Festival Weather Odds

Glastonbury Festival: what was the weather like at past editions?

At 16 of 27 editions of Glastonbury Festival from 1992 to 2025 (59%), at least one festival day had rain (≥ 1 mm); a day of 30 °C or more came at 0 of 27 editions. Source: ERA5 reanalysis (Copernicus), data to 2025.

How it works ↓

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

Calculated 3 November 2026 · weather: ERA5 1992–2025 · edition dates checked 2 November 2026

16 / 27editions with at least one rainy day
37%of festival days rainy
2 / 27editions with mud (≥ 40 mm incl. the week before)
0 / 27editions with a day ≥ 30 °C
7 °C (2000)coldest night
3 mmmedian rain per edition

Climate of the usual dates

If the next edition falls on its usual dates (25–27 June), the weather on those calendar days in 1991–2025 gives these odds:

Average daily maximum on these dates: 19.7 °C in 1991–2005, 21.2 °C in 2011–2025.

Glastonbury Festival’s fame as a mud festival rests on a mere handful of years. “Mud”, under the site’s rule (40 mm or more across the festival days and the week before), has built up at only 2 editions out of 27, and the median rainfall per edition is just 3 mm: rain here is frequent (37% of festival days), but usually light. This is the weather of past editions and the climate of the usual dates according to the ERA5 reanalysis; forecasts for specific days come from the weather services.

Mud and heat at past editions

The wettest was 2007: on 22–24 June it rained all 3 days, 24 mm in total. There has never been a hot day (a day of 30 °C or more); the closest was 2019 with 29 °C. The coldest night was 7 °C (2000). You will need a raincoat more often than wellies.

What the usual weather means for 2027

Tickets are valid from 23 to 27 June 2027. The site counts the last 3 days of the programme, 25–27 June, which fall exactly on the usual dates. Based on the 1991–2025 climate, they have a 63% chance of at least one rainy day, an average daytime high of 20 °C, and a night below 8 °C happens in 6% of cases. There is no forecast for these days yet.

Weather at past editions

YearDatesRainy daysRainMaxNight minNote
202527–29 June1 / 32 mm25 °C13 °Clast 3 days of 25–29 June
202428–30 June0 / 30 mm21 °C8 °Clast 3 days of 26–30 June
202323–25 June0 / 31 mm27 °C14 °Clast 3 days of 21–25 June
202224–26 June2 / 39 mm19 °C11 °Clast 3 days of 22–26 June
201928–30 June0 / 30 mm29 °C14 °Clast 3 days of 26–30 June
201723–25 June0 / 31 mm20 °C13 °Clast 3 days of 21–25 June
201624–26 June3 / 310 mm18 °C11 °Clast 3 days of 22–26 June
201526–28 June1 / 32 mm20 °C12 °Clast 3 days of 24–28 June
201427–29 June2 / 318 mm19 °C11 °C—
201328–30 June0 / 30 mm21 °C13 °C—
201124–26 June2 / 35 mm26 °C9 °C—
201025–27 June0 / 30 mm26 °C9 °C—
200926–28 June1 / 37 mm24 °C12 °C—
200827–29 June2 / 33 mm19 °C12 °C—
200722–24 June3 / 324 mm18 °C12 °C—
200524–26 June1 / 317 mm21 °C13 °C—
200425–27 June2 / 311 mm19 °C10 °C—
200327–29 June2 / 33 mm25 °C9 °C—
200228–30 June0 / 30 mm19 °C8 °C—
200023–25 June0 / 31 mm16 °C7 °C—
199925–27 June2 / 36 mm24 °C11 °C—
199826–28 June2 / 323 mm18 °C12 °C—
199727–29 June3 / 37 mm17 °C10 °C—
199523–25 June0 / 30 mm22 °C11 °C—
199424–26 June1 / 39 mm24 °C11 °C—
199325–27 June0 / 30 mm23 °C9 °C—
199226–28 June0 / 30 mm26 °C11 °C—

How to read these numbers

Dates and sources

Coordinates: 51.150, -2.587; ERA5 cell centred at 51.25, -2.50 (average ground height of the cell 94 m).