Ölgii weather in May

In May, Ölgii sees average daytime highs of 13°C and overnight lows near 2°C, with 24 mm of precipitation across 5.2 wet days and about 15 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 11°C in the first days to 16°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 18 min at the start of May to 15 h 36 min by month's end. Set against the rest of the year, May is Ölgii's 10th-clearest and 1st-windiest month. For the whole year in context, see Ölgii's year-round climate.

Daytime high: 13°; 4th warmest
Overnight low: 2°; 9th coldest
Precipitation: 24 mm; 5.2 wet days
Daylight: 15 h 06 min; 5:25 AM – 8:28 PM
Cloud cover: 54%; 10th clearest
Wind: 11 km/h; 1st windiest
Solar energy: 7.04 kWh/m²
Travel score: 4.3; 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.

← April Ölgii year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 11°C in the first days to 16°C by the end.

A typical May day in Ölgii reaches about 13°C in the afternoon and slips back to 2°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 20°C. Set against its neighbours, May runs about 7°C warmer than April and about 5°C cooler than June.

	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)	11	11	11	11	11	12	12	12	12	12	13	13	13	13	13	13	14	14	14	14	14	15	15	15	15	15	15	16	16	16	16
Avg low (°C)	-1	-1	0	0	0	0	0	0	1	1	1	1	2	2	2	2	2	3	3	3	3	3	3	4	4	4	4	4	5	5	5

	Avg high (°C)	Avg low (°C)
1	11	-1
2	11	-1
3	11	0
4	11	0
5	11	0
6	12	0
7	12	0
8	12	0
9	12	1
10	12	1
11	13	1
12	13	1
13	13	2
14	13	2
15	13	2
16	13	2
17	14	2
18	14	3
19	14	3
20	14	3
21	14	3
22	15	3
23	15	3
24	15	4
25	15	4
26	15	4
27	15	4
28	16	4
29	16	5
30	16	5
31	16	5

How May really feels in Ölgii

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 20 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

The story in May is cold — wind chill drags the overnight "feels like" below the raw low.

Ölgii weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-16° / -28°	0	0.1	0.2	8.5	0.0
Feb	-11° / -24°	1	0.5	0.6	9.8	0.0
Mar	-3° / -16°	6	1.7	2.1	11.6	0.0
Apr	7° / -5°	12	3.6	2.7	13.4	1.1
May	13° / 2°	24	5.2	2.2	15	4.3
Jun	19° / 8°	37	8.3	0.5	15.9	6.2
Jul	21° / 10°	46	9.7	0	15.6	6.5
Aug	19° / 7°	33	7.1	0.1	14.2	6.6
Sep	13° / 1°	12	3.5	1.2	12.4	4.1
Oct	4° / -8°	5	1.8	1.6	10.5	0.4
Nov	-7° / -18°	3	1	1.3	8.9	0.0
Dec	-15° / -25°	1	0.2	0.4	8.1	0.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 21% of May, with mostly cloudy or overcast conditions the remaining 46%.

	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 (%)	58	58	57	57	58	58	57	57	57	56	55	55	54	54	54	53	53	53	52	52	52	52	51	51	51	51	51	51	51	51	51
Cloudier (%)	42	42	43	43	42	42	43	43	43	44	45	45	46	46	46	47	47	47	48	48	48	48	49	49	49	49	49	49	49	49	49

	Clearer (%)	Cloudier (%)
1	58	42
2	58	42
3	57	43
4	57	43
5	58	42
6	58	42
7	57	43
8	57	43
9	57	43
10	56	44
11	55	45
12	55	45
13	54	46
14	54	46
15	54	46
16	53	47
17	53	47
18	53	47
19	52	48
20	52	48
21	52	48
22	52	48
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

Chance of precipitation in May

Any precipitationSnow

Ölgii gets around 24 mm of rain and snow over 5.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 17% and peaks near 18% on the wettest days, and about 2 days bring 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 (%)	13	13	14	14	14	15	15	16	16	16	17	17	17	18	18	18	18	18	18	18	18	18	18	18	17	17	18	18	18	18	18
Snow chance (%)	7	7	7	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7	7	6	6	6	6	6	6	6	5	5

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

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

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

Wind in May

Winds average 11 km/h in May, the windiest month of the year.

Across May, daily wind ranges from about 10 km/h on the calmest days to 12 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)	12	12	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	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	12	calm
2	12	calm
3	12	calm
4	12	calm
5	12	calm
6	12	calm
7	12	calm
8	12	calm
9	12	calm
10	12	calm
11	12	calm
12	11	calm
13	11	calm
14	11	calm
15	11	calm
16	11	calm
17	11	calm
18	11	calm
19	11	calm
20	11	calm
21	11	calm
22	11	calm
23	11	calm
24	11	calm
25	11	calm
26	11	calm
27	11	calm
28	11	calm
29	11	calm
30	10	calm
31	10	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 18 min at the start of May to 15 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over May. Sunrise moves from 5:48 AM to 5:09 AM, and sunset from 8:07 PM to 8:46 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)	14.3	14.4	14.4	14.5	14.5	14.6	14.6	14.7	14.7	14.8	14.8	14.9	14.9	15.0	15.0	15.1	15.1	15.1	15.2	15.2	15.3	15.3	15.4	15.4	15.4	15.5	15.5	15.5	15.6	15.6	15.6
Sunrise (AM)	5:48	5:46	5:45	5:43	5:41	5:40	5:38	5:36	5:35	5:33	5:32	5:30	5:29	5:27	5:26	5:25	5:23	5:22	5:21	5:20	5:18	5:17	5:16	5:15	5:14	5:13	5:12	5:11	5:10	5:09	5:09
Sunset (PM)	8:07	8:08	8:09	8:11	8:12	8:14	8:15	8:17	8:18	8:20	8:21	8:23	8:24	8:25	8:27	8:28	8:29	8:31	8:32	8:33	8:35	8:36	8:37	8:38	8:40	8:41	8:42	8:43	8:44	8:45	8:46

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.3	5:48	8:07
2	14.4	5:46	8:08
3	14.4	5:45	8:09
4	14.5	5:43	8:11
5	14.5	5:41	8:12
6	14.6	5:40	8:14
7	14.6	5:38	8:15
8	14.7	5:36	8:17
9	14.7	5:35	8:18
10	14.8	5:33	8:20
11	14.8	5:32	8:21
12	14.9	5:30	8:23
13	14.9	5:29	8:24
14	15.0	5:27	8:25
15	15.0	5:26	8:27
16	15.1	5:25	8:28
17	15.1	5:23	8:29
18	15.1	5:22	8:31
19	15.2	5:21	8:32
20	15.2	5:20	8:33
21	15.3	5:18	8:35
22	15.3	5:17	8:36
23	15.4	5:16	8:37
24	15.4	5:15	8:38
25	15.4	5:14	8:40
26	15.5	5:13	8:41
27	15.5	5:12	8:42
28	15.5	5:11	8:43
29	15.6	5:10	8:44
30	15.6	5:09	8:45
31	15.6	5:09	8:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.04 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 — May's 7.04 kWh/m² sits near the top of that range.

	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)	6.7	6.8	6.8	6.8	6.8	6.9	6.9	6.9	7.0	7.0	7.0	7.0	7.0	7.0	7.0	7.0	7.0	7.1	7.1	7.1	7.1	7.1	7.1	7.1	7.2	7.2	7.2	7.2	7.2	7.2	7.2
Level	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense	Intense

	Solar energy (kWh/m²)	Level
1	6.7	Intense
2	6.8	Intense
3	6.8	Intense
4	6.8	Intense
5	6.8	Intense
6	6.9	Intense
7	6.9	Intense
8	6.9	Intense
9	7.0	Intense
10	7.0	Intense
11	7.0	Intense
12	7.0	Intense
13	7.0	Intense
14	7.0	Intense
15	7.0	Intense
16	7.0	Intense
17	7.0	Intense
18	7.1	Intense
19	7.1	Intense
20	7.1	Intense
21	7.1	Intense
22	7.1	Intense
23	7.1	Intense
24	7.1	Intense
25	7.2	Intense
26	7.2	Intense
27	7.2	Intense
28	7.2	Intense
29	7.2	Intense
30	7.2	Intense
31	7.2	Intense

Planning a trip in May

Is May a good time to visit Ölgii?

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

4.3

Sightseeing

4th-best month of the year

0.2

Beach & pool

4th-best month of the year

May is a reasonable time to visit Ölgii for sightseeing.

What to pack for Ölgii in May

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

In May, Ölgii sees daytime highs around 13°C and nights near 2°C. Pack sun protection. Worth having: a warm layer. About 5 days see rain.

sun protectiona warm layer

UV index in Ölgii in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	6	9	8	9	8	5	3	1	1
Level	Low	Low	Moderate	High	Very high	Very high	Very high	Very high	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	6	High
May	9	Very high
Jun	8	Very high
Jul	9	Very high
Aug	8	Very high
Sep	5	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

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.

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

bare terrain 53%

16 km

1,132 m

grassland 75%

80 km

2,848 m

grassland 65%

grasslandartificial surfacesbare terrainwaterwetlandmoss and lichen

← April Ölgii year-round climate June →Best places to visit in May

May 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

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).

	Avg high (°C)	Avg low (°C)
1	11	-1
2	11	-1
3	11	0
4	11	0
5	11	0
6	12	0
7	12	0
8	12	0
9	12	1
10	12	1
11	13	1
12	13	1
13	13	2
14	13	2
15	13	2
16	13	2
17	14	2
18	14	3
19	14	3
20	14	3
21	14	3
22	15	3
23	15	3
24	15	4
25	15	4
26	15	4
27	15	4
28	16	4
29	16	5
30	16	5
31	16	5

	Clearer (%)	Cloudier (%)
1	58	42
2	58	42
3	57	43
4	57	43
5	58	42
6	58	42
7	57	43
8	57	43
9	57	43
10	56	44
11	55	45
12	55	45
13	54	46
14	54	46
15	54	46
16	53	47
17	53	47
18	53	47
19	52	48
20	52	48
21	52	48
22	52	48
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

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

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

	Avg high (°C)	Avg low (°C)
1	11	-1
2	11	-1
3	11	0
4	11	0
5	11	0
6	12	0
7	12	0
8	12	0
9	12	1
10	12	1
11	13	1
12	13	1
13	13	2
14	13	2
15	13	2
16	13	2
17	14	2
18	14	3
19	14	3
20	14	3
21	14	3
22	15	3
23	15	3
24	15	4
25	15	4
26	15	4
27	15	4
28	16	4
29	16	5
30	16	5
31	16	5

	Clearer (%)	Cloudier (%)
1	58	42
2	58	42
3	57	43
4	57	43
5	58	42
6	58	42
7	57	43
8	57	43
9	57	43
10	56	44
11	55	45
12	55	45
13	54	46
14	54	46
15	54	46
16	53	47
17	53	47
18	53	47
19	52	48
20	52	48
21	52	48
22	52	48
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

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

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

	Avg high (°C)	Avg low (°C)
1	11	-1
2	11	-1
3	11	0
4	11	0
5	11	0
6	12	0
7	12	0
8	12	0
9	12	1
10	12	1
11	13	1
12	13	1
13	13	2
14	13	2
15	13	2
16	13	2
17	14	2
18	14	3
19	14	3
20	14	3
21	14	3
22	15	3
23	15	3
24	15	4
25	15	4
26	15	4
27	15	4
28	16	4
29	16	5
30	16	5
31	16	5

	Clearer (%)	Cloudier (%)
1	58	42
2	58	42
3	57	43
4	57	43
5	58	42
6	58	42
7	57	43
8	57	43
9	57	43
10	56	44
11	55	45
12	55	45
13	54	46
14	54	46
15	54	46
16	53	47
17	53	47
18	53	47
19	52	48
20	52	48
21	52	48
22	52	48
23	51	49
24	51	49
25	51	49
26	51	49
27	51	49
28	51	49
29	51	49
30	51	49
31	51	49

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

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