Climate averages 1991–2020
Brno weather
in January.
A cold month with light precipitation: the coolest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a cold month in Brno: daytime highs average 1.9°C and nights cool to about -3.7°C. By daytime temperature it is the coolest month of the year.
Expect about 33 mm of precipitation on roughly 9 days, which makes January a month with light precipitation (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 43 min on an average January day.
The nearest other city in this atlas is Olomouc (64 km away). In January its highs average 1.3°C, 0.6°C cooler than Brno, with 34 mm of precipitation.
Among the 12 cities listed in Czechia, Brno ranks 7th of 12 for the warmest January highs and 1st of 12 for the driest January (precipitation, lowest first). The mean January high of those 12 cities is 2.0°C; Brno is level with that mean.
From January to February, average highs rise by 2.4°C to 4.3°C, and monthly precipitation falls from 33 mm to 28 mm.
The annual picture
January in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Brno climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 1.9°C-3.7°C | -3.7°C | 33 | 8.8 | 8.79 h |
| February | 4.3°C-2.9°C | -2.9°C | 28 | 7.3 | 10.110 h |
| March | 8.9°C0.2°C | 0.2°C | 40 | 8.8 | 11.912 h |
| April | 14.8°C4.7°C | 4.7°C | 40 | 9.1 | 13.714 h |
| May | 19.2°C9.7°C | 9.7°C | 65 | 12.4 | 15.315 h |
| June | 22.8°C13.4°C | 13.4°C | 75 | 12.3 | 16.216 h |
| July | 25.0°C15.5°C | 15.5°C | 84 | 13.0 | 15.816 h |
| August | 24.9°C15.3°C | 15.3°C | 69 | 10.4 | 14.414 h |
| September | 19.5°C11.0°C | 11.0°C | 64 | 9.5 | 12.713 h |
| October | 13.6°C6.4°C | 6.4°C | 44 | 8.9 | 10.811 h |
| November | 7.5°C2.3°C | 2.3°C | 41 | 9.0 | 9.29 h |
| December | 2.6°C-2.3°C | -2.3°C | 36 | 9.0 | 8.38 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
January in nearby cities
- Olomouc in JanuaryCzechia · 64 kmHigh 1.3°C · Low -4.1°C · 34 mm precipitation
- Zlín in JanuaryCzechia · 77 kmHigh 1.6°C · Low -4.0°C · 45 mm precipitation
- Vienna in JanuaryAustria · 111 kmHigh 3.1°C · Low -2.9°C · 35 mm rain
- Pardubice in JanuaryCzechia · 111 kmHigh 2.2°C · Low -3.2°C · 47 mm rain
- Bratislava in JanuarySlovakia · 122 kmHigh 2.9°C · Low -3.1°C · 35 mm rain
- Hradec Králové in JanuaryCzechia · 126 kmHigh 2.1°C · Low -3.3°C · 48 mm rain
- Ostrava in JanuaryCzechia · 140 kmHigh 1.4°C · Low -4.0°C · 47 mm precipitation
- Nitra in JanuarySlovakia · 146 kmHigh 2.7°C · Low -3.4°C · 39 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Brno) is explained once on the Brno year overview and on the Sources, method and limits page.