Tomsk weather in May

In May, Tomsk sees average daytime highs of 15°C and overnight lows near 5°C, with 49 mm of precipitation across 10.8 wet days and about 16.1 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 18°C by the end. The sky is clear or mostly clear about 18% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 06 min at the start of May to 16 h 54 min by month's end. Set against the rest of the year, May is Tomsk's 4th-clearest and 8th-windiest month. For the whole year in context, see Tomsk's year-round climate.

Daytime high
15°
4th warmest
Overnight low
8th coldest
Precipitation
49 mm
10.8 wet days
Daylight
16 h 06 min
4:13 AM – 8:20 PM
Cloud cover
67%
4th clearest
Wind
12 km/h
8th windiest
Solar energy
5.45 kWh/m²
Travel score
4.5
out of 10

Tomsk is city in and administrative center of Tomsk Oblast, Russia.

Density
1,948/km²
people per km²
Founded
1604

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 12°C in the first days to 18°C by the end.

A typical May day in Tomsk reaches about 15°C in the afternoon and slips back to 5°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 24°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)
1111
2121
3121
4122
5132
6132
7133
8143
9143
10143
11144
12154
13154
14154
15154
16165
17165
18165
19165
20165
21176
22176
23176
24176
25176
26177
27187
28187
29187
30188
31198

How May really feels in Tomsk

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 10 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
10
wind chill below the day's low

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

Tomsk weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-14° / -21°267.910.67.20.0
Feb-10° / -18°206.88.89.10.0
Mar-2° / -11°267.98.611.40.0
Apr / -3°338.54.313.91.0
May15° / 4910.80.916.14.5
Jun21° / 11°5511.2017.36.2
Jul23° / 13°6211.5016.86.6
Aug20° / 11°6311.9014.96.0
Sep14° / 5211.40.212.53.7
Oct / -2°5312.56.410.10.6
Nov-5° / -12°4811.612.57.90.0
Dec-12° / -18°3911.4146.70.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53169
63169
73268
83268
93268
103268
113268
123268
133169
143169
153169
163169
173169
183268
193367
203367
213367
223367
233367
243367
253466
263466
273664
283664
293664
303763
313763

Chance of precipitation in May

Any precipitationSnow

Tomsk gets around 49 mm of rain and snow over 10.8 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 35% and peaks near 37% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1368
2367
3367
4367
5366
6356
7355
8355
9345
10344
11344
12344
13343
14343
15343
16343
17343
18342
19342
20352
21352
22352
23351
24351
25361
26361
27361
28361
29371
30370
31370

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
910000
1010000
1110000
129910
139910
149910
159910
169910
179820
189820
199820
209730
219730
229730
239640
249640
259640
269550
279550
289550
299460
309460
319271

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 15 h 06 min at the start of May to 16 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over May. Sunrise moves from 4:45 AM to 3:50 AM, and sunset from 7:49 PM to 8:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.14:457:49
215.14:437:51
315.24:417:53
415.34:387:56
515.44:367:58
615.44:348:00
715.54:328:02
815.64:298:04
915.64:278:06
1015.74:258:08
1115.84:238:10
1215.84:218:12
1315.94:198:14
1416.04:178:16
1516.04:158:18
1616.14:138:20
1716.24:118:21
1816.24:098:23
1916.34:088:25
2016.44:068:27
2116.44:048:29
2216.54:028:31
2316.54:018:32
2416.63:598:34
2516.63:588:36
2616.73:568:37
2716.73:558:39
2816.83:538:41
2916.83:528:42
3016.93:518:44
3116.93:508:45

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.45 kWh/m².

For context, solar energy here swings from a low near 0.41 kWh/m² to a high of 5.92 kWh/m² in June across the year — May's 5.45 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Tomsk?

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

4.5
Sightseeing
4th-best month of the year
0.7
Beach & pool
4th-best month of the year

May is a reasonable time to visit Tomsk for sightseeing.

What to pack for Tomsk in May

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

In May, Tomsk sees daytime highs around 15°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Tomsk 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 Tomsk peaks around July 10 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 5 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 10UV 6Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May5Moderate
Jun6High
Jul6High
Aug5Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low

Air quality in Tomsk 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 Tomsk is worst in April — around 18 µg/m³ PM2.5 (moderate), about 5.1× the cleanest month (December, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodApr 1717 µg/m³Dec 164 µg/m³
PM2.5 (µg/m³)Level
Jan5Good
Feb8Good
Mar9Good
Apr18Moderate
May11Good
Jun10Good
Jul15Moderate
Aug9Good
Sep7Good
Oct7Good
Nov5Good
Dec4Good
Location & terrain

Where is Tomsk?

Tomsk sits at 56.5°N, 85.0°E, 122 m above sea level, in Russia. The nearest listed city is Seversk, 13 km away.

Topography around Tomsk

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

Within 3 km, the terrain around Tomsk has only modest variations in elevation — a maximum elevation change of 105 m around an average of 112 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 146 m; within 80 km, only modest variations in elevation — a maximum elevation change of 239 m.

The land around Tomsk is covered by artificial surfaces (64%) and trees (28%) within 3 km, trees (61%) within 16 km, and trees (77%) within 80 km.

3 km
105 m
16 km
146 m
80 km
239 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Seversk 13 km · Tayga 62 km · Yashkino 75 km · Anzhero-Sudzhensk 80 km · Yurga 87 km · Asino 90 km · Bolotnoye 99 km · Berëzovskiy 122 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 Tomsk (56.5005°, 84.9822°, elevation 122 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).