Weather in Adak

Find out what weather awaits you in the city of Adak right now. Below are up-to-date reports, charts, and forecasts to help you better plan your time.

The climate of the city of Adak can be characterized as subarctic maritime, heavily influenced by the ocean. There is no scorching heat or extreme frost here, which are typical for the mainland. The weather is distinguished by high humidity, frequent cloudiness, and a surprisingly stable temperature background: the difference between the averages of the coldest and warmest months is only about 10 degrees.

Seasons change smoothly and almost imperceptibly here. Summer in Adak is cool and fresh, with temperatures rarely exceeding +11°C, which is ideal for lovers of rugged northern nature. Winter is mild for these latitudes: thanks to the warming breath of the ocean, the thermometer usually stays just above zero, and severe frosts happen infrequently.

When planning a trip, it is worth considering that precipitation here is a constant phenomenon. Even in the "driest" summer months, the number of rainy days varies from 12 to 15, and in winter the weather can be overcast for more than 20 days a month. Travellers are recommended to always have reliable waterproof clothing and wind protection with them, as a clear sky here is a true gift of nature.

The climate in the city of Adak is distinguished by surprising stability and mildness, largely due to the strong influence of the ocean. There are no extreme frosts typical for continental northern territories. The coldest months of the year are January and February, when the average temperature fluctuates between +0.6°C and +1.3°C. Even on the harshest nights, the thermometer rarely drops below -1°C, making the winter here cool and damp, but not freezing.

The summer season in this region of the United States cannot be called hot; rather, it is invigorating and fresh. The warmest month is traditionally considered August with an average temperature of about +10°C. During the day, the air warms up to a maximum of +11°C...+12°C, so a jacket will be needed by tourists even in July and August. This temperature regime excludes sweltering heat and stuffiness, creating comfortable conditions for those who prefer coolness.

A feature of Adak's temperature regime is the minimal amplitude of fluctuations both throughout the year and throughout the day. The difference between daily highs and nightly lows is often only 1–2 degrees. For example, in August, the night temperature (+8.7°C) practically does not differ from the day temperature (+11.2°C). This creates a predictable atmosphere where there are no sudden temperature changes, and the weather feels approximately the same at any time of the day.

The climate in Adak is characterized by high humidity and frequent precipitation throughout the year, however, its intensity is usually low. Judging by statistics, there are no pronounced dry seasons or torrential downpours here: the average level of precipitation fluctuates in a narrow range from 2 to 5 mm per month. At the same time, the number of days with bad weather remains impressive, indicating the prevalence of fine drizzle, fog, or light snow characteristic of this region.

The winter period, especially December and February, can be called the gloomiest time of the year: the number of days with precipitation reaches 22–23 per month. Given average temperatures that stay around 0°C — +1.7°C, there is a high probability of snowfall in these months. In spring, the frequency of precipitation remains high, gradually decreasing by May, so waterproof clothing will be relevant in any season.

The most favourable time for a visit can be considered summer, when a relatively "dry" period sets in. In June and July, the number of rainy days decreases to a minimum — about 12–14 days per month. At this time, when the air warms up to +10°C, precipitation falls exclusively in the form of rain, giving travellers more opportunities for walks around this corner of the United States.

When packing for Adak, it is important to remember that the weather on the Aleutian Islands is harsh and changeable. There is practically no heat here: even in the warmest months, July and August, the temperature rarely rises above +11°C. The main principle of your wardrobe is layering. Be sure to take quality thermal underwear, warm fleece tops, and woollen sweaters with you, which will help retain warmth during the strong winds characteristic of this region of the United States.

Given the high humidity and frequent precipitation all year round (it rains or snows more than half the days in a month), waterproof and windproof outerwear is an absolute necessity. Forget about umbrellas, they are often useless with local gusts of wind; it is better to choose a reliable membrane jacket with a hood and water-resistant trousers. For walks around the island, durable trekking boots with a good tread, resistant to mud and water, are ideal.

Even if you are planning a trip in summer, do not leave your hat, scarf, and gloves at home — the cool sea breeze can be very piercing. In the winter period, when the temperature stays around zero, it is worth adding a warmer down jacket to your luggage. We also recommend giving preference to synthetic materials that dry quickly and wick away moisture, unlike cotton, which remains damp for a long time in such a climate.