Tomsk climate
Tomsk (Tomsk Oblast, Russia) has a subarctic climate (Köppen Dfc). The average temperature over the year is 0 °C32 °F, and about 604 mm24 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Tomsk climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | −171 | −24−12 | −21−5 | 291.1 | 31 |
| Feb | −138 | −21−6 | −171 | 261.0 | 28 |
| Mar | −425 | −1210 | −817 | 361.4 | 31 |
| Apr | 542 | −426 | 134 | 401.6 | 24 |
| May | 1559 | 439 | 949 | 612.4 | 9 |
| Jun | 2272 | 1253 | 1762 | 662.6 | 0 |
| Jul | 2374 | 1457 | 1965 | 823.2 | 0 |
| Aug | 2170 | 1152 | 1661 | 602.4 | 0 |
| Sep | 1457 | 541 | 949 | 532.1 | 3 |
| Oct | 439 | −228 | 134 | 542.1 | 22 |
| Nov | −720 | −139 | −1014 | 532.1 | 30 |
| Dec | −146 | −21−7 | −180 | 431.7 | 31 |
| Year | 2374 | −24−12 | 032 | 60424 | 210 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 98% | 60% | 0.7 | 7:28 |
| Feb | 98% | 60% | 1.7 | 9:26 |
| Mar | 98% | 67% | 2.9 | 11:38 |
| Apr | 85% | 67% | 4.2 | 14:09 |
| May | 72% | 68% | 5.1 | 16:22 |
| Jun | 74% | 65% | 5.8 | 17:42 |
| Jul | 76% | 66% | 5.3 | 17:09 |
| Aug | 75% | 64% | 4.3 | 15:07 |
| Sep | 77% | 71% | 2.8 | 12:39 |
| Oct | 85% | 81% | 1.4 | 10:14 |
| Nov | 95% | 77% | 0.6 | 8:02 |
| Dec | 99% | 69% | 0.4 | 6:52 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Tomsk is like
The warmest month is July, with an average high of 23 °C74 °F and a low of 14 °C57 °F. The coldest is January, when highs average −17 °C1 °F and lows −24 °C−12 °F. The climate is extremely continental — the average temperature swings by 39.3 °C70.7 °F between the coldest and the warmest month.
Annual precipitation is moderate at about 604 mm24 in. The wettest three-month stretch is May–July, which brings 35% of the annual total. The wettest month is July (82 mm3.2 in), the driest is February (26 mm1.0 in).
Relative humidity ranges from 72% in May to 99% in December. The clearest skies (lowest average cloud amount, 60%) are typical of January. Average wind speed near the ground ranges from 3 km/h (2 mph) in July to 7 km/h (4 mph) in March. Daylight lasts from about 6.9 hours in December to 17.7 hours in June.
A lasting snow cover is typical in October–April, when the average snow depth in the reanalysis exceeds 10 cm (deepest in March, about 51 cm).
Best time to visit Tomsk
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–August: average highs of 21 °C70 °F to 23 °C74 °F with 60 mm2.4 in to 82 mm3.2 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of −17 °C1 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Tomsk
- Winter (December–February) — highs −171 to −13 °C8 °F, lows −24−12 to −21 °C−6 °F, about 33 mm1.3 in of precipitation a month. Pack heavy insulated clothing, thermal base layers, a warm hat, mittens and insulated boots.
- Spring (March–May) — highs −425 to 15 °C59 °F, lows −1210 to 4 °C39 °F, about 46 mm1.8 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Summer (June–August) — highs 2170 to 23 °C74 °F, lows 1152 to 14 °C57 °F, about 70 mm2.7 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs −720 to 14 °C57 °F, lows −139 to 5 °C41 °F, about 53 mm2.1 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
How Tomsk compares
Compared with Novosibirsk, about 208 km to the southwest, Tomsk is on average 1.3 °C2.3 °F cooler and receives 17% more precipitation (604 mm24 in vs 515 mm20 in). The difference is largest in April (1.9 °C3.4 °F cooler).
Of the 169 places in Russia covered by World Climates, Tomsk is the 147th warmest by annual mean temperature and the 105th wettest by annual precipitation. See all of them on the Russia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Petropavl (Kazakhstan, Dfb), Kokshetau (Kazakhstan, Dfb) and Hulunbuir (China, Dwb).
The same NASA POWER grid cell also contains Seversk (pop. 109,844). Their long-term averages in this dataset are essentially the same as for Tomsk, so they do not have separate pages.
Nearby places
- Kemerovo 145 km · 1 °C33 °F · 700 mm28 in
- Novosibirsk 208 km · 1 °C34 °F · 515 mm20 in
- Leninsk-Kuznetsky 218 km · 1 °C34 °F · 634 mm25 in
- Prokopyevsk 308 km · 1 °C34 °F · 674 mm27 in
- Novokuznetsk 334 km · 2 °C35 °F · 674 mm27 in
- Achinsk 341 km · 0 °C32 °F · 617 mm24 in
- Barnaul 358 km · 2 °C35 °F · 480 mm19 in
- Mezhdurechensk 369 km · 2 °C36 °F · 921 mm36 in
Frequently asked questions
What is the warmest month in Tomsk?
July is the warmest month in Tomsk, with an average high of 23 °C (74 °F) and an average low of 14 °C (57 °F).
What is the coldest month in Tomsk?
January is the coldest month, with an average high of -17 °C (1 °F) and an average low of -24 °C (-12 °F).
When does it rain the most in Tomsk?
July is the wettest month with about 82 mm (3.2 in) of precipitation; February is the driest with about 26 mm (1.0 in).
What is the best time to visit Tomsk?
Judging by long-term averages, the most comfortable months are June–August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.