Vejret i Brno i maj
Brno i maj: behageligt, lidt regn — et fremragende tidspunkt at tage afsted.
Opdateret september 2026 · klimanormaler fra ERA5-reanalysen
Nr. 4 af 12 måneder i Brno · Nr. 428 af 1413 rejsemål at besøge i maj · komfort 85/100 (niveau A)
- Dage
- 20°C
- Nætter
- 9°C
- Våde dage
- 13
- Sol
- 10.8 h
- Luftfugtighed
- 69%
- Dagslys
- 15 h

Noter fra rejsende om Brno i maj
Noter fra Vienna i nærheden (111 km væk)
Brno har ikke sine egne noter for maj endnu — disse handler om Vienna, tæt nok på til at dele sæsonen.
Regulars give May here as 15 to 25C, warm without being humid, and make a point our row supports: May through August are this city's wettest stretch - May is the wettest single month in our row at 85.6mm - but the rain arrives as heavy showers with dry hot spells between rather than as grey days. Our 85.6mm across 10.6 days is that pattern. The averages are cooler than the range suggests, 21C by day reading as 19C in an 18.4 kph wind, over 10.9C nights, so early May can still want a jacket. Their advice is thin layers, something waterproof and a small umbrella as insurance, and not to trust a forecast more than a few days out. The record: humidity 69 percent, 10.5 hours of sun inside 15.2 of daylight, and AQI 52.
Andre måneder i Brno
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.
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.
Tilføj din egen note fra Brno på kortet.
Klimanormaler for Brno — maj
Månedsgennemsnit fra ERA5-reanalysen. AQI er det gennemsnitlige amerikanske luftkvalitetsindeks for måneden.
Travlhed i Brno i maj
Hvor travlt der er på selve stedet — skoleferier og masseferier, de måneder en redaktør har markeret, og hvor eftertragtet vejret gør dem. Aldrig en del af komfortscoren.
TravltIgnis Brunensis fireworks, skoleferie på 4 af de markeder, der fylder stedet(anslået)
TætpakketTravltSkuldersæsonStille
Bedste måneder for vejret i Brno
Rangeret efter dette rejsemåls egen klimakomfortscore året igennem — noget andet end, hvor travlt der bliver (se Travlhed ovenfor).
Pænt vejrVejret i Brno topper juni–august.
Bedste vejrPænt vejrHårdeste vejr
Det sker i Brno i maj
Tilbagevendende sæsonbegivenheder, naturfænomener, lukninger og helligdage — kurateret og med kilder.
- Festival
Ignis Brunensis fireworks
25. maj – 10. jul. · normaltLys & ildTætpakketThe international fireworks competition is fired over the Brno dam on a handful of Wednesday and Saturday nights between late May and early July, with drone shows on some of them. Trams out to Bystrc are full for hours; go early for a shore spot. Kilde ↗
Lige i nærheden sker der noget
Inden for 300 km fra Brno — en dagstur eller et kort hop — hvor der sker noget denne måned. Aldrig en del af komfortscoren.
Hvor ligger Brno?
Brno i maj — ofte stillede spørgsmål
- Er maj et godt tidspunkt at besøge Brno?
- Brno i maj: behageligt, lidt regn — et fremragende tidspunkt at tage afsted. Måneden ligger nr. 4 ud af 12 for Brno på SeasonMaps komfortscore (85/100).
- Hvordan er vejret i Brno i maj?
- I maj har Brno i gennemsnit en dagtemperatur på 19.9 °C og en nattemperatur på 8.9 °C, med omkring 66.2 mm regn fordelt på cirka 12.7 regnvejrsdage.
- Hvordan er luftkvaliteten i Brno i maj?
- Brno har et gennemsnitligt amerikansk luftkvalitetsindeks på omkring 51 i maj.
Inden for 300 km: Vienna's Wiener Festwochen, omkring 14. maj – 20. jun. og Prague's Prague Spring music festival, 12. maj – 4. jun..