September weather forecastTununak, AK
September
Weather in September
The first month of the autumn, September, is still a chilly month in Tununak, Alaska, with an average temperature fluctuating between 49.3°F (9.6°C) and 46.2°F (7.9°C).Temperature
Tununak in September witnesses an average high-temperature of a chilly 49.3°F (9.6°C), indicating a slight variation from August's 53.2°F (11.8°C). Tununak registers an average low-temperature of 46.2°F (7.9°C) throughout September, a modest decrease from its daytime highs.Humidity
In Tununak, the average relative humidity in September is 83%.Rainfall
The month with the most rainfall is September, when the rain falls for 21.1 days and typically aggregates up to 2.83" (72mm) of precipitation.Snowfall
In Tununak, snow does not fall in July through September.Daylight
The average length of the day in September is 12h and 50min.On the first day of the month, sunrise is at 7:56 am and sunset at 10:03 pm. On the last day of September, sunrise is at 9:06 am and sunset at 8:33 pm AKDT.
Sunshine
In Tununak, the average sunshine in September is 3.6h.UV index
In September, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during September translates into these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tununak, AK
- Average high temperature in September: 49.3°F
The warmest month (with the highest average high temperature) is August (53.2°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in September: 46.2°F
The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Tununak, 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 (29.6"Hg).
Average wind speed in September
Tununak, AK
- Average wind speed in September: 16.4mph
The windiest month (with the highest average wind speed) is November (19.3mph).
The calmest month (with the lowest average wind speed) is July (11.7mph).
Average humidity in September
Tununak, AK
- Average humidity in September: 83%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (79%).
Average rainfall in September
Tununak, AK
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is September (2.83").
The driest month (with the least rainfall) is June (0.87").
Average rainfall days in September
Tununak, AK
- Average rainfall days in September: 21.1 days
The month with the highest number of rainy days is September (21.1 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Tununak, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.78").
The months with the least snowfall are July, August and September (0").
Average snowfall days in September
Tununak, AK
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Tununak, AK
- Average daylight in September: 12h and 48min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- Average sunshine in September: 3h and 36min
The month with the most sunshine is May (Average sunshine: 7h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 48min).
Average sunshine days in September
Tununak, AK
- Average sunshine days in September: 4.7 days
The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is September (4.7 days).
Average UV index in September
Tununak, 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 January, April, November and December (UV index 1).
Average cloud cover in September
Tununak, AK
- Average cloud cover in September: 74
The months with the most cloud cover are September and December (Cloud cover 74).
The month with the least cloud cover is May (Cloud cover 59).
Average visibility in September
Tununak, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).
