Climate and monthly weather forecast
Sitka, AK

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

Weather in January

January, like December, in Sitka, Alaska, is a wintry winter month, with an average temperature varying between 30.4°F (-0.9°C) and 34.7°F (1.5°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

The last month of the winter, February, is also a wintry month in Sitka, Alaska, with an average temperature ranging between min 29.7°F (-1.3°C) and max 35.2°F (1.8°C). In Sitka, the average high-temperature in February is almost the same as in January - a still wintry 35.2°F (1.8°C). Weather in February »

Weather in March

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

Weather in April

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

Weather in May

The last month of the spring, May, is a frosty month in Sitka, Alaska, with an average temperature varying between 49.6°F (9.8°C) and 41.5°F (5.3°C). In May, the average high-temperature marginally rises from a wintry 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 temperature in the range of an average high of 53.6°F (12°C) and an average low of 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 is a mild summer month in Sitka, Alaska, with an average temperature ranging between max 57.7°F (14.3°C) and min 50.2°F (10.1°C). In July, the average high-temperature is almost the same as in June - a moderate 57.7°F (14.3°C). Weather in July »

Weather in August

The last month of the summer, August, is another mild month in Sitka, Alaska, with an average temperature ranging between min 51.1°F (10.6°C) and max 57.9°F (14.4°C). August is the warmest month, 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 also a fresh month in Sitka, Alaska, with an average temperature fluctuating between 54.1°F (12.3°C) and 47.5°F (8.6°C). In September, the average high-temperature is almost 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 an average temperature fluctuating between 46.4°F (8°C) and 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 chilly 46.4°F (8°C). Weather in October »

Weather in November

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

Weather in December

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

What is the coldest month in Sitka?

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 in Sitka, Alaska.

How many days 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?

Months with snowfall in Sitka, Alaska, are January through May, October through December.

How much does it snow in Sitka?

Throughout the year, there are 52.4 snowfall days, and 63.58" (1615mm) of snow is accumulated.

What is the month with the least sunshine in Sitka?

The month with the least sunshine in Sitka is January, with an average of 2.7h of sunshine.

What are the months with the lowest UV index in Sitka?

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

What are the least humid months in Sitka?

February and March, with an average relative humidity of 83%, are the least humid months.

What is the snowiest month 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.

When is Daylight Saving Time (DST) in Sitka?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Sitka, Alaska, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from AKDT to AKST.

What is the driest month in Sitka?

The month with the least rainfall in Sitka 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?

The month with the most sunshine in Sitka, Alaska, is May, with an average of 6.5h of sunshine.

When it does not snow in Sitka?

June through September are months without snowfall in Sitka.

When are the longest days in Sitka?

June has the longest days of the year, with an average of 17h and 47min of daylight.

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

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

What is the warmest month in Sitka?

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

What is the most humid month in Sitka?

The most humid month is August, with an average relative humidity of 89%.

What is the wettest month in Sitka?

The month with the most rainfall 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?

December has the shortest days of the year in Sitka, Alaska, with an average of 6h and 50min 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"Hg).
The month with the lowest atmospheric pressure is November (29.72"Hg).

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

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
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

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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