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Climate and Average Weather Year Round in Omsk Russia

In Omsk, the summers are comfortable and partly cloudy and the winters are frigid, snowy, windy, and overcast. Over the course of the year, the temperature typically varies from -6°F to 77°F and is rarely below -25°F or above 88°F.

Based on the tourism score, the best time of year to visit Omsk for warm-weather activities is from mid June to mid August.

Climate in Omsk

frigidfreezingcoolwarmcoolcoldfreezingfrigidJanFebMarAprMayJunJulAugSepOctNovDecNowNow60%60%18%18%overcastclearprecipitation: 1.4 inprecipitation: 1.4 in0.2 in0.2 inmuggy: 3%muggy: 3%0%0%drydrytourism score: 6.7tourism score: 6.70.00.0
Omsk weather by month. Click on each chart for more information.

The warm season lasts for 3.9 months, from May 12 to September 8, with an average daily high temperature above 63°F. The hottest month of the year in Omsk is July, with an average high of 76°F and low of 57°F.

The cold season lasts for 3.6 months, from November 19 to March 8, with an average daily high temperature below 22°F. The coldest month of the year in Omsk is January, with an average low of -5°F and high of 9°F.

Average High and Low Temperature in Omsk

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 9°F13°F27°F49°F65°F74°F76°F72°F60°F44°F25°F14°F
Temp. 2°F5°F19°F40°F55°F65°F68°F63°F51°F38°F19°F7°F
Low -5°F-3°F10°F30°F43°F54°F57°F52°F41°F29°F12°F-0°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Omsk

Average Hourly Temperature in OmskJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowfrigidfrigidcoldcoldcoolcomfortablevery coldwarmfreezingfreezingvery coldcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Melfort, Saskatchewan, Canada (4,989 miles away) and Red Lake, Ontario, Canada (5,081 miles) are the far-away foreign places with temperatures most similar to Omsk (view comparison).

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In Omsk, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Omsk begins around April 4 and lasts for 6.0 months, ending around October 4.

The clearest month of the year in Omsk is July, during which on average the sky is clear, mostly clear, or partly cloudy 60% of the time.

The cloudier part of the year begins around October 4 and lasts for 6.0 months, ending around April 4.

The cloudiest month of the year in Omsk is January, during which on average the sky is overcast or mostly cloudy 81% of the time.

Cloud Cover Categories in Omsk

Cloud Cover Categories in OmskclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 1260%Jul 1260%Jan 118%Jan 118%Apr 439%Apr 439%Oct 439%Oct 439%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 81%80%71%56%47%42%40%44%53%65%75%80%
Clearer 19%20%29%44%53%58%60%56%47%35%25%20%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Omsk varies throughout the year.

The wetter season lasts 7.1 months, from April 18 to November 20, with a greater than 14% chance of a given day being a wet day. The month with the most wet days in Omsk is July, with an average of 7.0 days with at least 0.04 inches of precipitation.

The drier season lasts 4.9 months, from November 20 to April 18. The month with the fewest wet days in Omsk is February, with an average of 1.7 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Omsk changes throughout the year.

Rain alone is the most common for 7.3 months, from March 27 to November 3. The month with the most days of rain alone in Omsk is July, with an average of 7.0 days.

Snow alone is the most common for 4.7 months, from November 3 to March 27. The month with the most days of snow alone in Omsk is December, with an average of 2.9 days.

Daily Chance of Precipitation in Omsk

Daily Chance of Precipitation in OmsksnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 323%Jul 323%Feb 105%Feb 105%Mar 279%Mar 279%Nov 315%Nov 315%NowNowsnowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 0.0d0.0d0.6d3.1d5.5d6.4d7.0d5.8d4.7d3.2d0.9d0.1d
Mixed 0.1d0.0d0.4d0.5d0.1d0.0d0.0d0.0d0.0d0.7d0.8d0.3d
Snow 2.2d1.6d1.5d0.5d0.1d0.0d0.0d0.0d0.0d0.7d2.5d2.9d
Any 2.4d1.7d2.5d4.1d5.7d6.4d7.0d5.8d4.8d4.6d4.2d3.2d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Omsk experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.2 months, from April 15 to October 21, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Omsk is July, with an average rainfall of 1.4 inches.

The rainless period of the year lasts for 5.8 months, from October 21 to April 15. The month with the least rain in Omsk is January, with an average rainfall of 0.0 inches.

Average Monthly Rainfall in Omsk

Average Monthly Rainfall in OmskrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 inJul 41.4 inJul 41.4 inFeb 30.0 inFeb 30.0 inApr 150.5 inApr 150.5 inOct 210.5 inOct 210.5 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.0″0.0″0.1″0.5″1.0″1.3″1.4″1.2″0.9″0.6″0.2″0.0″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Omsk experiences significant seasonal variation in monthly snowfall.

The snowy period of the year lasts for 6.3 months, from October 8 to April 17, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Omsk is November, with an average snowfall of 4.4 inches.

The snowless period of the year lasts for 5.7 months, from April 17 to October 8. The least snow falls around July 26, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Omsk

The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 2.6″2.1″2.2″1.1″0.3″0.0″0.0″0.0″0.1″1.6″4.4″3.7″

The length of the day in Omsk varies extremely over the course of the year. In 2024, the shortest day is December 21, with 7 hours, 10 minutes of daylight; the longest day is June 21, with 17 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in Omsk

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 7.9h9.7h11.9h14.2h16.2h17.3h16.7h14.9h12.7h10.4h8.4h7.3h

The earliest sunrise is at 4:26 AM on June 17, and the latest sunrise is 5 hours, 5 minutes later at 9:31 AM on December 29. The earliest sunset is at 4:37 PM on December 13, and the latest sunset is 5 hours, 12 minutes later at 9:49 PM on June 24.

Daylight saving time (DST) is not observed in Omsk during 2024.

Sunrise & Sunset with Twilight in Omsk

Sunrise & Sunset with Twilight in OmskJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 174:26 AMJun 174:26 AM9:49 PMJun 249:49 PMJun 24Dec 134:37 PMDec 134:37 PM9:31 AMDec 299:31 AMDec 29daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Omsk

Solar Elevation and Azimuth in OmskJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM00001010101020202030304040500000101010102020203030304040501258NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Omsk

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The perceived humidity level in Omsk, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.

Humidity Comfort Levels in Omsk

Humidity Comfort Levels in OmskJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 260%Feb 260%Jul 183%Jul 183%NowNowcomfortablecomfortabledrydryhumidhumid
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.0d0.3d0.7d0.2d0.0d0.0d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Omsk experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 7.6 months, from October 5 to May 26, with average wind speeds of more than 10.3 miles per hour. The windiest month of the year in Omsk is March, with an average hourly wind speed of 12.0 miles per hour.

The calmer time of year lasts for 4.4 months, from May 26 to October 5. The calmest month of the year in Omsk is July, with an average hourly wind speed of 8.6 miles per hour.

Average Wind Speed in Omsk

Average Wind Speed in OmskwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphMar 212.2 mphMar 212.2 mphAug 18.4 mphAug 18.4 mphOct 510.3 mphOct 510.3 mphMay 2610.3 mphMay 2610.3 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 11.611.912.011.810.89.38.68.89.910.711.411.8

The predominant average hourly wind direction in Omsk varies throughout the year.

The wind is most often from the south for 2.1 weeks, from January 14 to January 29, with a peak percentage of 38% on January 17. The wind is most often from the west for 4.3 months, from January 29 to June 7 and for 5.0 months, from August 15 to January 14, with a peak percentage of 42% on March 29. The wind is most often from the north for 2.3 months, from June 7 to August 15, with a peak percentage of 44% on July 24.

Wind Direction in Omsk

Wind Direction in OmskWSWNWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

To characterize how pleasant the weather is in Omsk throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Omsk for general outdoor tourist activities is from mid June to mid August, with a peak score in the second week of July.

Tourism Score in Omsk

Tourism Score in Omskbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.76.70.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Omsk for hot-weather activities is from late June to late July, with a peak score in the first week of July.

Beach/Pool Score in Omsk

Beach/Pool Score in OmskJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.83.80.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Omsk typically lasts for 4.4 months (134 days), from around May 12 to around September 23, rarely starting before April 25 or after May 30, and rarely ending before September 6 or after October 9.

Time Spent in Various Temperature Bands and the Growing Season in Omsk

Time Spent in Various Temperature Bands and the Growing Season in Omskgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 1250%May 1250%Sep 2350%Sep 2350%May 3090%May 3090%Sep 690%Sep 690%Apr 2510%Apr 2510%Oct 910%Oct 910%0%Nov 270%Nov 27Jul 19100%Jul 19100%NowNowfrigidfreezingcoolcomfortablewarmcold
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Omsk should appear around May 5, only rarely appearing before April 27 or after May 17.

Growing Degree Days in Omsk

Growing Degree Days in OmskJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°FMay 590°FMay 590°FJul 8900°FJul 8900°FSep 141,800°FSep 141,800°FDec 311,874°FDec 311,874°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.2 months, from May 3 to August 8, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year in Omsk is June, with an average of 6.6 kWh.

The darker period of the year lasts for 4.0 months, from October 18 to February 19, with an average daily incident shortwave energy per square meter below 1.7 kWh. The darkest month of the year in Omsk is December, with an average of 0.5 kWh.

Average Daily Incident Shortwave Solar Energy in Omsk

Average Daily Incident Shortwave Solar Energy in OmskbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 166.6 kWhJun 166.6 kWhDec 200.5 kWhDec 200.5 kWhMay 35.4 kWhMay 35.4 kWhAug 85.4 kWhAug 85.4 kWhOct 181.7 kWhOct 181.7 kWhFeb 191.7 kWhFeb 191.7 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 0.71.63.04.65.96.66.25.03.41.90.90.5

For the purposes of this report, the geographical coordinates of Omsk are 54.992 deg latitude, 73.369 deg longitude, and 295 ft elevation.

The topography within 2 miles of Omsk contains only modest variations in elevation, with a maximum elevation change of 190 feet and an average elevation above sea level of 286 feet. Within 10 miles also contains only modest variations in elevation (279 feet). Within 50 miles also contains only modest variations in elevation (285 feet).

The area within 2 miles of Omsk is covered by artificial surfaces (99%), within 10 miles by artificial surfaces (46%) and cropland (41%), and within 50 miles by cropland (78%) and grassland (16%).

This report illustrates the typical weather in Omsk, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There is only a single weather station, Tsentralny Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Omsk.

At a distance of 5 kilometers from Omsk, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Omsk according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.