City in South Moravia, Czech Republic
Brno weather by month and the best time to visit
When to go to Brno
May–Jun and Sep–Oct are mild and lively. Jul–Aug is hot; Dec has markets. Winter is cold and gray.
Brno weather by month
Average daily high, rainfall and conditions.
- Jan1°38 mm
- Feb4°32 mm
- Mar9°36 mm
- Apr16°34 mm
- May20°67 mm
- Jun25°69 mm
- Jul28°70 mm
- Aug27°64 mm
- Sep21°61 mm
- Oct14°44 mm
- Nov8°38 mm
- Dec2°38 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 1°C34°F | -6°C22°F | 38 mm | 92% | Freezing |
| February | 4°C38°F | -4°C24°F | 32 mm | 88% | Cold |
| March | 9°C49°F | -1°C30°F | 36 mm | 80% | Cold |
| April | 16°C60°F | 4°C39°F | 34 mm | 73% | Cool |
| May | 20°C69°F | 9°C49°F | 67 mm | 71% | Pleasant |
| June | 25°C77°F | 14°C56°F | 69 mm | 66% | Pleasant |
| July | 28°C82°F | 16°C60°F | 70 mm | 62% | Pleasant |
| August | 27°C81°F | 15°C59°F | 64 mm | 62% | Pleasant |
| September | 21°C70°F | 10°C49°F | 61 mm | 70% | Pleasant |
| October | 14°C58°F | 4°C40°F | 44 mm | 81% | Cool |
| November | 8°C46°F | 1°C34°F | 38 mm | 89% | Cold |
| December | 2°C35°F | -4°C25°F | 38 mm | 92% | Freezing |
Best months across Czech Republic
| Place | Best months | Warmest month |
|---|---|---|
| Prague | Apr–May, Sep–Oct | Jul (27°C) |
| Český Krumlov | May–Jun, Sep–Oct | Jul (25°C) |
| Karlovy Vary | May–Jun, Sep | Jul (26°C) |
| Brno | May–Jun, Sep–Oct | Jul (28°C) |
Quick answers
What is the best month to visit Brno?
May–Jun, Sep–Oct. May–Jun and Sep–Oct are mild and lively. Jul–Aug is hot; Dec has markets. Winter is cold and gray.
When is the rainy season in Brno?
Rain peaks in July with about 70 mm. No month averages 150 mm or more.
What is the hottest month in Brno?
July, with average highs of 28°C (82°F).
How cold does Brno get?
The coolest nights are in January, averaging -6°C (22°F).
More about Brno
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.