Lausanne Marathon: race-day weather at past editions
Lausanne Marathon: at 9:00 on race day the temperature averaged 10 °C over 30 editions from 1994 to 2025 (from 2 °C to 14 °C); rain fell during race hours (08:00–14:00) in 8 editions (27%). Source: ERA5 reanalysis (Copernicus), data to 2025.
10 °Caverage at 9:00 on race day
8 / 30editions with rain 08–14 h
0 / 30editions with ≥ 20 °C by 14:00
19 °C (2004)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 (25 October, ± 3 days) in 1991–2025:
- 10 °C — average temperature at 9:00
- 26% — share of mornings with rain 08–14 h
- 14 °C — average daily maximum
Average daily maximum on these dates: 13.6 °C in 1991–2005, 15.0 °C in 2011–2025.
Weather at past editions
| Year | Date | 9:00 | Max 08–14 | Rain 08–14 |
|---|---|---|---|---|
| 2025 | 26 October | 7 °C | 8 °C | 3.8 mm |
| 2024 | 27 October | 14 °C | 17 °C | 0.7 mm |
| 2023 | 29 October | 12 °C | 17 °C | 0.0 mm |
| 2022 | 23 October | 14 °C | 17 °C | 0.0 mm |
| 2019 | 27 October | 13 °C | 17 °C | 0.0 mm |
| 2018 | 28 October | 4 °C | 6 °C | 3.8 mm |
| 2017 | 21 October | 14 °C | 18 °C | 0.0 mm |
| 2016 | 30 October | 10 °C | 13 °C | 0.0 mm |
| 2015 | 25 October | 12 °C | 15 °C | 0.0 mm |
| 2014 | 26 October | 11 °C | 15 °C | 0.0 mm |
| 2013 | 27 October | 14 °C | 17 °C | 2.0 mm |
| 2012 | 28 October | 3 °C | 3 °C | 3.9 mm |
| 2011 | 30 October | 13 °C | 15 °C | 0.0 mm |
| 2010 | 31 October | 10 °C | 13 °C | 0.8 mm |
| 2009 | 25 October | 13 °C | 15 °C | 0.2 mm |
| 2008 | 26 October | 10 °C | 14 °C | 0.0 mm |
| 2007 | 21 October | 3 °C | 7 °C | 0.0 mm |
| 2006 | 22 October | 12 °C | 16 °C | 0.0 mm |
| 2005 | 23 October | 12 °C | 14 °C | 14.7 mm |
| 2004 | 24 October | 12 °C | 19 °C | 0.0 mm |
| 2003 | 26 October | 2 °C | 7 °C | 0.0 mm |
| 2002 | 20 October | 7 °C | 14 °C | 0.0 mm |
| 2001 | 21 October | 13 °C | 15 °C | 0.4 mm |
| 2000 | 22 October | 11 °C | 16 °C | 0.0 mm |
| 1999 | 24 October | 10 °C | 14 °C | 1.1 mm |
| 1998 | 18 October | 10 °C | 12 °C | 0.4 mm |
| 1997 | 19 October | 10 °C | 16 °C | 0.0 mm |
| 1996 | 13 October | 10 °C | 16 °C | 0.0 mm |
| 1995 | 15 October | 14 °C | 18 °C | 0.2 mm |
| 1994 | 16 October | 12 °C | 17 °C | 0.0 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 (de, en, fr); cancelled editions (e.g. 2020–21) are not counted.
Dates and sources
Coordinates: 46.533, 6.633; ERA5 cell centred at 46.50, 6.75 (average ground height of the cell 740 m).