Weather in Omsk

Planning a trip to Omsk or already here? Get the latest weather information, including forecasts and useful charts, right in this section.

Omsk is characterised by a sharply continental climate, which means significant temperature fluctuations throughout the year. Prepare for distinct seasons: a frosty, snowy winter and a warm, sometimes even hot, summer. The transitional seasons – spring and autumn – are distinguished by rapid changes in weather conditions.

Winter in Omsk is long and cold, with average temperatures significantly below freezing, especially in January and February, when the thermometer drops to -15°C and below. Summer, conversely, is quite warm, peaking in July when the average temperature reaches +20°C, and maximum values can exceed +25°C. This time is ideal for walks and exploring the city in the fresh air.

Precipitation in Omsk is distributed relatively evenly throughout the year, but the total amount is low, making the climate quite dry. The highest amount of rainfall occurs in the summer months, especially in June and August. Spring and autumn are transitional periods when the weather can be changeable, with temperatures gradually rising in spring and falling in autumn.

The climate of Omsk demonstrates a distinct change of seasons with a wide annual temperature range. The hottest month is July, when the average temperature reaches +20.0°C, and daytime highs often rise to +25.1°C. Conversely, the coldest period falls in January, with an average temperature of -15.8°C and nighttime lows dropping to -19.5°C. February is also distinguished by severe frosts, with an average temperature of -14.2°C.

The summer months in Omsk, from June to August, are characterised by warmth. June brings an average temperature of +17.2°C, which reaches its peak in July, while August remains comfortably warm with an average temperature of +17.5°C. The summer period, especially May (where the difference between the maximum and minimum average temperature is about 13°C), is characterised by noticeable diurnal temperature fluctuations: warm days can be followed by quite cool nights. For example, in July, the daytime temperature can reach +25.1°C, while at night it can drop to +14.9°C, creating a difference of more than 10 degrees.

Winter in Omsk is harsh and frosty, especially from December to February. Monthly average temperatures during this period consistently stay significantly below zero: -13.3°C in December, -15.8°C in January, and -14.2°C in February. Nighttime frosts can be very severe, dropping to -16.5°C in December and to -19.5°C in January. Daytime and nighttime temperatures in winter also differ, but the gap is less pronounced than in summer, averaging 6-8°C; for instance, in January, the difference between the average maximum (-12.2°C) and average minimum (-19.5°C) temperature is about 7°C.

Omsk sees a small total amount of precipitation throughout the year, which is typical for its sharply continental climate. Nevertheless, a certain seasonality in its distribution can be identified. The summer months — June, July, and August — are the period with the highest precipitation, averaging 2 mm per month. These months also record the highest number of days with precipitation: 11 days in June and August, and 10 days in July. May and September also bring about 1 mm of precipitation, distributed over 8 days.

The winter period, from December to March, is characterised by minimal precipitation — just 1 mm per month. Given the consistent sub-zero temperatures (from -6.1°C in March to -15.8°C in January), this precipitation falls mainly as snow. The number of days with precipitation in winter averages 7-8 days. November is also a snowy month, with an average precipitation of 1 mm, but with 9 days of precipitation, indicating frequent but not heavy snowfalls or frost.

Thus, the driest months in Omsk, both in terms of precipitation amount and the number of wet days, are January, February, March, and April, when only 1 mm of precipitation falls and there are 7 days with it. Despite summer (June-August) being considered the "wettest" season, the total amount of precipitation remains low, indicating a prevalence of dry weather in the city for most of the year. Precipitation in summer falls as rain.

When planning a trip to Omsk, it is important to choose the right wardrobe, considering the city's sharply continental climate with its frosty winters and warm summers. In the winter months, from December to March, when average temperatures drop to -15°C and below, very warm outerwear (a down jacket or fur coat), insulated trousers, a hat, a scarf, mittens or gloves, as well as warm waterproof footwear are mandatory. The principle of layering is especially relevant here: thermal underwear, a fleece jacket, and a sweater will help retain heat.

In summer, from June to August, the weather in Omsk is warm, with average temperatures around +20°C, and during the day, the thermometer can rise to +25°C and above. Bring light clothing made from natural fabrics: T-shirts, shorts, dresses, and sundresses. However, evenings can be cool, so a light jacket or sweater will come in handy. Do not forget sunscreen, a hat, and sunglasses. Since the summer months see the highest amount of precipitation (albeit small), a light umbrella or raincoat may prove useful. Comfortable shoes for long walks are a must at any time of the year.

In spring (April-May) and autumn (September-October), the weather in Omsk is changeable. The temperature can fluctuate significantly, so layering will save you again. It is recommended to bring a mid-season jacket, a sweater, jeans or thick trousers, as well as a hat and gloves in case of a cold snap, especially in early spring and late autumn. Waterproof shoes will also be useful, considering the possible melting of snow in spring or autumn rains.