Snowfall
In Port Moller, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 43min.On the first day of September, sunrise is at 7:48 am and sunset at 9:35 pm. On the last day of the month, sunrise is at 8:45 am and sunset at 8:18 pm AKDT.
Sunshine
In September, the average sunshine is 5.3h.UV index
The average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 2 during September translates into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Port Moller in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Port Moller have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Port Moller have in September?
How high is the UV index in September?
Average temperature in September
Port Moller, AK
- Average high temperature in September: 51.6°F
The warmest month (with the highest average high temperature) is August (54.7°F).
The month with the lowest average high temperature is March (34°F).
- Average low temperature in September: 48.2°F
The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is March (28.9°F).
Average pressure in September
Port Moller, AK
- Average pressure in September: 29.75"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The months with the lowest atmospheric pressure are January and December (29.52"Hg).
Average wind speed in September
Port Moller, AK
- Average wind speed in September: 13.7mph
The windiest month (with the highest average wind speed) is December (16.8mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).
Average humidity in September
Port Moller, AK
- Average humidity in September: 84%
The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is November (79%).
Average rainfall in September
Port Moller, AK
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is July (1.26").
Average rainfall days in September
Port Moller, AK
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is December (18.2 days).
The month with the least rainy days is June (10.3 days).
Average snowfall in September
Port Moller, AK
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Port Moller, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Port Moller, AK
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 6min).
- Average sunshine in September: 5h and 2min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Port Moller, AK
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is June (17.7 days).
The month with the least sunshine days is December (4.6 days).
Average UV index in September
Port Moller, AK
- Average UV index in September: 2
The months with the highest UV index are June, July and August (UV index 3).
The months with the lowest UV index are March and December (UV index 1).
Average cloud cover in September
Port Moller, AK
- Average cloud cover in September: 60
The months with the most cloud cover are February and December (Cloud cover 68).
The months with the least cloud cover are March and September (Cloud cover 60).
Average visibility in September
Port Moller, AK
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Port Moller, Alaska, USA
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