Brno weather by month

The best time to visit Brno is June to August — 92/100 in June, 26°C and 12 rainy days. The best season is summer, June to August (89/100 on average).

The worst month is January at 42/100 — freezing, a little rain, clean air. See January →

Updated September 2026 · climate normals from ERA5 reanalysis

Planning the wider trip? Best time to visit Czechia →

Brno🇨🇿 Czechia · Central Europe · City92
  1. 42Jan
  2. 55Feb
  3. 68Mar
  4. 78Apr
  5. 85May
  6. 92Jun
  7. 87Jul
  8. 89Aug
  9. 83Sep
  10. 72Oct
  11. 58Nov
  12. 45Dec

Best season: June to August (89/100 on average) · worst January (42/100)

Days
26°C
Nights
14°C
Wet days
12
Sun
12.3 h
Humidity
68%
Daylight
16 h
Brno, Czechia
Photo: Ignat Arapov · Pexels

Brno, month by month

Comfort score out of 100 for the kind of trip Brno is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan42F3°C10 d4 hBusy—
Feb55D6°C8 d6 hBusy—
Mar68C11°C8 d8 hShoulder2
Apr78B16°C9 d10 hBusy2
May85A20°C13 d11 hBusy1
Jun92S26°C12 d12 hPeak2
Jul87A27°C12 d12 hPeak2
Aug89A27°C11 d11 hPeak1
Sep83A22°C10 d9 hShoulder2
Oct72B15°C10 d6 hBusy2
Nov58D8°C9 d4 hBusy1
Dec45F4°C10 d3 hPeak1

What's on in Brno through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

March
  • Easter Festival of Sacred Music20 Mar – 25 Apr (usually)Festival
  • Easter3–6 AprHoliday
May
  • Ignis Brunensis fireworks25 May – 10 Jul (usually)Festival
June
  • Grand Prix of Czechia15 Jun – 25 Jul (usually)Festival
August
  • Den Brna13–18 Aug (usually)Festival
September
  • Moravian harvest and burčák1 Sep – 20 Oct (usually)Season
  • Trade fair weeks20 Sep – 15 Oct (usually)Season
November
  • Brno Christmas markets27 Nov – 23 DecFestival

Everything on in Brno through the year →

Crowds in Brno in June

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsIgnis Brunensis fireworks, Grand Prix of Czechia, school holidays in 4 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Good to know before you go to Brno

Real experiences from travellers' own write-ups, quoted with a link to the original.

Visas & entry

A first-timer's guide to Brno recommends renting a car rather than booking organized tours, since driving in the Czech Republic is genuinely easy and self-driving saves real money while opening up day trips around Moravia, where more than 90% of the country's wine is produced. Their heads-up for anyone expecting Prague-level tourist infrastructure: Brno sees far fewer visitors, so English isn't as widely spoken, which is worth planning around even though it doesn't make the city any harder to enjoy.
Hello Jetlag · Read the original ↗

Traveller notes on Brno

What people who have been say about the place — the year-round notes first, then month by month.

Forum posters describe early June as likely warm with a real chance of at least some rainy days, and June through September broadly as a stretch where rain and grey overcast skies show up more often than visitors expect - highs in the 30sC aren't unusual by height of summer, with evening storms rolling through every few days. The clear upside posters raise for June specifically: it beats the bigger July-August crowds while still bringing decent warmth. For families, Brno gets called out as especially kid-friendly, with the Villa Tugendhat, the ossuary and the Brno Zoo named as reliable options regardless of what the sky does that day.
Tripadvisor community · June · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe December across the Czech Republic as capable of real cold but generally mild enough winter overall that it wouldn't stop hours of walking, with heavy snow before Christmas described as unusual though genuinely possible. Posters consistently recommend layers, a proper coat, scarf, hat and gloves, plus good walking shoes, while noting snow boots or a heavy parka usually aren't necessary. Posters specifically flag Brno's Christmas markets as starting around November 22-23rd and highlight the city's past recognition as European Capital of Christmas, with markets that stay noticeably less crowded than the bigger, more famous ones in Vienna or Prague. Posters generally rate December as a genuinely good, atmospheric time to visit Brno, cold weather included.
Tripadvisor community · December · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Brno's card on the map.