Bulgan weather in May

In May, Bulgan sees average daytime highs of 17°C and overnight lows near 3°C, with 37 mm of precipitation across 7.9 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 14°C in the first days to 19°C by the end. The sky is clear or mostly clear about 27% 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 Bulgan's 9th-clearest and 2nd-windiest month. For the whole year in context, see Bulgan's year-round climate.

Daytime high
17°
4th warmest
Overnight low
8th coldest
Precipitation
37 mm
7.9 wet days
Daylight
15 hours
5:31 AM – 8:33 PM
Cloud cover
59%
9th clearest
Wind
11 km/h
2nd windiest
Solar energy
6.5 kWh/m²
Travel score
5.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 14°C in the first days to 19°C by the end.

A typical May day in Bulgan reaches about 17°C in the afternoon and slips back to 3°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 24°C. Set against its neighbours, May runs about 7°C warmer than April and about 5°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1140
2140
3140
4141
5151
6151
7151
8151
9152
10162
11162
12162
13162
14163
15173
16173
17173
18173
19184
20184
21184
22184
23184
24195
25195
26195
27195
28196
29196
30206
31206

How May really feels in Bulgan

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 15 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
15
wind chill below the day's low

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

Bulgan 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-13° / -25°20.61.28.50.0
Feb-8° / -22°31.21.99.80.0
Mar / -13°103.13.911.60.0
Apr10° / -3°225.94.513.42.5
May17° / 377.92.4155.6
Jun22° / 10°5910.50.115.96.5
Jul23° / 13°7912.9015.56.4
Aug21° / 10°7611.2014.26.3
Sep16° / 367.21.212.45.4
Oct / -5°174.43.710.51.5
Nov-4° / -15°82.63.38.90.0
Dec-11° / -22°31.21.58.10.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% 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 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24456
34456
44456
54456
64357
74456
84456
94456
104555
114555
124456
134555
144654
154753
164852
174852
184852
194951
205050
215149
225149
235248
245248
255248
265248
275149
285248
295149
305248
315149

Chance of precipitation in May

Any precipitationSnow

Bulgan gets around 37 mm of rain and snow over 7.9 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 26% and peaks near 28% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12111
22211
32211
42311
52311
62411
72410
82510
92510
10269
11269
12279
13278
14278
15288
16287
17287
18287
19287
20286
21286
22286
23286
24276
25275
26275
27275
28274
29274
30273
31273

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.

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 May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 5:54 AM to 5:15 AM, and sunset from 8:12 PM to 8:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:548:12
214.35:538:13
314.45:518:15
414.55:498:16
514.55:478:18
614.65:468:19
714.65:448:21
814.75:438:22
914.75:418:24
1014.85:408:25
1114.85:388:26
1214.95:378:28
1314.95:358:29
1414.95:348:31
1515.05:328:32
1615.05:318:33
1715.15:308:35
1815.15:288:36
1915.25:278:37
2015.25:268:39
2115.35:258:40
2215.35:248:41
2315.35:228:42
2415.45:218:44
2515.45:208:45
2615.45:198:46
2715.55:188:47
2815.55:188:48
2915.55:178:49
3015.65:168:50
3115.65:158:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.5 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.42 kWh/m² to a high of 6.5 kWh/m² in May across the year — May's 6.5 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.3Intense
96.3Intense
106.3Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in May

Is May a good time to visit Bulgan?

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

5.6
Sightseeing
4th-best month of the year
1.4
Beach & pool
4th-best month of the year

May is a reasonable time to visit Bulgan for sightseeing.

What to pack for Bulgan in May

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

In May, Bulgan sees daytime highs around 17°C and nights near 3°C. Pack sun protection. Worth having: a warm layer. About 8 days see rain.

sun protectiona warm layer

UV index in Bulgan 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 Bulgan peaks around July 16 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 16UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May7High
Jun7High
Jul8Very high
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Bulgan?

Bulgan sits at 48.8°N, 103.5°E, 1,204 m above sea level, in Mongolia. The nearest listed city is Erdenet, 47 km away.

DarhanDzüünharaaTsetserlegSühbaatarMörönUlaanbaatarKyakhta

Topography around Bulgan

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

Within 3 km, the terrain around Bulgan has only modest variations in elevation — a maximum elevation change of 210 m around an average of 1,241 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,028 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,348 m.

The land around Bulgan is covered by grassland (89%) within 3 km, grassland (86%) within 16 km, and grassland (76%) and trees (23%) within 80 km.

3 km
210 m
16 km
1,028 m
80 km
1,348 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Erdenet 47 km · Darhan 189 km · Dzüünharaa 214 km · Tsetserleg 214 km · Sühbaatar 249 km · Mörön 261 km · Ulaanbaatar 267 km · Kyakhta 271 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 Bulgan (48.8125°, 103.5347°, elevation 1,204 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).