Hamburg Half Marathon: race-day weather at past editions
Hamburg Half Marathon: at 9:00 on race day the temperature averaged 17 °C over 25 editions with known dates from 1997 to 2025 (from 12 °C to 26 °C); rain fell during race hours (08:00–14:00) in 6 editions (24%). Source: ERA5 reanalysis (Copernicus), data to 2025.
17 °Caverage at 9:00 on race day
6 / 25editions with rain 08–14 h
12 / 25editions with ≥ 20 °C by 14:00
34 °C (2019)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 (26 June, ± 3 days) in 1991–2025:
- 16 °C — average temperature at 9:00
- 29% — share of mornings with rain 08–14 h
- 21 °C — average daily maximum
Average daily maximum on these dates: 20.1 °C in 1991–2005, 22.2 °C in 2011–2025.
Weather at past editions
| Year | Date | 9:00 | Max 08–14 | Rain 08–14 |
|---|---|---|---|---|
| 2025 | 29 June | 21 °C | 23 °C | 0.0 mm |
| 2024 | 30 June | 17 °C | 18 °C | 4.7 mm |
| 2023 | 25 June | 22 °C | 27 °C | 0.0 mm |
| 2022 | 26 June | 25 °C | 28 °C | 0.0 mm |
| 2019 | 30 June | 26 °C | 34 °C | 0.0 mm |
| 2018 | 1 July | 17 °C | 22 °C | 0.0 mm |
| 2017 | 25 June | 17 °C | 18 °C | 0.1 mm |
| 2016 | 26 June | 16 °C | 19 °C | 0.0 mm |
| 2015 | 21 June | 13 °C | 16 °C | 0.0 mm |
| 2014 | 29 June | 13 °C | 18 °C | 1.9 mm |
| 2013 | 23 June | 16 °C | 18 °C | 0.1 mm |
| 2012 | 24 June | 14 °C | 15 °C | 3.6 mm |
| 2011 | 3 July | 14 °C | 15 °C | 1.4 mm |
| 2010 | 27 June | 18 °C | 24 °C | 0.0 mm |
| 2009 | 28 June | 15 °C | 19 °C | 0.0 mm |
| 2008 | 29 June | 18 °C | 22 °C | 0.0 mm |
| 2007 | 24 June | 16 °C | 20 °C | 0.0 mm |
| 2006 | 25 June | 20 °C | 27 °C | 0.0 mm |
| 2005 | 26 June | 16 °C | 21 °C | 0.1 mm |
| 2004 | 27 June | 14 °C | 19 °C | 1.7 mm |
| 2003 | 29 June | 17 °C | 22 °C | 0.0 mm |
| 2002 | 23 June | 16 °C | 20 °C | 0.0 mm |
| 2001 | 24 June | 12 °C | 16 °C | 0.0 mm |
| 2000 | 25 June | 12 °C | 14 °C | 1.1 mm |
| 1997 | 24 August | 22 °C | 30 °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.
- No dates found for 1998, 1999: these editions are not counted.
- Dates of past editions: Wikidata and Wikipedia (de, en); cancelled editions (e.g. 2020–21) are not counted.
Dates and sources
Coordinates: 53.550, 10.000; ERA5 cell centred at 53.50, 10.00 (average ground height of the cell 25 m).