Monthly weather forecast and climate
Sitka, AK

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

Weather in January

January, the same as December, is another cold winter month in Sitka, Alaska, with average temperature varying between 34.7°F (1.5°C) and 30.4°F (-0.9°C). With an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 30.4°F (-0.9°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter, in Sitka, is another cold month, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 35.2°F (1.8°C). In Sitka, the average high-temperature is relatively the same as in January - a still wintry 35.2°F (1.8°C). Weather in February »

Weather in March

March, the first month of the spring, in Sitka, is also a wintry month, with average temperature fluctuating between 37°F (2.8°C) and 30.2°F (-1°C). In March, the average high-temperature is essentially the same as in February - a still cold 37°F (2.8°C). Weather in March »

Weather in April

April, the same as March, is a wintry spring month in Sitka, Alaska, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 42.3°F (5.7°C). In April, the average high-temperature is almost the same as in March - a still wintry 42.3°F (5.7°C). Weather in April »

Weather in May

May, the last month of the spring, in Sitka, is a frosty month, with average temperature fluctuating between 49.6°F (9.8°C) and 41.5°F (5.3°C). In Sitka, the average high-temperature slightly increases, from a cold 42.3°F (5.7°C) in April, to a chilly 49.6°F (9.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a fresh month in Sitka, Alaska, with average temperature fluctuating between 53.6°F (12°C) and 46.2°F (7.9°C). In June, the average high-temperature is relatively the same as in May - a cool 53.6°F (12°C). Weather in June »

Weather in July

July in Sitka, Alaska, is a mild summer month, with temperature in the range of an average high of 57.7°F (14.3°C) and an average low of 50.2°F (10.1°C). In July, the average high-temperature is relatively the same as in June - a mild 57.7°F (14.3°C). Weather in July »

Weather in August

August, the last month of the summer, in Sitka, is another mild month, with temperature in the range of an average high of 57.9°F (14.4°C) and an average low of 51.1°F (10.6°C). The warmest month is August, with an average high-temperature of 57.9°F (14.4°C) and an average low-temperature of 51.1°F (10.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a cool month in Sitka, Alaska, with average temperature fluctuating between 54.1°F (12.3°C) and 47.5°F (8.6°C). In Sitka, Alaska, the average high-temperature in September is practically the same as in August - a cool 54.1°F (12.3°C). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Sitka, Alaska, with average temperature ranging between max 46.4°F (8°C) and min 41.7°F (5.4°C). In October, the average high-temperature marginally drops, from a fresh 54.1°F (12.3°C) in September, to a frosty 46.4°F (8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Sitka, Alaska, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 38.8°F (3.8°C). In November, the average high-temperature marginally drops, from a frosty 46.4°F (8°C) in October, to a cold 38.8°F (3.8°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Sitka, Alaska, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 35.6°F (2°C). In Sitka, Alaska, the average high-temperature in December is essentially the same as in November - a still wintry 35.6°F (2°C). Weather in December »
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FAQ

What is the coldest month in Sitka?

January is the coldest month in Sitka, Alaska, with an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 30.4°F (-0.9°C).

How much does it rain in Sitka?

In Sitka, Alaska, during the entire year, the rain falls for 243.6 days and collects up to 82.76" (2102mm) of precipitation.

When does it snow in Sitka?

January through May, October through December are months with snowfall.

How many days does it snow in Sitka?

In Sitka, Alaska, during the entire year, snow falls for 52.4 days, and aggregates up to 63.58" (1615mm) of snow.

What is the month with the least sunshine in Sitka?

With an average of 2.7h of sunshine, January has the least sunshine of the year in Sitka, Alaska.

What is the month with the lowest UV index in Sitka?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Sitka, Alaska.

What is the least humid month in Sitka?

Months with the lowest humidity are February and March, with an average relative humidity of 83%.

When does it snow the most in Sitka?

The month with the most snowfall is March when snow falls for 14.1 days and typically aggregates up to 17.72" (450mm) of snow.

What is the driest month in Sitka?

The month with the least rainfall in Sitka, Alaska, is May when the rain falls for 19.9 days and typically collects 3.82" (97mm) of precipitation.

What month has the most sunshine in Sitka?

With an average of 6.5h of sunshine, May has the most sunshine of the year.

When it does not snow in Sitka?

In Sitka, Alaska, snow does not fall in June through September.

When are the longest days in Sitka?

With an average of 17.8h of daylight, June has the longest days of the year in Sitka.

What is the month with the highest UV index in Sitka?

July is the month with the highest UV index, with an average maximum UV index of 4.

What is the warmest month in Sitka?

With an average high-temperature of 57.9°F (14.4°C) and an average low-temperature of 51.1°F (10.6°C), August is the warmest month in Sitka, Alaska.

What is the most humid month in Sitka?

August is the most humid month in Sitka, Alaska, with an average relative humidity of 89%.

What is the wettest month in Sitka?

The month with the most rainfall in Sitka is November when the rain falls for 21.2 days and typically aggregates up to 10.16" (258mm) of precipitation.

What is the month with the shortest days in Sitka?

The month with the shortest days is December, with an average of 6.8h of daylight.

Average temperature
Sitka, AK

Average temperature - Sitka, AK

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).

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
Sitka, AK

Average pressure - Sitka, AK

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

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Average wind speed
Sitka, AK

Average wind speed - Sitka, AK

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
Sitka, AK

Average humidity - Sitka, AK

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

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Average rainfall
Sitka, AK

Average rainfall - Sitka, AK

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
Sitka, AK

Average rainfall days - Sitka, AK

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
Sitka, AK

Average snowfall - Sitka, AK

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

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Average snowfall days
Sitka, AK

Average snowfall days - Sitka, AK

The month with the highest number of snowfall days is March (14.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Sitka, AK

Average daylight / Average sunshine - Sitka, AK

The month with the longest days is June (Average daylight: 17.8h).
The month with the shortest days is December (Average daylight: 6.8h).

The month with the most sunshine is May (Average sunshine: 6.5h).
The month with the least sunshine is January (Average sunshine: 2.7h).

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Average sunshine days
Sitka, AK

Average sunshine days - Sitka, AK

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 visibility
Sitka, AK

Average visibility - Sitka, AK

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

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