Czech Republic Guide
Weather
In general, the climate is continental, with short, fairly hot summers and chilly winters. Spring can be a good time to visit, as the days tend to warm quickly, with consistently pleasant, mild weather for most of May. This is also the blossom season, when the fruit trees that line so many Czech roads are in full flower. Autumn is also recommended, with clear and settled weather often lasting for days on end in September and October. With much of the country heavily forested, this is also a great time to appreciate the changing colours of the foliage.
Winter can be a good time to come to Prague: the city looks beautiful under snow and there are fewer tourists to compete with. Other parts of the country have little to offer during winter (aside from skiing), and most sights stay firmly closed between November and March. Summer is, of course, still the season during which the largest number of tourists descend. Certainly, temperatures are at their highest, with the occasional heat wave pushing readings well above 30°C. While that can be advantageous if you fancy swimming in a lake or river, it's not fun in Prague, which is also at its most crowded in July and August.