October weather forecast
Gustavus, AK

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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 in Gustavus presents an array of weather changes, marking the progression into late fall. After several months of absence, snowfall makes a slight reappearance with around 1.02" (26mm). The temperature witnesses a significant plunge, preparing the city for the approaching winter. While the daylight hours have reduced dramatically, the tinted leaves on the trees create a beautiful autumn vista. The climate of October adds influx of colours to the natural scenery of Gustavus.

Temperature

A subtle shift in Gustavus's weather is observed as September turns into October, with the average high temperature reducing from a fresh 51.1°F (10.6°C) to a cold 42.3°F (5.7°C). October nights witness a slight temperature decrease, averaging at 38.5°F (3.6°C).

Humidity

The average relative humidity in October is 86%.

Rainfall

The wettest months in Gustavus are October and November, with an average 4.21" (107mm) of rainfall.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 1.02" (26mm) of snow. In Gustavus, during the entire year, snow falls for 60.8 days and aggregates up to 53.78" (1366mm) of snow.

Daylight

The average length of the day in October is 10h and 13min.
On the first day of October in Gustavus, sunrise is at 7:09 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 5:14 pm AKDT.

Sunshine

The average sunshine in October is 3.2h.

UV index

The average daily maximum UV index in October in Gustavus is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 2 in October translates into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during October?

In October, in Gustavus, the average high-temperature is 42.3°F (5.7°C), and the average low-temperature is 38.5°F (3.6°C).

What is the average humidity in October?

In October, the average relative humidity is 86%.

What is the rainiest month?

The wettest months are October and November, with an average 4.21" (107mm) of rainfall.

How much does it rain in October?

In October, the rain falls for 18.5 days. Throughout October, 4.21" (107mm) of precipitation is accumulated.

When does it start snowing?

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

What is the average length of the day in October?

In October, the average day length is 10h and 13min.

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 7:09 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 8:18 am and sunset at 5:14 pm AKDT.

How many hours of sunshine does Gustavus have in October?

In October, the average sunshine duration is 3.2h.

What is the UV index intensity in October?

In October, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk 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 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).

Average pressure in October
Gustavus, AK

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

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

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).

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%).

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").

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).

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").
The months with the least snowfall are May, June, July, August and September (0").

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).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Gustavus, AK
  • Average daylight in October: 10h and 1min

The month with the longest days is June (Average daylight: 18h and 12min).
The month with the shortest days is December (Average daylight: 6h and 30min).

  • Average sunshine in October: 3h and 1min

The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).

Average sunshine days in October
Gustavus, AK

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

The 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).

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).
The months with the lowest UV index are November and December (UV index 1).

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).

Average visibility in October
Gustavus, AK

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

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

Gustavus, Alaska, USA

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