Rock Werchter: what was the weather like at past editions?

At 19 of 30 editions of Rock Werchter with known dates from 1993 to 2025 (63%), at least one festival day had rain (≥ 1 mm); a day of 30 °C or more came at 5 of 30 editions. Source: ERA5 reanalysis (Copernicus), data to 2025.

Data updated: 2 November 2026 · Sources, licences and data

Calculated 3 November 2026 · weather: ERA5 1993–2025 · edition dates checked 2 November 2026

19 / 30editions with at least one rainy day

33%of festival days rainy

4 / 30editions with mud (≥ 40 mm incl. the week before)

5 / 30editions with a day ≥ 30 °C

8 °C (2011)coldest night

6 mmmedian rain per edition

Climate, not a forecast: these are statistics of past weather, not a forecast for the next edition.

Climate of the usual dates

If the next edition falls on its usual dates (1–4 July), the weather on those calendar days in 1991–2025 gives these odds:

77% — chance of at least one rainy day
41% — share of rainy days
23 °C — average daily maximum
17% — chance of a day of 30 °C or more
3% — chance of a night below 8 °C

Average daily maximum on these dates: 21.9 °C in 1991–2005, 22.9 °C in 2011–2025.

Weather at past editions

editions with at least one rainy day · Rain, mm

Year	Dates	Rainy days	Rain	Max	Night min
2025	3–6 July	2 / 4	21 mm	26 °C	10 °C
2024	4–7 July	2 / 4	4 mm	20 °C	11 °C
2023	29 June – 2 July	2 / 4	9 mm	22 °C	12 °C
2022	30 June – 3 July	1 / 4	11 mm	24 °C	11 °C
2019	27–30 June	0 / 4	0 mm	33 °C	12 °C
2018	5–8 July	0 / 4	0 mm	28 °C	15 °C
2017	29 June – 2 July	2 / 4	18 mm	22 °C	12 °C
2016	30 June – 3 July	4 / 4	13 mm	19 °C	12 °C
2015	25–28 June	0 / 4	0 mm	26 °C	11 °C
2014	3–6 July	3 / 4	13 mm	26 °C	11 °C
2013	4–7 July	0 / 4	0 mm	27 °C	14 °C
2012	28 June – 1 July	1 / 4	7 mm	30 °C	14 °C
2011	30 June – 3 July	0 / 4	1 mm	20 °C	8 °C
2010	2–4 July	1 / 3	1 mm	34 °C	16 °C
2009	2–5 July	1 / 4	6 mm	31 °C	14 °C
2008	3–6 July	2 / 4	9 mm	23 °C	11 °C
2007	28 June – 1 July	2 / 4	8 mm	24 °C	12 °C
2006	29 June – 2 July	0 / 4	0 mm	29 °C	11 °C
2005	30 June – 3 July	2 / 4	11 mm	27 °C	14 °C
2004	1–4 July	2 / 4	12 mm	19 °C	12 °C
2003	26–29 June	0 / 4	0 mm	27 °C	12 °C
2002	28–30 June	0 / 3	1 mm	19 °C	9 °C
2000	30 June – 2 July	2 / 3	14 mm	24 °C	13 °C
1999	2–4 July	1 / 3	6 mm	26 °C	14 °C
1998	3–5 July	0 / 3	1 mm	20 °C	11 °C
1997	5–6 July	2 / 2	8 mm	19 °C	11 °C
1996	5–7 July	2 / 3	11 mm	18 °C	8 °C
1995	1–2 July	1 / 2	8 mm	26 °C	16 °C
1994	2–3 July	0 / 2	0 mm	31 °C	18 °C
1993	3–4 July	0 / 2	0 mm	28 °C	14 °C

How to read these numbers

ERA5 is a reanalysis on a 0.25° grid (about 25 km): it counts slightly more light-rain days than nearby weather stations (by about 5–7 percentage points) and gives daytime highs about 1–2.5 °C below station readings, so real hot days were hotter than shown here.
Edition window: the official programme days (main festival days, without camping or warm-up days before the start).
“Mud” means at least 40 mm of rain over the festival days and the week before.
No dates found for 2001: these editions are not counted.
Dates of past editions: Wikidata and Wikipedia (de, en, fr, it, nl); cancelled editions (e.g. 2020–21) are not counted.

Dates and sources

Coordinates: 50.968, 4.684; ERA5 cell centred at 51.00, 4.75 (average ground height of the cell 22 m).

Rock Werchter: what was the weather like at past editions?

Climate of the usual dates

Weather at past editions

How to read these numbers

Dates and sources

Related pages