Ölgii weather in August

In August, Ölgii sees average daytime highs of 19°C and overnight lows near 7°C, with 33 mm of precipitation across 7.1 wet days and about 14.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 17°C by the end. The sky is clear or mostly clear about 39% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 hours at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Ölgii's 8th-clearest and 7th-windiest month. For the whole year in context, see Ölgii's year-round climate.

Daytime high
19°
3rd warmest
Overnight low
10th coldest
Precipitation
33 mm
7.1 wet days
Daylight
14 h 12 min
5:58 AM – 8:10 PM
Cloud cover
50%
8th clearest
Wind
8 km/h
7th windiest
Solar energy
5.93 kWh/m²
Travel score
6.6
out of 10

Ölgii is capital-city of the Bayan-Ölgii aimag in Mongolia.

Density
1,893/km²
people per km²
Founded
1940

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 20°C in the first days to 17°C by the end.

A typical August day in Ölgii reaches about 19°C in the afternoon and slips back to 7°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, August runs about 2°C cooler than July and about 6°C warmer than September.

10°20°151015202531
Avg high (°C)Avg low (°C)
1209
2209
3209
4209
5209
6209
7209
8209
9208
10198
11198
12198
13198
14198
15198
16197
17197
18197
19197
20187
21187
22186
23186
24186
25186
26186
27175
28175
29175
30175
31165

How August really feels in Ölgii

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.

Ölgii weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-16° / -28°00.10.28.50.0
Feb-11° / -24°10.50.69.80.0
Mar-3° / -16°61.72.111.60.0
Apr / -5°123.62.713.41.1
May13° / 245.22.2154.3
Jun19° / 378.30.515.96.2
Jul21° / 10°469.7015.66.5
Aug19° / 337.10.114.26.6
Sep13° / 123.51.212.44.1
Oct / -8°51.81.610.50.4
Nov-7° / -18°311.38.90.0
Dec-15° / -25°10.20.48.10.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 24% of August, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35743
45842
55941
65941
76139
86139
96238
106337
116337
126436
136535
146535
156634
166634
176634
186634
196634
206634
216535
226535
236535
246436
256436
266436
276436
286436
296436
306535
316535

Chance of precipitation in August

Any precipitationSnow

Ölgii gets around 33 mm of rain and snow over 7.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 23% and peaks near 30% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1300
2290
3290
4280
5280
6270
7270
8260
9260
10250
11250
12240
13240
14230
15230
16220
17220
18211
19211
20201
21201
22191
23191
24191
25181
26181
27181
28172
29172
30172
31162

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 hours at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over August. Sunrise moves from 5:37 AM to 6:20 AM, and sunset from 8:35 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.05:378:35
214.95:398:34
314.95:408:32
414.85:418:31
514.85:438:29
614.75:448:28
714.75:468:26
814.65:478:24
914.65:488:23
1014.55:508:21
1114.55:518:19
1214.45:538:17
1314.45:548:16
1414.35:558:14
1514.35:578:12
1614.25:588:10
1714.16:008:08
1814.16:018:06
1914.06:038:04
2014.06:048:03
2113.96:068:01
2213.96:077:59
2313.86:097:57
2413.76:107:55
2513.76:117:53
2613.66:137:51
2713.66:147:48
2813.56:167:46
2913.46:177:44
3013.46:197:42
3113.36:207:40

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.93 kWh/m².

For context, solar energy here swings from a low near 1.43 kWh/m² to a high of 7.1 kWh/m² in June across the year — August's 5.93 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.0Intense
146.0Intense
156.0Intense
166.0Bright
176.0Bright
185.9Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in August

Is August a good time to visit Ölgii?

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

6.6
Sightseeing
1st-best month of the year
2.6
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Ölgii for sightseeing.

What to pack for Ölgii in August

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

In August, Ölgii sees daytime highs around 19°C and nights near 7°C. Worth packing: a warm layer and sun protection. About 7 days see rain.

a warm layersun protection

UV index in Ölgii in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ölgii peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highModerateLowJul 17UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May9Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Ölgii?

Ölgii sits at 49.0°N, 90.0°E, 1,715 m above sea level, in Mongolia. The nearest listed city is Khovd, 164 km away.

KhovdUlaangomAbazaGorno-AltayskKyzylMayma

Topography around Ölgii

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

Within 3 km, the terrain around Ölgii has significant variations in elevation — a maximum elevation change of 304 m around an average of 1,734 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,132 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,848 m.

The land around Ölgii is covered by bare terrain (53%) and grassland (30%) within 3 km, grassland (75%) and bare terrain (23%) within 16 km, and grassland (65%) and bare terrain (25%) within 80 km.

3 km
304 m
16 km
1,132 m
80 km
2,848 m
grasslandartificial surfacesbare terrainwaterwetlandmoss and lichen
August weather nearby: Khovd 164 km · Ulaangom 189 km · Abaza 410 km · Zaysan 412 km · Altay 422 km · Gorno-Altaysk 439 km · Kyzyl 440 km · Mayma 443 km

Mongolia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / E / F
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$7,108
2025
Happiness
5.9 / 10
World Happiness, 2025
Safe drinking water
43%
of population, 2024
Homicide rate
5.9
per 100k, 2023
Road deaths
21
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 447
Religion
Buddhist 52%no religion 41%Muslim 3%Shaman 3%

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 Ölgii (48.9683°, 89.9625°, elevation 1,715 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).