Weather in Czechia in September
Country-wide climate normals across 15 cities in Czechia.
How Hot Is Czechia in September?
Uniform warmth covers Czechia in September: highs near 20°C across all cities.
Sunshine in Czechia in September
Czechia's September brings mixed skies — Prague averages 4.3h of sun, with similar conditions nationwide. Cloudy periods alternate with sunny stretches, and the sun is up between 6:40 am and 7:15 pm. Plan for variability rather than guaranteed sunshine.
Does It Rain In Czechia In September?
Typical September rainfall covers Czechia: about 76mm in Prague across 9 days, with wetter conditions in coastal regions and drier conditions inland. Expect showers about half the days, but extended dry stretches between them. The pattern is variable but predictable.
Is Czechia Humid In September?
Czechia's September is humid — 71% on average in Prague, with similar muggy conditions in most regions. Afternoons feel sticky, especially after rain, and the moisture amplifies warm-day temperatures noticeably. Coastal cities see the highest readings.
Wind In Czechia In September
Light breezes are typical across Czechia in September: 15 kph in Prague, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In Czechia In September
Cloudy skies dominate Czechia in September — 56% cover in Prague, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.