September weather forecastSquaw Harbor, AK
September
Weather in September
The first month of the autumn, September, is still a cool month in Squaw Harbor, Alaska, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 51.6°F (10.9°C).Temperature
Squaw Harbor's weather in September, with an average high-temperature of a still cool 51.6°F (10.9°C), subtly shifts from August's 54.7°F (12.6°C). A slight dip in temperature to a chilly 48.2°F (9°C) marks the average nights during September.Humidity
The average relative humidity in September is 84%.Rainfall
In Squaw Harbor, in September, it is raining for 14.8 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 172 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Squaw Harbor, the average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 7:50 am and sunset at 9:33 pm. On the last day of September, sunrise is at 8:44 am and sunset at 8:18 pm AKDT.
Sunshine
In Squaw Harbor, the average sunshine in September 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 health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 2 suggests these recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, AK
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in September: 5h and 18min
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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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
Squaw Harbor, 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).
