Click on a day for an hourly weather forecast
The temperatures in Brno in May are quite cold with temperatures between 8°C and 18°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Brno. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Brno in May 2025.
If you’re planning to visit Brno in the near future, we highly recommend that you review the 14 day weather forecast for Brno before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -3° | 5 | 11 | 14 | 47 mm | Awful | Brno in January |
| February | 3° / -2° | 5 | 12 | 11 | 44 mm | Awful | Brno in February |
| March | 9° / 2° | 5 | 21 | 5 | 46 mm | Bad | Brno in March |
| April | 15° / 5° | 4 | 24 | 1 | 43 mm | Good | Brno in April |
| May | 18° / 8° | 8 | 23 | 0 | 104 mm | Ok | Brno in May |
| June | 23° / 12° | 7 | 23 | 0 | 124 mm | Good | Brno in June |
| July | 25° / 14° | 7 | 24 | 0 | 102 mm | Good | Brno in July |
| August | 26° / 15° | 4 | 27 | 0 | 68 mm | Perfect | Brno in August |
| September | 20° / 11° | 4 | 26 | 0 | 72 mm | Good | Brno in September |
| October | 14° / 6° | 4 | 26 | 1 | 55 mm | Good | Brno in October |
| November | 8° / 3° | 5 | 23 | 3 | 41 mm | Bad | Brno in November |
| December | 3° / -2° | 7 | 15 | 10 | 49 mm | Awful | Brno in December |