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
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a mild 59.9°F (15.5°C) in August to a cool 52.5°F (11.4°C). In September, Akiachak records an average nighttime temperature of 41.5°F (5.3°C).Humidity
The average relative humidity in September in Akiachak is 79%.Rainfall
In Akiachak, in September, it is raining for 15.5 days, with typically 1.85" (47mm) of accumulated precipitation. In Akiachak, Alaska, during the entire year, the rain falls for 129.5 days and collects up to 16.46" (418mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Akiachak, Alaska. Throughout September, in the average 0.7 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 74.8 snowfall days, and 22.91" (582mm) of snow is accumulated.Daylight
In September, the average length of the day in Akiachak is 12h and 51min.On the first day of September, sunrise is at 7:40 am and sunset at 9:49 pm. On the last day of the month, sunrise is at 8:52 am and sunset at 8:18 pm AKDT.
Sunshine
In September, the average sunshine is 4.8h.UV index
In September, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 2 in September translates into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What is the usual temperature for Akiachak in September?
What is the average humidity in September in Akiachak?
How many days does it rain in September in Akiachak?
When does it start to snow in Akiachak?
What is the average length of the day in September in Akiachak?
When is the sunrise / sunset in September in Akiachak?
How many hours of sunshine does Akiachak have in September?
How high is the UV index in September in Akiachak?
Average temperature in September
Akiachak, AK
- Average high temperature in September: 52.5°F
The warmest month (with the highest average high temperature) is July (62.4°F).
The month with the lowest average high temperature is January (12.2°F).
- Average low temperature in September: 41.5°F
The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is January (3.7°F).
Average pressure in September
Akiachak, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.92"Hg).
The month with the lowest atmospheric pressure is December (29.64"Hg).
Average wind speed in September
Akiachak, AK
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in September
Akiachak, AK
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is June (65%).
Average rainfall in September
Akiachak, AK
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (2.09").
The driest months (with the least rainfall) are January and April (0.91").
Average rainfall days in September
Akiachak, AK
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (19.7 days).
The month with the least rainy days is March (4.4 days).
Average snowfall in September
Akiachak, AK
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Akiachak, AK
- Average snowfall days in September: 0.7 days
The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Akiachak, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in September: 4h and 5min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in September
Akiachak, AK
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is March (17.5 days).
The month with the least sunshine days is August (8.6 days).
Average UV index in September
Akiachak, AK
- Average UV index in September: 2
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in September
Akiachak, AK
- Average cloud cover in September: 62
The months with the most cloud cover are July and August (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 54).
Average visibility in September
Akiachak, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and December (6mi).
The months with the lowest visibility are January, February, March, April and November (5mi).
Akiachak, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location
