Climate and monthly weather forecast
Kodiak, AK

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Natural forests, mountains, and distant hill ranges surrounding the small town of Kodiak in Alaska
Natural forests, mountains, and distant hill ranges surrounding the small town of Kodiak in Alaska

The climate of Kodiak

Kodiak, Alaska, falls under the Dfc Köppen climate classification, a category marked by severe winters, cool summers, and no dry season. Positioned in the subarctic zone, the city witnesses a fascinating and varied climate throughout the year. The yearly temperature ranges from a low average of 30.7°F (-0.7°C) in January to a high average of 57.6°F (14.2°C) in August. Relatively high humidity prevails all year round, peaking at 86% in July.

Patterns of precipitation demonstrate significant seasonal changes. Rainfall, with an annual average ranging from 1.85" (47mm) in July to 4.53" (115mm) in November, is prevalent all year. Kodiak also experiences snowfall between October and April, with the highest snowfall measures 3.15" (80mm) in March.

Throughout the year, Kodiak faces high wind speeds, ranging from 7.8mph (12.6km/h) in July to 14.2mph (22.9km/h) in December. Despite the generally cloudy weather, with a yearly cloud coverage ranging from 52% in September to 63% in January, the city also enjoys a generous amount of sunshine. The sunshine duration varies from 2.6 hours in December and January to 8.6 hours in July.

The best time to visit Kodiak

Considering the climate data, the ideal time to visit Kodiak largely depends on the preferred activities of visitors. However, June through September is often recommended due to the comfortable average high temperature ranging from 51.4°F (10.8°C) in June to 57.6°F (14.2°C) in August and comparatively less rainy days. The longer daylight hours, ranging from 16.7 hours in May to 17.3 hours in July, offer extended time for outdoor activities.

The worst time to visit Kodiak

The colder months from December to February present significant challenges for visitors. During this period, temperatures drop to an average low of 30.7°F (-0.7°C) in January with high relative humidity of 83% in January & December. These months also record increased snowfall with averages from 2.52" (64mm) in December to 2.64" (67mm) in February. Coupled with the shorter daylight hours, specifically 6.6 hours in December, outdoor activities are significantly limited.

Spring weather in Kodiak

During spring, from March to May, Kodiak undergoes a gradual transition. The average temperature rises from 35.8°F (2.1°C) in March to 45.3°F (7.4°C) in May. Relative humidity stays fairly consistent around 82% from March to May, while daylight hours increase substantially from 11.9 hours in March to 16.7 hours in May. Rainfall averages from 2.36" (60mm) in March to 2.72" (69mm) in May, as the last traces of winter snowfall disappear by May.

Summer weather in Kodiak

From June to August, Kodiak experiences its warmest months. The temperature reaches a peak of 57.6°F (14.2°C) in August, while the sea water temperature rises to 52.3°F (11.3°C) in July and 53.4°F (11.9°C) in August. The city sees minimum average wind speeds of 7.8mph (12.6km/h) in July, and the rainiest days decrease from 12.8 in June to the yearly low of 14.1 in July. Long daylight hours from 18 hours in June to 17.3 hours in July, coupled with increased sunshine hours, make summer an inviting season in Kodiak.

Autumn weather in Kodiak

Autumn in Kodiak, spanning from September to November, then witnesses a steady decline in temperature from 53.1°F (11.7°C) in September to 39.9°F (4.4°C) in November. The sea temperature also declines from 51.1°F (10.6°C) in September to 44.1°F (6.7°C) in November. Though the daylight hours shorten from 12.8hours in September to 8 hours in November, rain becomes more frequent, reaching a peak in November with 4.53" (115mm).

Winter weather in Kodiak

As winter sets in, December through February sees a further drop in temperature, reaching a minimum average of 30.7°F (-0.7°C) in January. The city experiences its highest snowfall from 2.52" (64mm) in December to 2.64" (67mm) in February. The wind speed maintains an average high from 13.9mph (22.4km/h) in December to 14.2mph (22.9km/h) in February. The sea temperature drops to its yearly low of 39.5°F (4.2°C) in February. But despite these harsh conditions, winter presents a distinct serene beauty unique to Kodiak.

Weather in January

Kodiak, Alaska's weather in January presents a wintry picture complete with snowfall and low temperatures; marking the start of a prominent winter season. There's a noticeable transition from December as both the high and low mercury readings drop to 35.4°F (1.9°C) and 30.7°F (-0.7°C) respectively. Weather in January »

Weather in February

In February, the Kodiak weather plays with slightly warmer temperatures, rising marginally from January. February days have a slightly longer daylight duration, inviting more outdoor activities across the city. This month experiences fewer rainfall days and average rainfall measures a lower 2.8" (71mm). Weather in February »

Weather in March

The Kodiak weather begins to show signs of spring in March. The mercury rises in comparison to February with daily temperatures becoming more comfortable. This month observes an increase in daylight and sunshine, with residents starting to feel the arrival of spring. Weather in March »

Weather in April

In Kodiak, the Alaska weather in April brings a profound shift towards spring conditions. The average temperature, daylight hours, and sunshine duration increase considerably compared to March. However, April brings the highest number of rainfall days with an average of 15.1 days. Weather in April »

Weather in May

May showcases the Kodiak weather transitioning fully into the spring season, with warmer temperatures, extended daylight hours, and an abundance of sunshine. In May, the weather becomes markedly warmer compared to April, and snowfall gives way to rainfall. Weather in May »

Weather in June

In June, the Kodiak, Alaska weather takes a leap towards summer. June marks a considerable change from May, bringing warmer temperatures, lengthier daylight hours, and less rainfall. The onset of summer in Kodiak is a season of constant light, with the city experiencing the longest daylight hours annually. Weather in June »

Weather in July

July ushers in the peak of summer in Kodiak, Alaska’s weather cycle. There's a noticeable shift in weather from June, offering higher temperatures, constant sunshine, and a reduced cloud cover. The month is characterized by the warmest sea temperatures of the year which tempt locals and tourists to the coast. Weather in July »

Weather in August

August in Kodiak holds onto the tempo of summer weather, despite slight changes in temperature and rainfall from July. This month holds the distinction of the highest average temperatures, offering relief to the residents from the otherwise chilly conditions. Weather in August »

Weather in September

The Kodiak, Alaska weather in September, presents an interplay of summer and autumn, with temperature and rainfall changes becoming more noticeable. A significant change from August's weather is the decrease in daylight hours, indicating the onset of autumn. Weather in September »

Weather in October

October embodies the essence of autumn in Kodiak’s weather repertoire. Compared to September, this month sees a major decrease in temperature, telling the start of a cooling trend. Kodiak continues to witness longer rainfall hours, even after the fairly high September rainfall. Weather in October »

Weather in November

The Kodiak weather in November takes a profound turn towards winter. November’s characteristic weather change from October is the drop in both average temperatures and sea temperatures. The weather in November observes a shift from rainfall to snowfall, setting the city for its yearly snowy season. Weather in November »

Weather in December

Weather in Kodiak, Alaska for December marks the onset of the winter season. December sees a steady drop in temperature, compared to November and is characterized by increased snowfall days. Despite the freezing weather, December maintains high humidity levels, similar to the previous month. Weather in December »
Updated: Feb 9, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the coldest time of year in Kodiak?

January brings the lowest temperatures, with an average high of 35.4°F (1.9°C) and an average low of 30.7°F (-0.7°C).

How much does it rain in Kodiak?

Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.

When does it snow in Kodiak?

Months with snowfall in Kodiak, Alaska, are January through May, September through December.

How much does it snow in Kodiak?

In Kodiak, during the entire year, snow falls for 35.1 days and aggregates up to 13.74" (349mm) of snow.

What are the months with the least sunshine in Kodiak?

January and December, with an average of 2.6h of sunshine, are months with the least sunshine in Kodiak, Alaska.

When is the lowest UV index in Kodiak?

January is the month with the lowest UV index in Kodiak, Alaska, with an average maximum UV index of 1.

What are the least humid months in Kodiak?

The months with the lowest humidity in Kodiak, Alaska, are March and November, with an average relative humidity of 80%.

When does it snow the most in Kodiak?

The month with the most snowfall is March, when snow falls for 8.5 days and typically aggregates up to 3.15" (80mm) of snow.

When is the ocean coldest in Kodiak?

March is the month with the coldest seawater in Kodiak, with an average ocean temperature of 39.6°F (4.2°C).

When is Daylight Saving Time (DST) in Kodiak?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Kodiak, Alaska, and the time zone changes from AKST to AKDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from AKDT to AKST.

When it does not snow in Kodiak?

In Kodiak, snow does not fall in June through August.

When are the longest days in Kodiak?

June has the longest days of the year in Kodiak, with an average of 18h and 0min of daylight.

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

The months with the highest UV index in Kodiak are June through September, with an average maximum UV index of 3.

What is the most humid month in Kodiak?

With an average relative humidity of 86%, July is the most humid month in Kodiak, Alaska.

What is the driest month in Kodiak?

The month with the least rainfall in Kodiak is July, when the rain falls for 14.1 days and typically collects 1.85" (47mm) of precipitation.

What month has the most sunshine in Kodiak?

With an average of 8.3h of sunshine, July has the most sunshine of the year.

What is the warmest month in Kodiak?

In Kodiak, the peak temperatures are generally noted in August, averaging a high of 57.6°F (14.2°C) and a low of 50.7°F (10.4°C).

When is the ocean warmest in Kodiak?

With an average ocean temperature of 53.4°F (11.9°C), August is the month with the warmest seawater in Kodiak, Alaska.

What is the wettest month in Kodiak?

The months with the most rainfall in Kodiak are October and November, with an average 4.53" (115mm) of precipitation.

What is the month with the shortest days in Kodiak?

December has the shortest days of the year in Kodiak, with an average of 6h and 36min of daylight.

Average temperature
Kodiak, AK

Average temperature - Kodiak, AK

The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).

The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).

Average pressure
Kodiak, AK

Average pressure - Kodiak, AK

The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).

Average wind speed
Kodiak, AK

Average wind speed - Kodiak, AK

The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity
Kodiak, AK

Average humidity - Kodiak, AK

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).

Average rainfall
Kodiak, AK

Average rainfall - Kodiak, AK

The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").

Average rainfall days
Kodiak, AK

Average rainfall days - Kodiak, AK

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).

Average snowfall
Kodiak, AK

Average snowfall - Kodiak, AK

The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Kodiak, AK

Average snowfall days - Kodiak, AK

The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average sea temperature
Kodiak, AK

Average sea temperature - Kodiak, AK

The best month for swimming (with the highest average sea temperature) is August (53.4°F).
The coldest month (with the lowest average sea temperature) is March (39.5°F).

Average daylight / Average sunshine
Kodiak, AK

Average daylight / Average sunshine - Kodiak, AK

The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).

The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).

Average sunshine days
Kodiak, AK

Average sunshine days - Kodiak, AK

The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).

Average UV index
Kodiak, AK

Average UV index - Kodiak, AK

The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).

Average visibility
Kodiak, AK

Average visibility - Kodiak, AK

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

Kodiak, Alaska, USA

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