September weather forecast and climate
Larsen Bay, AK

Weather in September

September, the first month of the autumn, in Larsen Bay, is still a cool month, with temperature in the range of an average high of 51.6°F (10.9°C) and an average low of 45.9°F (7.7°C).

Temperature

In Larsen Bay, the average high-temperature is essentially the same as in August - a fresh 51.6°F (10.9°C). In September, in Larsen Bay, the average low-temperature is 45.9°F (7.7°C).

Humidity

The average relative humidity in Larsen Bay is 83%.

Rainfall

In September, the rain falls for 18.8 days. Throughout September, 3.43" (87mm) of precipitation is accumulated. Throughout the year, in Larsen Bay, there are 201 rainfall days, and 34.33" (872mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows in Larsen Bay. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Larsen Bay, Alaska, during the entire year, snow falls for 59 days, and aggregates up to 25.04" (636mm) of snow.

Daylight

In September, the average length of the day is 12.7h.

Sunshine

In Larsen Bay, Alaska, the average sunshine in September is 5.9h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in Larsen Bay?

In Larsen Bay, in September, the average high-temperature is 51.6°F (10.9°C), and the average low-temperature is 45.9°F (7.7°C).

What is the average humidity in September in Larsen Bay?

The average relative humidity in September in Larsen Bay is 83%.

How many days does it rain in September in Larsen Bay?

In Larsen Bay, Alaska, during September, the rain falls for 18.8 days and regularly aggregates up to 3.43" (87mm) of precipitation.

When does it start to snow in Larsen Bay?

September is the first month it typically snows in Larsen Bay. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Larsen Bay?

In Larsen Bay, the average length of the day in September is 12.7h.

How many hours of sunshine does Larsen Bay have in September?

In Larsen Bay, the average sunshine in September is 5.9h.

What is the UV index reading in September in Larsen Bay?

In Larsen Bay, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Larsen Bay, AK

Average temperature in September - Larsen Bay, AK
  • Average high temperature in September: 51.6°F

The warmest month (with the highest average high temperature) is August (56.3°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 45.9°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is March (26.6°F).

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Average pressure in September
Larsen Bay, AK

Average pressure in September - Larsen Bay, AK
  • Average pressure in September: 29.71"

The month with the highest atmospheric pressure is July (29.97").
The month with the lowest atmospheric pressure is December (29.56").

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Average wind speed in September
Larsen Bay, AK

Average wind speed in September - Larsen Bay, AK
  • Average wind speed in September: 10.6mph

The windiest month (with the highest average wind speed) is December (14mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in September
Larsen Bay, AK

Average humidity in September - Larsen Bay, AK
  • Average humidity in September: 83%

Months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is May (80%).

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Average rainfall in September
Larsen Bay, AK

Average rainfall in September - Larsen Bay, AK
  • Average rainfall in September: 3.43"

The wettest month (with the highest rainfall) is October (4.06").
The driest month (with the least rainfall) is June (1.89").

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Average rainfall days in September
Larsen Bay, AK

Average rainfall days in September - Larsen Bay, AK
  • Average rainfall days in September: 18.8 days

Months with the highest number of rainy days are May, September and October (18.8 days).
The month with the least rainy days is March (12.7 days).

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Average snowfall in September
Larsen Bay, AK

Average snowfall in September - Larsen Bay, AK
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (5.83").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Larsen Bay, AK

Average snowfall days in September - Larsen Bay, AK
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is March (11.3 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Larsen Bay, AK

Average daylight in September / Average sunshine in September - Larsen Bay, AK
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 17.9h).
The month with the shortest days is December (Average daylight: 6.7h).

  • Average sunshine in September: 5.9h

The month with the most sunshine is June (Average sunshine: 8.1h).
Months with the least sunshine are January and December (Average sunshine: 2.7).

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Average sunshine days in September
Larsen Bay, AK

Average sunshine days in September - Larsen Bay, AK
  • Average sunshine days in September: 8.9 days

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is February (7 days).

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Average UV index in September
Larsen Bay, AK

Average UV index in September - Larsen Bay, AK
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in September
Larsen Bay, AK

Average cloud cover in September - Larsen Bay, AK
  • Average cloud cover in September: 55

Months with the most cloud cover are February and December (Cloud cover 61).
Months with the least cloud cover are August and September (Cloud cover 55).

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Average visibility in September
Larsen Bay, AK

Average visibility in September - Larsen Bay, AK
  • Average visibility in September: 6mi

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

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