Omsk weather in August

In August, Omsk sees average daytime highs of 22°C and overnight lows near 11°C, with 61 mm of rain across 10.8 wet days and about 14.7 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 20°C by the end. The sky is clear or mostly clear about 24% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 42 min at the start of August to 13 h 42 min by month's end. Set against the rest of the year, August is Omsk's 4th-clearest and 11th-windiest month. For the whole year in context, see Omsk's year-round climate.

Daytime high
22°
3rd warmest
Overnight low
11°
10th coldest
Rainfall
61 mm
10.8 wet days
Daylight
14 h 48 min
5:48 AM – 8:33 PM
Cloud cover
63%
4th clearest
Wind
12 km/h
11th windiest
Solar energy
4.43 kWh/m²
Travel score
6.5
out of 10

Omsk is city in Russia.

Density
2,046/km²
people per km²
Founded
1716

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 20°C by the end.

A typical August day in Omsk reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 29°C. Set against its neighbours, August runs about 2°C cooler than July and about 6°C warmer than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12413
22413
32413
42413
52413
62413
72413
82313
92313
102312
112312
122312
132312
142312
152212
162212
172211
182211
192211
202211
212111
222111
232111
242110
252110
262010
272010
282010
292010
30209
31199

How August really feels in Omsk

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Omsk weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-13° / -21°154.96.37.50.0
Feb-11° / -19°124.15.49.30.0
Mar-3° / -11°185.2511.40.0
Apr / -1°307.42.513.82.1
May18° / 3680.415.86.1
Jun23° / 12°5310.10176.8
Jul24° / 14°6211.2016.56.7
Aug22° / 11°6110.8014.76.5
Sep16° / 337.80.112.54.9
Oct / -0°3283.110.21.3
Nov-4° / -10°297.67.38.10.0
Dec-11° / -18°216.67.970.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
34951
44951
55050
64951
74951
84951
94852
104753
114753
124654
134555
144456
154357
164258
174159
184060
194060
203961
213961
223862
233862
243862
253763
263763
273763
283763
293664
303664
313664

Chance of precipitation in August

Any precipitation

Omsk gets around 61 mm of rain over 10.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
433
534
634
734
834
934
1034
1134
1234
1334
1434
1534
1635
1735
1835
1935
2035
2135
2235
2336
2436
2535
2635
2735
2835
2934
3034
3134

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1523315
2543214
3543214
4563113
5563113
6583012
7592912
8602911
9612811
10632710
11642610
1265269
1366259
1468248
1570237
1671227
1773216
1874206
1976195
2077185
2178184
2279174
2381163
2482153
2584142
2685132
2786122
2888111
2989101
309091
319181

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 42 min at the start of August to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over August. Sunrise moves from 5:20 AM to 6:17 AM, and sunset from 9:05 PM to 7:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.75:209:05
215.75:229:03
315.65:249:01
415.65:268:59
515.55:288:57
615.45:298:55
715.45:318:53
815.35:338:51
915.25:358:49
1015.25:378:47
1115.15:398:44
1215.05:418:42
1315.05:428:40
1414.95:448:38
1514.85:468:35
1614.85:488:33
1714.75:508:31
1814.65:528:28
1914.55:548:26
2014.55:568:24
2114.45:588:21
2214.36:008:19
2314.26:018:16
2414.26:038:14
2514.16:058:11
2614.06:078:09
2714.06:098:06
2813.96:118:04
2913.86:138:01
3013.76:157:59
3113.76:177:56

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.43 kWh/m².

For context, solar energy here swings from a low near 0.52 kWh/m² to a high of 6 kWh/m² in June across the year — August's 4.43 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.0Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.6Bright
144.5Bright
154.5Bright
164.5Bright
174.4Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.1Bright
234.0Bright
244.0Bright
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
313.6Moderate
Planning a trip in August

Is August a good time to visit Omsk?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.5
Sightseeing
3rd-best month of the year
4.6
Beach & pool
3rd-best month of the year

August is a reasonable time to visit Omsk for sightseeing.

What to pack for Omsk in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Omsk sees daytime highs around 22°C and nights near 11°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

UV index in Omsk in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Omsk peaks around June 23 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 22 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Dec 22UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5High
Jun6High
Jul6High
Aug4Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low

Air quality in Omsk in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Omsk is worst in April — around 16 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodGoodApr 1515 µg/m³Dec 216 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb8Good
Mar11Good
Apr16Moderate
May10Good
Jun9Good
Jul14Moderate
Aug9Good
Sep7Good
Oct8Good
Nov8Good
Dec6Good
Location & terrain

Where is Omsk?

Omsk sits at 55.0°N, 73.4°E, 90 m above sea level, in Russia. The nearest listed city is Kalachinsk, 77 km away.

Topography around Omsk

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Omsk.

Within 3 km, the terrain around Omsk has only modest variations in elevation — a maximum elevation change of 57 m around an average of 91 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 81 m; within 80 km, only modest variations in elevation — a maximum elevation change of 93 m.

The land around Omsk is covered by artificial surfaces (63%) and trees (21%) within 3 km, trees (26%), artificial surfaces (25%) and cropland (24%) within 16 km, and cropland (53%) and grassland (27%) within 80 km.

3 km
57 m
16 km
81 m
80 km
93 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Kalachinsk 77 km · Isil’kul’ 134 km · Tatarsk 168 km · Tara 221 km · Kupino 263 km · Petropavl 270 km · Ishim 274 km · Shchuchinsk 309 km

Russia travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$17,547
2025
Happiness
5.8 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
6.8
per 100k, 2021
Road deaths
12
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 521
Religion
other Christian 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Omsk (54.9924°, 73.3686°, elevation 90 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).