Usol’ye-Sibirskoye weather in May

In May, Usol’ye-Sibirskoye sees average daytime highs of 18°C and overnight lows near 4°C, with 34 mm of precipitation across 8.4 wet days and about 15.5 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 21°C by the end. The sky is clear or mostly clear about 24% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of May to 16 h 12 min by month's end. Set against the rest of the year, May is Usol’ye-Sibirskoye's 7th-clearest and 1st-windiest month. For the whole year in context, see Usol’ye-Sibirskoye's year-round climate.

Daytime high
18°
4th warmest
Overnight low
8th coldest
Precipitation
34 mm
8.4 wet days
Daylight
15 h 30 min
5:16 AM – 8:48 PM
Cloud cover
63%
7th clearest
Wind
11 km/h
1st windiest
Solar energy
6.03 kWh/m²
Travel score
5.8
out of 10

Usol’ye-Sibirskoye is town in Russia.

Density
1,161/km²
people per km²
Founded
1669

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 21°C by the end.

A typical May day in Usol’ye-Sibirskoye reaches about 18°C in the afternoon and slips back to 4°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 26°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)
1140
2141
3151
4151
5151
6152
7162
8162
9162
10172
11173
12173
13173
14183
15184
16184
17184
18194
19195
20195
21195
22195
23195
24206
25206
26206
27206
28207
29217
30217
31217

How May really feels in Usol’ye-Sibirskoye

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 12 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
12
wind chill below the day's low

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

Usol’ye-Sibirskoye 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-16° / -25°41.22.57.90.0
Feb-10° / -22°41.52.79.50.0
Mar-1° / -14°93411.50.0
Apr10° / -3°205.53.113.62.3
May18° / 348.40.815.55.8
Jun24° / 11°6310.4016.56.7
Jul25° / 14°8812.4016.16.4
Aug22° / 12°8611.2014.56.5
Sep15° / 5310.30.412.44.7
Oct / -4°185.42.910.31.0
Nov-6° / -14°113.64.88.50.0
Dec-14° / -23°93.14.77.50.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33961
43961
54060
64159
74159
84060
94159
104159
114159
124159
134258
144258
154159
164159
174159
184060
194060
204159
214060
224159
234159
244258
254258
264258
274357
284258
294258
304258
314258

Chance of precipitation in May

Any precipitationSnow

Usol’ye-Sibirskoye gets around 34 mm of rain and snow over 8.4 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 27% and peaks near 32% 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 (%)
1227
2226
3226
4225
5225
6224
7224
8223
9233
10233
11232
12242
13252
14252
15262
16272
17282
18292
19292
20302
21302
22312
23312
24322
25322
26321
27321
28321
29321
30321
31321

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 (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
28991
29991
30991
31991

Wind in May

Winds average 11 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 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
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 42 min at the start of May to 16 h 12 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 5:43 AM to 4:57 AM, and sunset from 8:22 PM to 9:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.75:438:22
214.75:418:24
314.85:398:26
414.85:378:27
514.95:358:29
615.05:338:31
715.05:318:33
815.15:308:34
915.15:288:36
1015.25:268:38
1115.35:248:39
1215.35:228:41
1315.45:218:43
1415.45:198:44
1515.55:178:46
1615.55:168:48
1715.65:148:49
1815.65:138:51
1915.75:118:52
2015.75:108:54
2115.85:088:55
2215.85:078:57
2315.95:068:58
2415.95:049:00
2516.05:039:01
2616.05:029:03
2716.15:019:04
2816.15:009:05
2916.14:599:07
3016.24:589:08
3116.24:579:09

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.03 kWh/m².

For context, solar energy here swings from a low near 0.88 kWh/m² to a high of 6.11 kWh/m² in June across the year — May's 6.03 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
116.0Bright
126.0Bright
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in May

Is May a good time to visit Usol’ye-Sibirskoye?

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
2.0
Beach & pool
4th-best month of the year

May is a reasonable time to visit Usol’ye-Sibirskoye for sightseeing.

What to pack for Usol’ye-Sibirskoye in May

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

In May, Usol’ye-Sibirskoye sees daytime highs around 18°C and nights near 4°C. Pack sun protection. Worth having: a warm layer and rain gear. About 8 days see rain.

sun protectiona warm layerrain gear

UV index in Usol’ye-Sibirskoye 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 Usol’ye-Sibirskoye peaks around July 12 at about 6 (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 12UV 6Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5High
Jun6High
Jul6High
Aug5Moderate
Sep3Moderate
Oct2Low
Nov1Low
Dec1Low

Air quality in Usol’ye-Sibirskoye 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 Usol’ye-Sibirskoye is worst in May — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (November, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodMay 1617 µg/m³Nov 138 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Moderate
Mar11Good
Apr14Moderate
May17Moderate
Jun14Moderate
Jul17Moderate
Aug14Moderate
Sep9Good
Oct9Good
Nov8Good
Dec9Good
Location & terrain

Where is Usol’ye-Sibirskoye?

Usol’ye-Sibirskoye sits at 52.8°N, 103.6°E, 435 m above sea level, in Russia. The nearest listed city is Angarsk, 28 km away.

Topography around Usol’ye-Sibirskoye

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Usol’ye-Sibirskoye.

Within 3 km, the terrain around Usol’ye-Sibirskoye has only modest variations in elevation — a maximum elevation change of 91 m around an average of 438 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 213 m; within 80 km, large variations in elevation — a maximum elevation change of 1,029 m.

The land around Usol’ye-Sibirskoye is covered by trees (40%), artificial surfaces (33%) and grassland (20%) within 3 km, trees (53%) and grassland (28%) within 16 km, and trees (60%) and grassland (22%) within 80 km.

3 km
91 m
16 km
213 m
80 km
1,029 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Angarsk 28 km · Cheremkhovo 58 km · Irkutsk 67 km · Shelekhov 67 km · Markova 72 km · Slyudyanka 121 km · Baykal’sk 142 km · Zima 168 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 Usol’ye-Sibirskoye (52.7519°, 103.6453°, elevation 435 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).