Ulan-Ude weather in May

In May, Ulan-Ude sees average daytime highs of 17°C and overnight lows near 3°C, with 31 mm of precipitation across 6.8 wet days and about 15.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 20°C by the end. The sky is clear or mostly clear about 31% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of May to 16 h 06 min by month's end. Set against the rest of the year, May is Ulan-Ude's 5th-clearest and 1st-windiest month. For the whole year in context, see Ulan-Ude's year-round climate.

Daytime high
17°
4th warmest
Overnight low
8th coldest
Precipitation
31 mm
6.8 wet days
Daylight
15 h 24 min
5:04 AM – 8:28 PM
Cloud cover
58%
5th clearest
Wind
11 km/h
1st windiest
Solar energy
6.3 kWh/m²
Travel score
5.8
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 20°C by the end.

A typical May day in Ulan-Ude reaches about 17°C in the afternoon and slips back to 3°C overnight — a 15°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 25°C. Set against its neighbours, May runs about 8°C warmer than April and about 6°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
114-1
2140
3140
4140
5150
6150
7151
8151
9161
10161
11161
12162
13172
14172
15172
16173
17183
18183
19183
20183
21184
22194
23194
24194
25194
26205
27205
28205
29205
30206
31216

How May really feels in Ulan-Ude

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 18 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
18
wind chill below the day's low

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

Ulan-Ude weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-17° / -28°312.18.10.0
Feb-10° / -25°31.11.79.60.0
Mar-0° / -15°51.72.411.50.0
Apr / -4°153.72.713.62.2
May17° / 316.81.115.45.8
Jun23° / 10°447.7016.47.2
Jul25° / 13°539.60166.8
Aug22° / 11°689.9014.46.7
Sep15° / 448.50.312.44.9
Oct / -5°143.92.610.40.9
Nov-6° / -15°93.24.58.60.0
Dec-14° / -24°72.447.60.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34951
45050
54951
64951
74951
84951
94951
104951
114951
125050
134951
144852
154852
164852
174852
184852
194852
204852
214951
224951
234951
244951
255050
265149
275149
285149
295248
305248
315248

Chance of precipitation in May

Any precipitationSnow

Ulan-Ude gets around 31 mm of rain and snow over 6.8 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 22% and peaks near 26% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1177
2177
3176
4176
5176
6175
7185
8185
9184
10194
11194
12204
13213
14223
15233
16233
17243
18253
19253
20263
21263
22263
23263
24262
25262
26252
27252
28252
29241
30241
31231

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, the windiest month of the year.

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
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 36 min at the start of May to 16 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over May. Sunrise moves from 5:30 AM to 4:45 AM, and sunset from 8:04 PM to 8:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.65:308:04
214.65:288:05
314.75:268:07
414.75:248:09
514.85:228:10
614.95:208:12
714.95:198:14
815.05:178:15
915.05:158:17
1015.15:138:19
1115.15:128:20
1215.25:108:22
1315.25:088:23
1415.35:078:25
1515.45:058:26
1615.45:048:28
1715.55:028:30
1815.55:018:31
1915.64:598:33
2015.64:588:34
2115.64:578:35
2215.74:558:37
2315.74:548:38
2415.84:538:40
2515.84:528:41
2615.94:508:42
2715.94:498:44
2815.94:488:45
2916.04:478:46
3016.04:468:47
3116.14:458:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.3 kWh/m².

For context, solar energy here swings from a low near 0.99 kWh/m² to a high of 6.41 kWh/m² in June across the year — May's 6.3 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
46.0Bright
56.0Intense
66.0Intense
76.1Intense
86.1Intense
96.1Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.6Intense
Planning a trip in May

Is May a good time to visit Ulan-Ude?

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

5.8
Sightseeing
4th-best month of the year
1.7
Beach & pool
4th-best month of the year

May is a reasonable time to visit Ulan-Ude for sightseeing.

What to pack for Ulan-Ude in May

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

In May, Ulan-Ude sees daytime highs around 17°C and nights near 3°C. Pack sun protection. Worth having: a warm layer. About 7 days see rain.

sun protectiona warm layer

UV index in Ulan-Ude in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ulan-Ude peaks around July 13 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 7Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5High
Jun6High
Jul7High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Ulan-Ude 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 Ulan-Ude is worst in August — around 58 µg/m³ PM2.5 (unhealthy), about 27.6× the cleanest month (December, 2 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorGoodAug 1553 µg/m³Dec 152 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb5Good
Mar6Good
Apr10Good
May13Moderate
Jun15Moderate
Jul23Moderate
Aug58Unhealthy
Sep7Good
Oct6Good
Nov4Good
Dec2Good
Location & terrain

Where is Ulan-Ude?

Ulan-Ude sits at 51.8°N, 107.6°E, 536 m above sea level, in Russia. The nearest listed city is Gusinoozyorsk, 97 km away.

Topography around Ulan-Ude

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

Within 3 km, the terrain around Ulan-Ude has only modest variations in elevation — a maximum elevation change of 177 m around an average of 532 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 702 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,272 m.

The land around Ulan-Ude is covered by artificial surfaces (64%) within 3 km, trees (49%) and grassland (25%) within 16 km, and trees (66%) and grassland (26%) within 80 km.

3 km
177 m
16 km
702 m
80 km
1,272 m
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
May weather nearby: Gusinoozyorsk 97 km · Petrovsk-Zabaykal’skiy 106 km · Kyakhta 183 km · Sühbaatar 202 km · Irkutsk 232 km · Markova 235 km · Baykal’sk 241 km · Shelekhov 243 km

Russia travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$17,547
2025
Happiness
5.8 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
6.8
per 100k, 2021
Road deaths
12
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 521
Religion
other Christian 2%

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 Ulan-Ude (51.8265°, 107.5998°, elevation 536 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).