September weather forecast and climate
Kotlik, AK

Weather in September

September, the first month of the autumn, in Kotlik, is still a cool month, with average temperature fluctuating between 42.6°F (5.9°C) and 50.4°F (10.2°C).

Temperature

In September, the average high-temperature marginally drops, from a moderate 57.6°F (14.2°C) in August, to a fresh 50.4°F (10.2°C). The average low-temperature, in September, is 42.6°F (5.9°C).

Humidity

In September, the average relative humidity in Kotlik is 80%.

Rainfall

In Kotlik, it is raining for 15.9 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, in Kotlik, Alaska, there are 113.9 rainfall days, and 13.46" (342mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Kotlik are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 1.2 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, there are 88.6 snowfall days, and 19.76" (502mm) of snow is accumulated.

Daylight

In Kotlik, the average length of the day is 12.9h.

Sunshine

The average sunshine in Kotlik, Alaska, is 4.3h.

UV index

The average daily maximum UV index in Kotlik is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in September transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Kotlik?

In Kotlik, in September, the average high-temperature is 50.4°F (10.2°C), and the average low-temperature is 42.6°F (5.9°C).

What is the average humidity in September in Kotlik?

The average relative humidity in September is 80%.

How many days does it rain in September in Kotlik?

In Kotlik, Alaska, during September, the rain falls for 15.9 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When does it start snowing in Kotlik?

September is the first month it typically snows in Kotlik, Alaska. Throughout September, in the average 1.2 snowfall days, it receives 0.16" (4mm) of snow.

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

In September, the average length of the day in Kotlik is 12.9h.

How long on average sun shines in September in Kotlik?

In September, the average sunshine in Kotlik, Alaska, is 4.3h.

What is the UV index intensity in September in Kotlik?

In Kotlik, Alaska, the average daily maximum UV index in September is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.

Average temperature in September
Kotlik, AK

Average temperature in September - Kotlik, AK
  • Average high temperature in September: 50.4°F

The warmest month (with the highest average high temperature) is July (59°F).
The month with the lowest average high temperature is January (13.1°F).

  • Average low temperature in September: 42.6°F

The month with the highest average low temperature is July (48.6°F).
The coldest month (with the lowest average low temperature) is January (5.9°F).

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Average pressure in September
Kotlik, AK

Average pressure in September - Kotlik, AK
  • Average pressure in September: 29.73"

The month with the highest atmospheric pressure is May (29.92").
The month with the lowest atmospheric pressure is October (29.67").

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Average wind speed in September
Kotlik, AK

Average wind speed in September - Kotlik, AK
  • Average wind speed in September: 11.9mph

The windiest month (with the highest average wind speed) is February (13.3mph).
The calmest month (with the lowest average wind speed) is May (10.1mph).

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Average humidity in September
Kotlik, AK

Average humidity in September - Kotlik, AK
  • Average humidity in September: 80%

The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is June (71%).

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Average rainfall in September
Kotlik, AK

Average rainfall in September - Kotlik, AK
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is March (0.75").

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Average rainfall days in September
Kotlik, AK

Average rainfall days in September - Kotlik, AK
  • Average rainfall days in September: 15.9 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (2.7 days).

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Average snowfall in September
Kotlik, AK

Average snowfall in September - Kotlik, AK
  • Average snowfall in September: 0.16"

The month with the highest snowfall is February (3.62").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Kotlik, AK

Average snowfall days in September - Kotlik, AK
  • Average snowfall days in September: 1.2 days

The month with the highest number of snowfall days is January (13.8 days).
Months with the least snowfall days are July and August (0 days).

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

Average daylight in September / Average sunshine in September - Kotlik, AK
  • Average daylight in September: 12.9h

The month with the longest days is June (Average daylight: 20.1h).
The month with the shortest days is December (Average daylight: 4.9h).

  • Average sunshine in September: 4.3h

The month with the most sunshine is May (Average sunshine: 7.8h).
Months with the least sunshine are January and December (Average sunshine: 2.3).

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Average sunshine days in September
Kotlik, AK

Average sunshine days in September - Kotlik, AK
  • Average sunshine days in September: 9.9 days

The month with the most sunshine days is January (15.8 days).
The month with the least sunshine days is September (9.9 days).

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Average UV index in September
Kotlik, AK

Average UV index in September - Kotlik, AK
  • Average UV index in September: 2

Months with the highest UV index are May, June, July and August (UV index 3).
Months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in September
Kotlik, AK

Average cloud cover in September - Kotlik, AK
  • Average cloud cover in September: 67

The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is June (Cloud cover 53).

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Average visibility in September
Kotlik, AK

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

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

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