September weather forecast
Kotzebue, AK

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A winter day in Kotzebue Village, Alaska - the sunlit buildings and snow-peaked mountains afar
A winter day in Kotzebue Village, Alaska - the sunlit buildings and snow-peaked mountains afar

Weather in September

September signals the beginning of Kotzebue's weather shift, with temperatures dropping and snowfall reappearing at 0.35" (9mm). The abrupt plunge intimates the retreat of summer and the impending arrival of winter. The landscape begins its transformation from lush greenery to a barren winter wonderland. Despite the initiate cold, daylight hours remain relatively long, allowing for the enjoyment of outdoor activities with the proper attire.

Temperature

The start of September comes with a small reduction in the average high-temperature, subtly receding from a fresh 54.5°F (12.5°C) in August to a chilly 46.6°F (8.1°C). September nights register a minor temperature decline, steadying at a cold 40.8°F (4.9°C).

Humidity

In Kotzebue, the average relative humidity in September is 75%.

Rainfall

In Kotzebue, during September, the rain falls for 11.1 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 83.3 rainfall days, and 11.85" (301mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Kotzebue are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 2.7 snowfall days, it receives 0.35" (9mm) of snow. Throughout the year, in Kotzebue, there are 86.9 snowfall days, and 21.46" (545mm) of snow is accumulated.

Ocean temperature

In September, the average ocean temperature is 46.8°F (8.2°C).
Note: Dipping in 46.8°F (8.2°C) at temperatures less than 50°F (10°C) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

In Kotzebue, the average length of the day in September is 13h and 5min.
On the first day of September, sunrise is at 7:25 am and sunset at 10:14 pm. On the last day of the month, sunrise is at 9:02 am and sunset at 8:17 pm AKDT.

Sunshine

In September, the average sunshine is 6.2h.

UV index

In Kotzebue, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: During September, 2 as the daily maximum UV index converts into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

What are September temperatures in Kotzebue?

In Kotzebue, 46.6°F (8.1°C) is the average high-temperature and 40.8°F (4.9°C) is the average low-temperature during September.

What is the average humidity in September in Kotzebue?

In September, the average relative humidity is 75%.

How much does it rain in Kotzebue in September?

In September, the rain falls for 11.1 days. Throughout September, 1.22" (31mm) of precipitation is accumulated.

When does it start snowing in Kotzebue?

September is the first month it typically snows. Throughout September, in the average 2.7 snowfall days, it receives 0.35" (9mm) of snow.

How cold is the water in September in Kotzebue?

In Kotzebue, Alaska, the average seawater temperature in September is 46.8°F (8.2°C). Swimming in 46.8°F (8.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in September in Kotzebue?

In September, the average day length in Kotzebue is 13h and 5min.

What time are sunrise and sunset in September in Kotzebue?

In September, on the first day of the month, sunrise is at 7:25 am and sunset at 10:14 pm. On the last day of the month, in Kotzebue, sunrise is at 9:02 am and sunset at 8:17 pm AKDT.

How many hours of sunshine does Kotzebue have in September?

The average sunshine duration in September is 6.2h.

What is the UV index reading in September in Kotzebue?

In September, the average daily maximum UV index in Kotzebue is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Kotzebue, AK

Average temperature in September - Kotzebue, AK
  • Average high temperature in September: 46.6°F

The warmest month (with the highest average high temperature) is July (54.9°F).
The month with the lowest average high temperature is January (6.3°F).

  • Average low temperature in September: 40.8°F

The month with the highest average low temperature is August (48.4°F).
The coldest month (with the lowest average low temperature) is January (-1.1°F).

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Average pressure in September
Kotzebue, AK

Average pressure in September - Kotzebue, AK
  • Average pressure in September: 29.77"Hg

The month with the highest atmospheric pressure is March (29.96"Hg).
The months with the lowest atmospheric pressure are September and October (29.77"Hg).

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Average wind speed in September
Kotzebue, AK

Average wind speed in September - Kotzebue, AK
  • Average wind speed in September: 11.2mph

The windiest month (with the highest average wind speed) is October (13.3mph).
The calmest month (with the lowest average wind speed) is May (7.9mph).

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Average humidity in September
Kotzebue, AK

Average humidity in September - Kotzebue, AK
  • Average humidity in September: 75%

The months with the highest relative humidity are February and March (90%).
The month with the lowest relative humidity is June (74%).

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Average rainfall in September
Kotzebue, AK

Average rainfall in September - Kotzebue, AK
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is August (1.85").
The driest month (with the least rainfall) is June (0.47").

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Average rainfall days in September
Kotzebue, AK

Average rainfall days in September - Kotzebue, AK
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is August (15.2 days).
The months with the least rainy days are January and December (2.3 days).

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Average snowfall in September
Kotzebue, AK

Average snowfall in September - Kotzebue, AK
  • Average snowfall in September: 0.35"

The month with the highest snowfall is March (3.98").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Kotzebue, AK

Average snowfall days in September - Kotzebue, AK
  • Average snowfall days in September: 2.7 days

The month with the highest number of snowfall days is December (12.6 days).
The month with the least snowfall days is July (0 days).

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Average sea temperature in September
Kotzebue, AK

Average sea temperature in September - Kotzebue, AK
  • Average sea temperature in September: 46.6°F

The best month for swimming (with the highest average sea temperature) is August (54.2°F).
The coldest month (with the lowest average sea temperature) is December (29.4°F).

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Average daylight in September /
Average sunshine in September
Kotzebue, AK

Average daylight in September / Average sunshine in September - Kotzebue, AK
  • Average daylight in September: 13h and 1min

The month with the longest days is May (Average daylight: 20h and 0min).
The month with the shortest days is June (Average daylight: 0h and 48min).

  • Average sunshine in September: 6h and 1min

The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).

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Average sunshine days in September
Kotzebue, AK

Average sunshine days in September - Kotzebue, AK
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is June (20.5 days).
The month with the least sunshine days is August (13 days).

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Average UV index in September
Kotzebue, AK

Average UV index in September - Kotzebue, 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, April, November and December (UV index 1).

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Average cloud cover in September
Kotzebue, AK

Average cloud cover in September - Kotzebue, AK
  • Average cloud cover in September: 51

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is June (Cloud cover 39).

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Average visibility in September
Kotzebue, AK

Average visibility in September - Kotzebue, AK
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).

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Kotzebue, Alaska, USA

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