Weather in Iliamna

Stay up to date with the meteorological conditions when travelling to the town of Iliamna. This section presents fresh weather data and detailed forecasts to help you wisely plan your time and prepare for your journey.

The climate in this picturesque corner of the USA can be described as harsh and cool, bordering on subarctic. Iliamna is characterised by distinct seasonality, where a long winter gives way to a short but fresh summer. This destination is unlikely to suit lovers of beach heat, but it will be a true discovery for those who appreciate invigorating coolness and an escape from exhausting high temperatures.

The winter months here are truly frosty: in January, the average temperature holds around -10°C, and at night it can drop even lower. Summer arrives gently, bringing comfortable warmth but not hot weather. Even at the height of the season, in July, the air warms up to an average of +13...+14°C, and maximum values rarely exceed +17°C, creating ideal conditions for active tourism.

A specific feature of the local weather is the high frequency of precipitation throughout the year. Regardless of the season, tourists should be prepared for the sky to be frequently overcast: the number of days with precipitation varies from 13 to 19 per month. When packing for the road, be sure to bring waterproof clothing and warm footwear, as rain in summer and snowfall in winter are constant phenomena here.

The climatic conditions in the town of Iliamna are typical for northern latitudes: coolness reigns here, and winters are long and frosty. The coldest month is January with an average figure of -10.1°C, while at night the thermometer often drops to -13.2°C. Travellers planning a visit during the winter period should take care to have reliable warm equipment, as sub-zero temperatures persist from November to March.

Summer in this part of the USA is short and fresh; there is no exhausting heat here. The peak of warmth occurs in July, when the air warms up to an average of 13.7°C, and daily maximums reach a pleasant 17.1°C. In June and August, average values fluctuate around 11–12°C, which creates comfortable conditions for active recreation in nature, though it still requires a windbreaker or sweater.

Daily temperature fluctuations here are quite perceptible: the difference between day and night figures averages 5–8 degrees. For example, in May during the day, the air may warm up to 9.8°C, and by night cool down to 2.6°C. Even in the warmest season, nights remain cool, so multi-layered clothing will be the best choice for tourists to feel comfortable at any time of the day.

Setting off on a journey to this region, it is worth being prepared for the fact that Iliamna is distinguished by high humidity and frequent precipitation throughout the year. There are practically no completely dry periods here: even in months with minimal elemental activity (January, April, June), rain or snow falls for about 13 days.

The peak of inclement weather falls at the end of summer. The record holder is August, when up to 19 rainy days are recorded. Although the total volume of precipitation is small (about 5 mm), its enviable regularity may require adjustments to your plans. May and September also require travellers to have a good raincoat and waterproof footwear, as bad weather in these months is observed on average for 18 days.

In the cold season, the character of precipitation changes to snow. The winter period demonstrates variable statistics: while December and February bring frequent snowfalls (17–18 days with precipitation), January, as a rule, turns out to be a calmer month — about 13 days with precipitation. In spring and late autumn, due to temperatures fluctuating around zero, mixed precipitation often occurs.

A trip to Iliamna requires a careful approach to packing your suitcase, as the weather here can be harsh and changeable. In winter, when the thermometer consistently stays below zero, the foundation of your wardrobe should be high-quality thermal underwear and clothing made of wool or fleece. Be sure to take a warm windproof down jacket, a hat, a scarf, and mittens to feel comfortable in the fresh air even on frosty days.

In summer, there is no exhausting heat — the average temperature stays around +13…+15°C, so it is better to leave light clothes at home. The most winning strategy is the principle of layering: a combination of a t-shirt, a warm sweater, and a windbreaker will allow you to quickly adapt to temperature changes throughout the day. Given the high probability of precipitation at any time of the year, a waterproof jacket with a hood or a reliable raincoat will become indispensable items on your trip.

Pay special attention to footwear: for walks in the surroundings, sturdy waterproof boots with a grooved sole are ideal, protecting your feet from dampness and cold. Also, do not forget to put sunglasses in your luggage — they will be useful both for protection from the summer sun and from bright glare on the snow in winter. A useful addition will be a moisturising cream, which will save your skin from chapping in the cool wind.