October weather forecast
Sitka, AK

The glacial carved Three Sisters Mountains in Sitka, Alaska
The glacial carved Three Sisters Mountains in Sitka, Alaska

Weather in October

October, the same as September, in Sitka, Alaska, is a frosty autumn month, with an average temperature ranging between min 41.7°F (5.4°C) and max 46.4°F (8°C).

Temperature

In October, the average high-temperature slightly decreases from a cool 54.1°F (12.3°C) in September to a frosty 46.4°F (8°C). In Sitka, in October, the average low-temperature is 41.7°F (5.4°C).

Humidity

The average relative humidity in October in Sitka is 85%.

Rainfall

In Sitka, in October, during 23.5 rainfall days, 9.02" (229mm) of precipitation is typically accumulated. Throughout the year, in Sitka, Alaska, there are 243.6 rainfall days, and 82.76" (2102mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows in Sitka. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Sitka, during the entire year, snow falls for 52.4 days and aggregates up to 63.58" (1615mm) of snow.

Daylight

The average length of the day in October is 10h and 19min.
On the first day of the month, sunrise is at 7:05 am and sunset at 6:35 pm. On the last day of October, in Sitka, Alaska, sunrise is at 8:10 am and sunset at 5:19 pm AKDT.

Sunshine

The average sunshine in October is 3.5h.

UV index

In October, the average daily maximum UV index in Sitka is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in October interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 October in Sitka?

In October, the average high-temperature is 46.4°F (8°C), and the average low-temperature is 41.7°F (5.4°C).

What is the average humidity in October in Sitka?

The average relative humidity in October in Sitka is 85%.

How much does it rain in Sitka in October?

In October, in Sitka, Alaska, the rain falls for 23.5 days. Throughout October, 9.02" (229mm) of precipitation is accumulated.

When does it start snowing in Sitka?

October is the first month it typically snows in Sitka, Alaska. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow.

How many hours of daylight does Sitka have in October?

In Sitka, Alaska, the average day length in October is 10h and 19min.

What time are sunrise and sunset in October in Sitka?

In October, on the first day of the month, sunrise is at 7:05 am and sunset at 6:35 pm. On the last day of the month, in Sitka, Alaska, sunrise is at 8:10 am and sunset at 5:19 pm AKDT.

How long on average sun shines in October in Sitka?

In October, the average sunshine duration is 3.5h.

What is the UV index intensity in October in Sitka?

In October, the average daily maximum UV index in Sitka is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Sitka, AK

Average temperature in October - Sitka, AK
  • Average high temperature in October: 46.4°F

The warmest month (with the highest average high temperature) is August (57.9°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in October: 41.7°F

The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is February (29.7°F).

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Average pressure in October
Sitka, AK

Average pressure in October - Sitka, AK
  • Average pressure in October: 29.81"Hg

The month with the highest atmospheric pressure is July (30.05"Hg).
The month with the lowest atmospheric pressure is November (29.72"Hg).

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Average wind speed in October
Sitka, AK

Average wind speed in October - Sitka, AK
  • Average wind speed in October: 8.1mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

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Average humidity in October
Sitka, AK

Average humidity in October - Sitka, AK
  • Average humidity in October: 85%

The month with the highest relative humidity is August (89%).
The months with the lowest relative humidity are February and March (83%).

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Average rainfall in October
Sitka, AK

Average rainfall in October - Sitka, AK
  • Average rainfall in October: 9.02"

The wettest month (with the highest rainfall) is November (10.16").
The driest month (with the least rainfall) is May (3.82").

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Average rainfall days in October
Sitka, AK

Average rainfall days in October - Sitka, AK
  • Average rainfall days in October: 23.5 days

The month with the highest number of rainy days is October (23.5 days).
The month with the least rainy days is February (14.6 days).

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Average snowfall in October
Sitka, AK

Average snowfall in October - Sitka, AK
  • Average snowfall in October: 0.12"

The month with the highest snowfall is March (17.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Sitka, AK

Average snowfall days in October - Sitka, AK
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is March (14.1 days).
The 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
Sitka, AK

Average daylight in October / Average sunshine in October - Sitka, AK
  • Average daylight in October: 10h and 19min

The month with the longest days is June (Average daylight: 17h and 47min).
The month with the shortest days is December (Average daylight: 6h and 50min).

  • Average sunshine in October: 3h and 30min

The month with the most sunshine is May (Average sunshine: 6h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in October
Sitka, AK

Average sunshine days in October - Sitka, AK
  • Average sunshine days in October: 6.9 days

The month with the most sunshine days is May (8.8 days).
The month with the least sunshine days is June (4.8 days).

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Average UV index in October
Sitka, AK

Average UV index in October - Sitka, 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 January, November and December (UV index 1).

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Average cloud cover in October
Sitka, AK

Average cloud cover in October - Sitka, AK
  • Average cloud cover in October: 63

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are February, May and September (Cloud cover 60).

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Average visibility in October
Sitka, AK

Average visibility in October - Sitka, AK
  • Average visibility in October: 6mi

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

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