Omsk climate
Omsk (Omsk Oblast, Russia) has a warm-summer humid continental climate (Köppen Dfb). The average temperature over the year is 2 °C35 °F, and about 425 mm17 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Omsk climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −163 | −23−10 | −20−3 | 190.8 | 31 |
| Feb | −1210 | −20−5 | −163 | 190.7 | 28 |
| Mar | −327 | −1111 | −719 | 251.0 | 31 |
| Apr | 948 | −229 | 439 | 321.3 | 20 |
| May | 1865 | 642 | 1254 | 411.6 | 5 |
| Jun | 2475 | 1254 | 1864 | 532.1 | 0 |
| Jul | 2577 | 1458 | 2067 | 622.5 | 0 |
| Aug | 2374 | 1254 | 1864 | 491.9 | 0 |
| Sep | 1661 | 642 | 1152 | 311.2 | 2 |
| Oct | 643 | −229 | 236 | 351.4 | 20 |
| Nov | −524 | −1113 | −818 | 341.4 | 30 |
| Dec | −139 | −20−4 | −162 | 251.0 | 31 |
| Year | 2577 | −23−10 | 235 | 42517 | 198 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 97% | 63% | 1.0 | 7:45 |
| Feb | 97% | 63% | 2.1 | 9:35 |
| Mar | 95% | 65% | 3.6 | 11:39 |
| Apr | 75% | 63% | 4.6 | 14:02 |
| May | 64% | 57% | 5.8 | 16:07 |
| Jun | 64% | 58% | 6.1 | 17:20 |
| Jul | 66% | 61% | 5.6 | 16:49 |
| Aug | 64% | 61% | 4.6 | 14:57 |
| Sep | 68% | 64% | 3.3 | 12:37 |
| Oct | 79% | 70% | 1.7 | 10:20 |
| Nov | 91% | 73% | 0.8 | 8:16 |
| Dec | 96% | 68% | 0.7 | 7:12 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Omsk is like
The warmest month is July, with an average high of 25 °C77 °F and a low of 14 °C58 °F. The coldest is January, when highs average −16 °C3 °F and lows −23 °C−10 °F. The climate is extremely continental — the average temperature swings by 39.4 °C70.9 °F between the coldest and the warmest month.
Annual precipitation is moderate at about 425 mm17 in. The wettest three-month stretch is June–August, which brings 39% of the annual total. Months with less than 20 mm0.8 in on average: January and February. The wettest month is July (62 mm2.5 in), the driest is February (19 mm0.7 in).
Relative humidity ranges from 64% in May to 97% in January. The clearest skies (lowest average cloud amount, 57%) are typical of May. Average wind speed near the ground ranges from 9 km/h (6 mph) in July to 16 km/h (10 mph) in March. Daylight lasts from about 7.2 hours in December to 17.3 hours in June.
A lasting snow cover is typical in November–March, when the average snow depth in the reanalysis exceeds 10 cm (deepest in February, about 36 cm).
Best time to visit Omsk
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–August: average highs of 18 °C65 °F to 25 °C77 °F with 41 mm1.6 in to 62 mm2.5 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of −16 °C3 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Omsk
- Winter (December–February) — highs −163 to −12 °C10 °F, lows −23−10 to −20 °C−4 °F, about 21 mm0.8 in of precipitation a month. Pack heavy insulated clothing, thermal base layers, a warm hat, mittens and insulated boots.
- Spring (March–May) — highs −327 to 18 °C65 °F, lows −1111 to 6 °C42 °F, about 33 mm1.3 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Summer (June–August) — highs 2374 to 25 °C77 °F, lows 1254 to 14 °C58 °F, about 55 mm2.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs −524 to 16 °C61 °F, lows −1113 to 6 °C42 °F, about 33 mm1.3 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
How Omsk compares
Of the 169 places in Russia covered by World Climates, Omsk is the 122nd warmest by annual mean temperature and the 150th wettest by annual precipitation. See all of them on the Russia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Petropavl (Kazakhstan, Dfb), Kokshetau (Kazakhstan, Dfb) and Astana (Kazakhstan, Dfb).
Nearby places
- Petropavl 270 km · 2 °C35 °F · 447 mm18 in
- Kokshetau 321 km · 3 °C37 °F · 407 mm16 in
- Pavlodar 384 km · 3 °C38 °F · 317 mm12 in
- Ekibastuz 386 km · 4 °C39 °F · 326 mm13 in
- Astana 443 km · 3 °C38 °F · 371 mm15 in
- Tobolsk 474 km · 0 °C32 °F · 582 mm23 in
- Kurgan 511 km · 2 °C36 °F · 446 mm18 in
- Tyumen 542 km · 1 °C34 °F · 503 mm20 in
Frequently asked questions
What is the warmest month in Omsk?
July is the warmest month in Omsk, with an average high of 25 °C (77 °F) and an average low of 14 °C (58 °F).
What is the coldest month in Omsk?
January is the coldest month, with an average high of -16 °C (3 °F) and an average low of -23 °C (-10 °F).
When does it rain the most in Omsk?
July is the wettest month with about 62 mm (2.5 in) of precipitation; February is the driest with about 19 mm (0.7 in).
What is the best time to visit Omsk?
Judging by long-term averages, the most comfortable months are May–August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.