Brno, Czech Republic skyline

Brno Weather in January

What January is usually like in Brno, Czech Republic — from 2006–2025 averages.

Expect Brno to reach about 2.6°C (36.7°F) by day and -3.1°C (26.4°F) at night in January, with 10 rainy days bringing 37 mm and around 4 hours of sunshine each day.

Avg high

2.6°C (36.7°F)

Avg low

-3.1°C (26.4°F)

Rainfall

37 mm (1.5 in)

Rainy days

10 days

Sunshine

4 h / day

Humidity

83%

January vs the rest of the year

January is the coolest month in Brno, and the 3rd driest for rain.

MonthAvg highvs JanuaryRainRainy days
January2.6°C (36.7°F)—37 mm10
February5°C (41°F)+2.4°C (+4.3°F)28 mm7
March9.8°C (49.6°F)+7.2°C (+13°F)39 mm8
April15.4°C (59.7°F)+12.8°C (+23°F)39 mm9
May19.1°C (66.4°F)+16.5°C (+29.7°F)73 mm13
June23.9°C (75°F)+21.3°C (+38.3°F)74 mm12
July26.1°C (79°F)+23.5°C (+42.3°F)69 mm11
August25.4°C (77.7°F)+22.8°C (+41°F)74 mm10
September20.4°C (68.7°F)+17.8°C (+32°F)74 mm9
October14.2°C (57.6°F)+11.6°C (+20.9°F)42 mm8
November8.1°C (46.6°F)+5.5°C (+9.9°F)41 mm9
December3.6°C (38.5°F)+1°C (+1.8°F)36 mm9

What January feels like in Brno

Winter bottoms out in January, the coolest month of Brno's year. Afternoons stay around freezing — the sort of cold that makes long outdoor stretches hard work. Little changes after sunset — nights drop well below freezing, only slightly below the daytime level. Damp air makes the cold feel rawer than the numbers alone suggest.

Rain in Brno in January

Expect a mix of dry and wet days, with rain about one day in 3. Rainfall per wet day is small, about 3.7 mm (0.1 in), so showers tend to pass quickly. That is lighter than the city's yearly norm of about 5.5 mm per rainy day. It is among the three driest months of the year.

Daylight and sunshine in January

On 15 January the sun rises at about 7:43 am and sets around 4:21 pm local time, giving 8 h 38 min of daylight. Since mid-December the day has gained 23 min. The sun is out for roughly 46% of those daylight hours, so sun and cloud share the day.

How January compares to the rest of the year

Ranked by average high, January comes out as the coolest month in Brno. Compared with December, afternoons are 1°C (1.8°F) cooler, with 1 mm more rain. From here it only gets warmer, starting with February. The next month's average high: 5°C (41°F).

Who January suits

  • Sightseeing: less ideal — it is cold for long walks.
  • Parks & outdoor: less ideal — too cool to sit outside for long.
  • Museums & indoor: a good choice — warm places to spend the coldest part of the day.

Tips for visiting Brno in January

Rain Protection

A compact umbrella and a light waterproof jacket.

Warm Layers

A proper winter coat, with gloves and a hat for early starts.

Quick questions

How warm is Brno in January?

Afternoons average 2.6°C (36.7°F) and nights about -3.1°C (26.4°F) — freezing by most people's standards. It is the coolest month of the year.

Does it rain a lot in Brno in January?

Only moderately: roughly 10 wet days and 37 mm, usually light showers.

What should I wear in Brno in January?

The numbers point to rain protection and warm layers. Evenings feel similar to the day, so the same clothes work from morning to night.

Is January or February better for visiting Brno?

February scores better on our climate ranking (#10 of 12 vs #12), rated Fair against Poor. February is warmer and has fewer rainy days.

Is January a good time to visit Brno?

Poor

Poor — cold days, freezing nights, some rainy days (about 10). Within Brno's own year, January ranks #12 of 12 — one of the least comfortable months.

January in other Czech Republic cities

Warmer or drier places in January

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Brno weather by month.