Prague Weather in September
In September, Prague averages a high of 20°C (68°F) and a low of 11°C (52°F), from 47 years of daily records (1971–2026).
20°C
Average high
68°F
11°C
Average low
52°F
33°C
Record high
92°F · September 3, 2024
0°C
Record low
33°F · September 30, 2018
What September Is Like in Prague
- Prague's hottest September day on record is a recent one: 33°C (92°F) on September 3, 2024.
- The warmest September in the record was 1999; the coldest was 1996.
At least 1 mm of rain falls on 24% of September days, and the month averages 38 mm in total.
Warmest: 2023 (25.1°C)Latest: 2025 (19.9°C)10-year averageLong-run average (19.8°C)
Look Up a Day in September
See the weather in Prague on any September date, year by year.
Source: NOAA GHCN-Daily, Praha-Klementinum (1971–2005); Praha-Libus (2005–2026). Averages cover 1971–2026. How we compute this