Brno Weather in September
19.7°C high · 9.7°C low · 41 mm rain · 5.4h sun
Sep is a warm month in Brno — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 19.7°C |
| Average low | 9.7°C |
| Rainfall | 41 mm |
| Sunshine | 5.4 hours/day |
| Daylight | 12.3 hours |
What to pack in September
Pack a jacket and layers for Brno in September.
Brno weather by month
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Frequently asked questions
What is the weather in Brno in September?
Highs of 19.7°C and lows of 9.7°C, with about 41 mm of rain and 5.4 hours of sunshine per day.
Is September a good time to visit Brno?
Sep is a warm month in Brno — not peak season, but a good time to avoid crowds.
What to do in Brno · Best time to visit Brno
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.