October weather forecast and climate
Gustavus, AK

Brown sand and water on a section of the Gustavus Beach, Alaska, and snow-peaked mountains in the far view
Brown sand and water on a section of the Gustavus Beach, Alaska, and snow-peaked mountains in the far view

Weather in October

October, like September, in Gustavus, Alaska, is another cold autumn month, with average temperature varying between 38.5°F (3.6°C) and 42.3°F (5.7°C).

Temperature

In Gustavus, the average high-temperature marginally drops, from a fresh 51.1°F (10.6°C) in September, to a cold 42.3°F (5.7°C). In October, in Gustavus, the average low-temperature is 38.5°F (3.6°C).

Humidity

In Gustavus, Alaska, the average relative humidity is 86%.

Rainfall

Months with the most rainfall in Gustavus are October and November, with an average 4.21" (107mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. October is the first month it typically snows in Gustavus. Throughout October, in the average 0.5 snowfall days, it receives 1.02" (26mm) of snow. Throughout the year, in Gustavus, there are 60.8 snowfall days, and 53.78" (1366mm) of snow is accumulated.

Daylight

The average length of the day in October is 10.2h.

Sunshine

In October, the average sunshine is 3.2h.

UV index

The average daily maximum UV index in Gustavus is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: In October, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 average humidity in October in Gustavus?

In October, the average relative humidity in Gustavus is 86%.

What is the rainiest month in Gustavus?

Months with the most rainfall in Gustavus are October and November, with an average 4.21" (107mm) of precipitation.

How much does it rain in Gustavus in October?

In Gustavus, in October, during 18.5 rainfall days, 4.21" (107mm) of precipitation is typically accumulated.

When does it start snowing in Gustavus?

October is the first month it typically snows in Gustavus. Throughout October, in the average 0.5 snowfall days, it receives 1.02" (26mm) of snow.

How many hours of daylight does Gustavus have in October?

In October, the average length of the day in Gustavus, Alaska, is 10.2h.

How many hours of sunshine does Gustavus have in October?

The average sunshine in October in Gustavus, Alaska, is 3.2h.

What is the UV index reading in October in Gustavus?

In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in October
Gustavus, AK

Average temperature in October - Gustavus, AK
  • Average high temperature in October: 42.3°F

The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in October: 38.5°F

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).

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Average pressure in October
Gustavus, AK

Average pressure in October - Gustavus, AK
  • Average pressure in October: 29.83"

The month with the highest atmospheric pressure is July (30.03").
The month with the lowest atmospheric pressure is November (29.77").

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Average wind speed in October
Gustavus, AK

Average wind speed in October - Gustavus, AK
  • Average wind speed in October: 5.9mph

The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).

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Average humidity in October
Gustavus, AK

Average humidity in October - Gustavus, AK
  • Average humidity in October: 86%

The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).

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Average rainfall in October
Gustavus, AK

Average rainfall in October - Gustavus, AK
  • Average rainfall in October: 4.21"

The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").

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Average rainfall days in October
Gustavus, AK

Average rainfall days in October - Gustavus, AK
  • Average rainfall days in October: 18.5 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in October
Gustavus, AK

Average snowfall in October - Gustavus, AK
  • Average snowfall in October: 1.02"

The month with the highest snowfall is January (11.22").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Gustavus, AK

Average snowfall days in October - Gustavus, AK
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is March (13.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Gustavus, AK

Average daylight in October / Average sunshine in October - Gustavus, AK
  • Average daylight in October: 10.2h

The month with the longest days is June (Average daylight: 18.2h).
The month with the shortest days is December (Average daylight: 6.5h).

  • Average sunshine in October: 3.2h

The month with the most sunshine is June (Average sunshine: 7.7h).
Months with the least sunshine are January and December (Average sunshine: 2.9).

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Average sunshine days in October
Gustavus, AK

Average sunshine days in October - Gustavus, AK
  • Average sunshine days in October: 11.4 days

Months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).

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Average UV index in October
Gustavus, AK

Average UV index in October - Gustavus, AK
  • Average UV index in October: 2

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

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Average cloud cover in October
Gustavus, AK

Average cloud cover in October - Gustavus, AK
  • Average cloud cover in October: 67

The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).

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Average visibility in October
Gustavus, AK

Average visibility in October - Gustavus, AK
  • Average visibility in October: 5mi

Months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
Months with the lowest visibility are July and August (4mi).

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