What December feels like in Brno
Early winter arrives in Brno with December. It is cold outside for most of the day; indoor breaks come as a relief. Little changes after sunset — nights hover around freezing, so frost is common, only slightly below the daytime level. The air is damp, which makes cool temperatures feel colder, particularly in wind.
Rain in Brno in December
Showers are a regular feature, arriving about one day in 3. Each rainy day adds about 4 mm (0.2 in), a proper wetting rather than a sprinkle. 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 December
In mid-December, sunrise is at about 7:41 am and sunset at about 3:56 pm (local time) — 8 h 14 min of daylight. Days are getting shorter: 57 min less daylight than in mid-November. The sun is out for roughly 41% of those daylight hours, so sun and cloud share the day.
How December compares to the rest of the year
Ranked by average high, December comes out as the 2nd coolest month in Brno. Afternoons run 4.5°C (8.1°F) cooler than in November, with 5 mm less rain. The cooling trend carries on into January. January averages a high of 2.6°C (36.7°F).
Who December 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 December
Rain Protection
Keep a small umbrella in your bag and wear shoes that cope with puddles.
Warm Layers
Insulated layers and warm shoes for the cold hours.
Quick questions
How warm is Brno in December?
Afternoons average 3.6°C (38.5°F) and nights about -1.2°C (29.8°F) — cold by most people's standards. It is the 2nd coolest month of the year.
Does it rain a lot in Brno in December?
Yes, fairly — rain falls about one day in 3 and totals about 36 mm, so an umbrella is worth carrying.
What should I wear in Brno in December?
Pack rain protection and warm layers. Evenings feel similar to the day, so the same clothes work from morning to night.
Is December or January better for visiting Brno?
December scores better on our climate ranking (#11 of 12 vs #12), rated Poor against Poor. January is cooler and has more rainy days.