Summer Weather in the Czech Republic
Summer in the Czech Republic typically covers the period from June through mid-September. Czech summers are usually mild (20-27°C/70-80°F) and somewhat humid, with the highest temperatures rising to 30-35°C/85-95°F (occasionally even higher) for short periods. Such heat waves can be expected mostly in July and August. Sudden showers and thunderstorms are common, so bring an umbrella or be prepared to dash for cover.