Bayanhongor weather in May

In May, Bayanhongor sees average daytime highs of 14°C and overnight lows near 1°C, with 24 mm of precipitation across 5.2 wet days and about 14.7 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 17°C by the end. The sky is clear or mostly clear about 32% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 18 min by month's end. Set against the rest of the year, May is Bayanhongor's 10th-clearest and 1st-windiest month. For the whole year in context, see Bayanhongor's year-round climate.

Daytime high: 14°; 4th warmest
Overnight low: 1°; 8th coldest
Precipitation: 24 mm; 5.2 wet days
Daylight: 14 h 48 min; 5:51 AM – 8:36 PM
Cloud cover: 55%; 10th clearest
Wind: 12 km/h; 1st windiest
Solar energy: 6.94 kWh/m²
Travel score: 4.7; out of 10

Bayanhongor is city in Bayankhongor Province, Mongolia.

Density: 483/km²; people per km²

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

← April Bayanhongor 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 12°C in the first days to 17°C by the end.

A typical May day in Bayanhongor reaches about 14°C in the afternoon and slips back to 1°C overnight — a 13°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 6°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	12	12	12	12	12	12	13	13	13	13	13	14	14	14	14	14	15	15	15	15	16	16	16	16	16	17	17	17	17	17
Avg low (°C)	-2	-1	-1	-1	-1	-1	-1	0	0	0	0	0	0	1	1	1	1	1	1	2	2	2	2	2	3	3	3	3	3	4	4

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

How May really feels in Bayanhongor

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 27 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.

Bayanhongor 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	-13° / -25°	1	0.4	0.8	8.8	0.0
Feb	-9° / -22°	3	1	1.4	10	0.0
Mar	-1° / -14°	7	1.8	2.5	11.6	0.0
Apr	8° / -5°	14	3.5	2.8	13.3	1.4
May	14° / 1°	24	5.2	2.1	14.7	4.7
Jun	20° / 7°	39	8.2	0.3	15.5	6.4
Jul	21° / 10°	62	10.8	0	15.2	6.4
Aug	20° / 8°	44	7.9	0	14	6.7
Sep	14° / 1°	20	4	1.1	12.3	4.8
Oct	6° / -7°	9	2.2	2.1	10.7	0.8
Nov	-4° / -16°	3	0.9	1.5	9.2	0.0
Dec	-11° / -22°	2	0.6	0.9	8.5	0.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 24% of May, with mostly cloudy or overcast conditions the remaining 44%.

	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 (%)	53	53	53	53	53	53	53	53	53	53	53	53	54	54	54	56	56	56	58	58	58	58	58	59	59	59	58	59	59	58	58
Cloudier (%)	47	47	47	47	47	47	47	47	47	47	47	47	46	46	46	44	44	44	42	42	42	42	42	41	41	41	42	41	41	42	42

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	53	47
4	53	47
5	53	47
6	53	47
7	53	47
8	53	47
9	53	47
10	53	47
11	53	47
12	53	47
13	54	46
14	54	46
15	54	46
16	56	44
17	56	44
18	56	44
19	58	42
20	58	42
21	58	42
22	58	42
23	58	42
24	59	41
25	59	41
26	59	41
27	58	42
28	59	41
29	59	41
30	58	42
31	58	42

Chance of precipitation in May

Any precipitationSnow

Bayanhongor 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 19% 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 (%)	14	15	15	16	17	17	18	18	18	18	19	18	18	18	18	18	17	17	17	16	16	16	16	16	16	16	16	17	17	18	18
Snow chance (%)	8	8	8	8	8	8	8	8	8	9	8	8	8	8	8	7	7	7	6	6	6	6	5	5	5	5	4	4	4	4	3

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

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 12 km/h in May, the windiest month of the year.

Across May, daily wind ranges from about 11 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	12	12	12	12	12	12	12	12	12	11	11	11	11	11	11	11	11	11	11	11
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	12	calm
13	12	calm
14	12	calm
15	12	calm
16	12	calm
17	12	calm
18	12	calm
19	12	calm
20	12	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	11	calm
31	11	calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 6:12 AM to 5:36 AM, and sunset from 8:17 PM to 8:53 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)	14.1	14.1	14.2	14.2	14.3	14.3	14.4	14.4	14.5	14.5	14.5	14.6	14.6	14.7	14.7	14.8	14.8	14.8	14.9	14.9	15.0	15.0	15.0	15.1	15.1	15.1	15.2	15.2	15.2	15.2	15.3
Sunrise (AM)	6:12	6:10	6:09	6:07	6:06	6:04	6:03	6:01	6:00	5:58	5:57	5:56	5:54	5:53	5:52	5:51	5:49	5:48	5:47	5:46	5:45	5:44	5:43	5:42	5:41	5:40	5:39	5:39	5:38	5:37	5:36
Sunset (PM)	8:17	8:18	8:20	8:21	8:22	8:23	8:25	8:26	8:27	8:29	8:30	8:31	8:32	8:34	8:35	8:36	8:37	8:39	8:40	8:41	8:42	8:43	8:44	8:45	8:47	8:48	8:49	8:50	8:51	8:52	8:53

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.1	6:12	8:17
2	14.1	6:10	8:18
3	14.2	6:09	8:20
4	14.2	6:07	8:21
5	14.3	6:06	8:22
6	14.3	6:04	8:23
7	14.4	6:03	8:25
8	14.4	6:01	8:26
9	14.5	6:00	8:27
10	14.5	5:58	8:29
11	14.5	5:57	8:30
12	14.6	5:56	8:31
13	14.6	5:54	8:32
14	14.7	5:53	8:34
15	14.7	5:52	8:35
16	14.8	5:51	8:36
17	14.8	5:49	8:37
18	14.8	5:48	8:39
19	14.9	5:47	8:40
20	14.9	5:46	8:41
21	15.0	5:45	8:42
22	15.0	5:44	8:43
23	15.0	5:43	8:44
24	15.1	5:42	8:45
25	15.1	5:41	8:47
26	15.1	5:40	8:48
27	15.2	5:39	8:49
28	15.2	5:39	8:50
29	15.2	5:38	8:51
30	15.2	5:37	8:52
31	15.3	5:36	8:53

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.94 kWh/m².

For context, solar energy here swings from a low near 1.78 kWh/m² to a high of 6.96 kWh/m² in June across the year — May's 6.94 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)	6.6	6.6	6.6	6.6	6.7	6.7	6.7	6.7	6.8	6.8	6.8	6.8	6.9	6.9	6.9	6.9	7.0	7.0	7.0	7.0	7.1	7.1	7.1	7.1	7.1	7.1	7.1	7.1	7.1	7.1	7.1
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	6.6	Intense
2	6.6	Intense
3	6.6	Intense
4	6.6	Intense
5	6.7	Intense
6	6.7	Intense
7	6.7	Intense
8	6.7	Intense
9	6.8	Intense
10	6.8	Intense
11	6.8	Intense
12	6.8	Intense
13	6.9	Intense
14	6.9	Intense
15	6.9	Intense
16	6.9	Intense
17	7.0	Intense
18	7.0	Intense
19	7.0	Intense
20	7.0	Intense
21	7.1	Intense
22	7.1	Intense
23	7.1	Intense
24	7.1	Intense
25	7.1	Intense
26	7.1	Intense
27	7.1	Intense
28	7.1	Intense
29	7.1	Intense
30	7.1	Intense
31	7.1	Intense

Planning a trip in May

Is May a good time to visit Bayanhongor?

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

4.7

Sightseeing

5th-best month of the year

0.4

Beach & pool

4th-best month of the year

May is a reasonable time to visit Bayanhongor for sightseeing.

What to pack for Bayanhongor in May

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

In May, Bayanhongor sees daytime highs around 14°C and nights near 1°C. Pack sun protection. Worth having: a warm layer. About 5 days see rain.

sun protectiona warm layer

UV index in Bayanhongor in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bayanhongor peaks around July 19 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	7	7	9	8	6	3	2	1
Level	Low	Moderate	Moderate	High	Very high	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	7	Very high
Jun	7	High
Jul	9	Very high
Aug	8	Very high
Sep	6	High
Oct	3	Moderate
Nov	2	Low
Dec	1	Low

Air quality in Bayanhongor in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Bayanhongor is worst in June — around 18 µg/m³ PM2.5 (moderate), about 6.1× the cleanest month (December, 3 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)	6	8	14	14	18	18	16	17	12	9	8	3
Level	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	6	Good
Feb	8	Good
Mar	14	Moderate
Apr	14	Moderate
May	18	Moderate
Jun	18	Moderate
Jul	16	Moderate
Aug	17	Moderate
Sep	12	Good
Oct	9	Good
Nov	8	Good
Dec	3	Good

Location & terrain

Where is Bayanhongor?

Bayanhongor sits at 46.2°N, 100.7°E, 1,873 m above sea level, in Mongolia. The nearest listed city is Tsetserleg, 153 km away.

Topography around Bayanhongor

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

Within 3 km, the terrain around Bayanhongor has significant variations in elevation — a maximum elevation change of 277 m around an average of 1,905 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 742 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,165 m.

The land around Bayanhongor is covered by grassland (53%) and bare terrain (35%) within 3 km, grassland (83%) within 16 km, and grassland (76%) and bare terrain (23%) within 80 km.

3 km

277 m

grassland 53%

16 km

742 m

grassland 83%

80 km

2,165 m

grassland 76%

treesshrubsgrasslandartificial surfacesbare terrain

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

May weather nearby: Tsetserleg 153 km · Arvayheer 158 km · Bogd 204 km · Hovd 214 km · Uliastay 341 km · Altai 343 km · Bulgan 360 km · Mörön 385 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 Bayanhongor (46.1944°, 100.7181°, elevation 1,873 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	11	-2
2	12	-1
3	12	-1
4	12	-1
5	12	-1
6	12	-1
7	12	-1
8	13	0
9	13	0
10	13	0
11	13	0
12	13	0
13	14	0
14	14	1
15	14	1
16	14	1
17	14	1
18	15	1
19	15	1
20	15	2
21	15	2
22	16	2
23	16	2
24	16	2
25	16	3
26	16	3
27	17	3
28	17	3
29	17	3
30	17	4
31	17	4

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	53	47
4	53	47
5	53	47
6	53	47
7	53	47
8	53	47
9	53	47
10	53	47
11	53	47
12	53	47
13	54	46
14	54	46
15	54	46
16	56	44
17	56	44
18	56	44
19	58	42
20	58	42
21	58	42
22	58	42
23	58	42
24	59	41
25	59	41
26	59	41
27	58	42
28	59	41
29	59	41
30	58	42
31	58	42

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

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

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	53	47
4	53	47
5	53	47
6	53	47
7	53	47
8	53	47
9	53	47
10	53	47
11	53	47
12	53	47
13	54	46
14	54	46
15	54	46
16	56	44
17	56	44
18	56	44
19	58	42
20	58	42
21	58	42
22	58	42
23	58	42
24	59	41
25	59	41
26	59	41
27	58	42
28	59	41
29	59	41
30	58	42
31	58	42

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

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

	Clearer (%)	Cloudier (%)
1	53	47
2	53	47
3	53	47
4	53	47
5	53	47
6	53	47
7	53	47
8	53	47
9	53	47
10	53	47
11	53	47
12	53	47
13	54	46
14	54	46
15	54	46
16	56	44
17	56	44
18	56	44
19	58	42
20	58	42
21	58	42
22	58	42
23	58	42
24	59	41
25	59	41
26	59	41
27	58	42
28	59	41
29	59	41
30	58	42
31	58	42

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

	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