Altai weather in August

In August, Altai sees average daytime highs of 20°C and overnight lows near 9°C, with 42 mm of precipitation across 7.6 wet days and about 14 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 18°C by the end. The sky is clear or mostly clear about 46% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Altai's 8th-clearest and 6th-windiest month. For the whole year in context, see Altai's year-round climate.

Daytime high: 20°; 3rd warmest
Overnight low: 9°; 11th coldest
Precipitation: 42 mm; 7.6 wet days
Daylight: 14 hours; 5:39 AM – 7:39 PM
Cloud cover: 47%; 8th clearest
Wind: 9 km/h; 6th windiest
Solar energy: 5.94 kWh/m²
Travel score: 6.8; out of 10

Altai is Capital city of Govi-Altai Province, Mongolia.

Density: 8/km²; people per km²

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

← July Altai year-round climate September →Best places to visit in August

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 18°C by the end.

A typical August day in Altai reaches about 20°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 25°C. Set against its neighbours, August runs about 2°C cooler than July and about 6°C warmer than September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	21	21	21	21	21	21	21	21	20	20	20	20	20	20	20	20	20	20	20	19	19	19	19	19	19	19	18	18	18	18	18
Avg low (°C)	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	8	8	8	8	8	7	7	7

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	21	11
6	21	11
7	21	11
8	21	11
9	20	10
10	20	10
11	20	10
12	20	10
13	20	10
14	20	10
15	20	10
16	20	9
17	20	9
18	20	9
19	20	9
20	19	9
21	19	9
22	19	9
23	19	9
24	19	8
25	19	8
26	19	8
27	18	8
28	18	8
29	18	7
30	18	7
31	18	7

How August really feels in Altai

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Altai 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.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-12° / -20°	1	0.2	0.6	8.8	0.0
Feb	-8° / -18°	2	0.8	1.5	10	0.0
Mar	-1° / -11°	9	2.8	3.5	11.6	0.0
Apr	8° / -3°	17	5.2	3.7	13.3	1.4
May	14° / 3°	25	6.7	2.6	14.7	4.6
Jun	20° / 9°	44	8.6	0.3	15.5	6.4
Jul	22° / 12°	56	9.4	0	15.2	6.7
Aug	20° / 9°	42	7.6	0.2	14	6.8
Sep	14° / 3°	18	4.9	1.5	12.4	4.8
Oct	6° / -5°	11	3.7	3.7	10.7	0.8
Nov	-4° / -13°	5	1.8	2.1	9.2	0.0
Dec	-10° / -18°	2	0.6	1	8.5	0.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 34%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	60	61	61	62	62	62	64	64	64	64	65	66	66	66	67	67	67	67	67	67	67	67	67	69	69	69	69	69	69	69	69
Cloudier (%)	40	39	39	38	38	38	36	36	36	36	35	34	34	34	33	33	33	33	33	33	33	33	33	31	31	31	31	31	31	31	31

	Clearer (%)	Cloudier (%)
1	60	40
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	64	36
8	64	36
9	64	36
10	64	36
11	65	35
12	66	34
13	66	34
14	66	34
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	67	33
23	67	33
24	69	31
25	69	31
26	69	31
27	69	31
28	69	31
29	69	31
30	69	31
31	69	31

Chance of precipitation in August

Any precipitation

Altai gets around 42 mm of rain and snow over 7.6 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 24% and peaks near 28% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	27	27	27	28	28	28	28	27	27	27	26	26	25	25	24	23	23	22	22	22	21	21	22	22	22	22	22	22	22	22	22

	Rain chance (%)
1	27
2	27
3	27
4	28
5	28
6	28
7	28
8	27
9	27
10	27
11	26
12	26
13	25
14	25
15	24
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	22
24	22
25	22
26	22
27	22
28	22
29	22
30	22
31	22

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	98	98	98	98	98	98	99	99	99	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	2	2	2	2	2	2	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	98	2
5	98	2
6	98	2
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

Wind in August

Winds average 9 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	9	calm
2	9	calm
3	9	calm
4	9	calm
5	9	calm
6	9	calm
7	9	calm
8	9	calm
9	9	calm
10	9	calm
11	9	calm
12	9	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	9	calm
22	9	calm
23	9	calm
24	9	calm
25	9	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	10	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over August. Sunrise moves from 5:20 AM to 5:59 AM, and sunset from 8:02 PM to 7:11 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	14.7	14.7	14.6	14.6	14.5	14.5	14.4	14.4	14.3	14.3	14.2	14.2	14.1	14.1	14.0	14.0	13.9	13.9	13.8	13.8	13.7	13.7	13.6	13.6	13.5	13.5	13.4	13.4	13.3	13.3	13.2
Sunrise (AM)	5:20	5:21	5:23	5:24	5:25	5:26	5:28	5:29	5:30	5:31	5:33	5:34	5:35	5:36	5:38	5:39	5:40	5:42	5:43	5:44	5:46	5:47	5:48	5:49	5:51	5:52	5:53	5:55	5:56	5:57	5:59
Sunset (PM)	8:02	8:01	7:59	7:58	7:56	7:55	7:53	7:52	7:50	7:49	7:47	7:46	7:44	7:42	7:41	7:39	7:37	7:36	7:34	7:32	7:30	7:28	7:27	7:25	7:23	7:21	7:19	7:17	7:15	7:13	7:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.7	5:20	8:02
2	14.7	5:21	8:01
3	14.6	5:23	7:59
4	14.6	5:24	7:58
5	14.5	5:25	7:56
6	14.5	5:26	7:55
7	14.4	5:28	7:53
8	14.4	5:29	7:52
9	14.3	5:30	7:50
10	14.3	5:31	7:49
11	14.2	5:33	7:47
12	14.2	5:34	7:46
13	14.1	5:35	7:44
14	14.1	5:36	7:42
15	14.0	5:38	7:41
16	14.0	5:39	7:39
17	13.9	5:40	7:37
18	13.9	5:42	7:36
19	13.8	5:43	7:34
20	13.8	5:44	7:32
21	13.7	5:46	7:30
22	13.7	5:47	7:28
23	13.6	5:48	7:27
24	13.6	5:49	7:25
25	13.5	5:51	7:23
26	13.5	5:52	7:21
27	13.4	5:53	7:19
28	13.4	5:55	7:17
29	13.3	5:56	7:15
30	13.3	5:57	7:13
31	13.2	5:59	7:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.94 kWh/m².

For context, solar energy here swings from a low near 1.76 kWh/m² to a high of 7 kWh/m² in May across the year — August's 5.94 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	6.3	6.2	6.2	6.2	6.2	6.2	6.1	6.1	6.1	6.1	6.1	6.1	6.0	6.0	6.0	6.0	6.0	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.7	5.7	5.7	5.6	5.6	5.5	5.5
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	6.3	Intense
2	6.2	Intense
3	6.2	Intense
4	6.2	Intense
5	6.2	Intense
6	6.2	Intense
7	6.1	Intense
8	6.1	Intense
9	6.1	Intense
10	6.1	Intense
11	6.1	Intense
12	6.1	Intense
13	6.0	Intense
14	6.0	Intense
15	6.0	Intense
16	6.0	Bright
17	6.0	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	5.9	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.7	Bright
26	5.7	Bright
27	5.7	Bright
28	5.6	Bright
29	5.6	Bright
30	5.5	Bright
31	5.5	Bright

Planning a trip in August

Is August a good time to visit Altai?

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

6.8

Sightseeing

1st-best month of the year

3.3

Beach & pool

2nd-best month of the year

August is a reasonable time to visit Altai for sightseeing.

What to pack for Altai in August

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

In August, Altai sees daytime highs around 20°C and nights near 9°C. Worth packing: sun protection. About 8 days see rain.

sun protection

UV index in Altai 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 Altai peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	6	8	8	10	8	5	3	1	1
Level	Low	Moderate	Moderate	High	Very high	Very high	Very high	Very high	High	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Moderate
Mar	3	Moderate
Apr	6	High
May	8	Very high
Jun	8	Very high
Jul	10	Very high
Aug	8	Very high
Sep	5	High
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Air quality in Altai 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 Altai is worst in June — around 22 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (December, 5 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	10	13	15	13	18	22	14	18	9	8	8	5
Level	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	10	Good
Feb	13	Moderate
Mar	15	Moderate
Apr	13	Moderate
May	18	Moderate
Jun	22	Moderate
Jul	14	Moderate
Aug	18	Moderate
Sep	9	Good
Oct	8	Good
Nov	8	Good
Dec	5	Good

Location & terrain

Where is Altai?

Altai sits at 46.4°N, 96.3°E, 2,156 m above sea level, in Mongolia. The nearest listed city is Uliastay, 159 km away.

Topography around Altai

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

Within 3 km, the terrain around Altai has only modest variations in elevation — a maximum elevation change of 147 m around an average of 2,168 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,074 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,683 m.

The land around Altai is covered by bare terrain (51%) and grassland (39%) within 3 km, grassland (67%) and bare terrain (32%) within 16 km, and bare terrain (54%) and grassland (46%) within 80 km.

3 km

147 m

bare terrain 51%

16 km

1,074 m

grassland 67%

80 km

2,683 m

bare terrain 54%

treesgrasslandartificial surfacesbare terrain

← July Altai year-round climate September →Best places to visit in August

August weather nearby: Uliastay 159 km · Bayanhongor 343 km · Khovd 393 km · Tsetserleg 413 km · Mörön 465 km · Bogd 498 km · Arvayheer 500 km · Ulaangom 507 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

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 Altai (46.3722°, 96.2583°, elevation 2,156 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).

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	21	11
6	21	11
7	21	11
8	21	11
9	20	10
10	20	10
11	20	10
12	20	10
13	20	10
14	20	10
15	20	10
16	20	9
17	20	9
18	20	9
19	20	9
20	19	9
21	19	9
22	19	9
23	19	9
24	19	8
25	19	8
26	19	8
27	18	8
28	18	8
29	18	7
30	18	7
31	18	7

	Clearer (%)	Cloudier (%)
1	60	40
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	64	36
8	64	36
9	64	36
10	64	36
11	65	35
12	66	34
13	66	34
14	66	34
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	67	33
23	67	33
24	69	31
25	69	31
26	69	31
27	69	31
28	69	31
29	69	31
30	69	31
31	69	31

	Rain chance (%)
1	27
2	27
3	27
4	28
5	28
6	28
7	28
8	27
9	27
10	27
11	26
12	26
13	25
14	25
15	24
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	22
24	22
25	22
26	22
27	22
28	22
29	22
30	22
31	22

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	98	2
5	98	2
6	98	2
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	21	11
6	21	11
7	21	11
8	21	11
9	20	10
10	20	10
11	20	10
12	20	10
13	20	10
14	20	10
15	20	10
16	20	9
17	20	9
18	20	9
19	20	9
20	19	9
21	19	9
22	19	9
23	19	9
24	19	8
25	19	8
26	19	8
27	18	8
28	18	8
29	18	7
30	18	7
31	18	7

	Clearer (%)	Cloudier (%)
1	60	40
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	64	36
8	64	36
9	64	36
10	64	36
11	65	35
12	66	34
13	66	34
14	66	34
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	67	33
23	67	33
24	69	31
25	69	31
26	69	31
27	69	31
28	69	31
29	69	31
30	69	31
31	69	31

	Rain chance (%)
1	27
2	27
3	27
4	28
5	28
6	28
7	28
8	27
9	27
10	27
11	26
12	26
13	25
14	25
15	24
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	22
24	22
25	22
26	22
27	22
28	22
29	22
30	22
31	22

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	98	2
5	98	2
6	98	2
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Avg high (°C)	Avg low (°C)
1	21	11
2	21	11
3	21	11
4	21	11
5	21	11
6	21	11
7	21	11
8	21	11
9	20	10
10	20	10
11	20	10
12	20	10
13	20	10
14	20	10
15	20	10
16	20	9
17	20	9
18	20	9
19	20	9
20	19	9
21	19	9
22	19	9
23	19	9
24	19	8
25	19	8
26	19	8
27	18	8
28	18	8
29	18	7
30	18	7
31	18	7

	Clearer (%)	Cloudier (%)
1	60	40
2	61	39
3	61	39
4	62	38
5	62	38
6	62	38
7	64	36
8	64	36
9	64	36
10	64	36
11	65	35
12	66	34
13	66	34
14	66	34
15	67	33
16	67	33
17	67	33
18	67	33
19	67	33
20	67	33
21	67	33
22	67	33
23	67	33
24	69	31
25	69	31
26	69	31
27	69	31
28	69	31
29	69	31
30	69	31
31	69	31

	Rain chance (%)
1	27
2	27
3	27
4	28
5	28
6	28
7	28
8	27
9	27
10	27
11	26
12	26
13	25
14	25
15	24
16	23
17	23
18	22
19	22
20	22
21	21
22	21
23	22
24	22
25	22
26	22
27	22
28	22
29	22
30	22
31	22

	Dry (%)	Comfortable (%)
1	98	2
2	98	2
3	98	2
4	98	2
5	98	2
6	98	2
7	99	1
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0