Prague Marathon: race-day weather at past editions
Prague Marathon: at 9:00 on race day the temperature averaged 13 °C over 29 editions from 1995 to 2025 (from 5 °C to 19 °C); rain fell during race hours (08:00–14:00) in 5 editions (17%). Source: ERA5 reanalysis (Copernicus), data to 2025.
13 °Caverage at 9:00 on race day
5 / 29editions with rain 08–14 h
10 / 29editions with ≥ 20 °C by 14:00
25 °C (2007)warmest race morning–midday
Climate, not a forecast: these are statistics of past weather, not a forecast for the next edition.
Climate of the usual dates
Weather around the usual race date (12 May, ± 3 days) in 1991–2025:
- 14 °C — average temperature at 9:00
- 21% — share of mornings with rain 08–14 h
- 19 °C — average daily maximum
Average daily maximum on these dates: 19.0 °C in 1991–2005, 19.3 °C in 2011–2025.
Weather at past editions
| Year | Date | 9:00 | Max 08–14 | Rain 08–14 |
|---|---|---|---|---|
| 2025 | 4 May | 11 °C | 14 °C | 1.0 mm |
| 2024 | 5 May | 17 °C | 20 °C | 0.1 mm |
| 2023 | 7 May | 12 °C | 14 °C | 0.0 mm |
| 2022 | 8 May | 15 °C | 20 °C | 0.0 mm |
| 2019 | 5 May | 5 °C | 9 °C | 0.0 mm |
| 2018 | 6 May | 14 °C | 20 °C | 0.0 mm |
| 2017 | 7 May | 13 °C | 17 °C | 0.4 mm |
| 2016 | 8 May | 15 °C | 20 °C | 0.0 mm |
| 2015 | 3 May | 12 °C | 17 °C | 0.2 mm |
| 2014 | 11 May | 14 °C | 15 °C | 0.4 mm |
| 2013 | 12 May | 13 °C | 16 °C | 0.2 mm |
| 2012 | 13 May | 8 °C | 10 °C | 0.0 mm |
| 2011 | 8 May | 14 °C | 18 °C | 0.0 mm |
| 2010 | 9 May | 13 °C | 18 °C | 0.1 mm |
| 2009 | 10 May | 19 °C | 21 °C | 1.1 mm |
| 2008 | 11 May | 15 °C | 21 °C | 0.0 mm |
| 2007 | 13 May | 17 °C | 25 °C | 0.0 mm |
| 2006 | 14 May | 14 °C | 18 °C | 0.0 mm |
| 2005 | 22 May | 18 °C | 22 °C | 0.8 mm |
| 2004 | 23 May | 6 °C | 8 °C | 2.0 mm |
| 2003 | 18 May | 15 °C | 20 °C | 0.1 mm |
| 2002 | 19 May | 15 °C | 18 °C | 1.3 mm |
| 2001 | 20 May | 12 °C | 17 °C | 0.0 mm |
| 2000 | 21 May | 11 °C | 16 °C | 0.0 mm |
| 1999 | 23 May | 12 °C | 17 °C | 0.0 mm |
| 1998 | 24 May | 10 °C | 15 °C | 0.0 mm |
| 1997 | 25 May | 9 °C | 15 °C | 0.0 mm |
| 1996 | 19 May | 15 °C | 22 °C | 0.4 mm |
| 1995 | 4 June | 14 °C | 20 °C | 0.2 mm |
How to read these numbers
- ERA5 gives daytime highs about 1–2.5 °C below nearby weather stations, so on warm race days runners felt more heat than the numbers here show; we do not correct for this.
- Edition window: the race day; 9:00 local time is taken as the typical start.
- Dates of past editions: Wikidata and Wikipedia (cs, de, en, fr, it, nl); cancelled editions (e.g. 2020–21) are not counted.
Dates and sources
Coordinates: 50.087, 14.421; ERA5 cell centred at 50.00, 14.50 (average ground height of the cell 325 m).