🇬🇧 Worthy Farm, United Kingdom
Does It Rain at Glastonbury Festival?
Across roughly 15 years of records at the site, rain falls on about 80% of Glastonbury days, averaging 1.6mm a day.
The short answer
80%
of days see 1mm+
1.6 mm
average per day
Moderate
mud risk
Expect at least one passing shower over the weekend. Paths get sloppy in places but the site stays walkable.
Rain day by day
| Day | Rain | High | Weather score |
|---|---|---|---|
| Wed 23 Jun | 1.2 mm | 20°C | 96% |
| Thu 24 Jun | 1.5 mm | 20°C | 96% |
| Fri 25 Jun | 1.3 mm | 21°C | 97% |
| Sat 26 Jun | 0.7 mm | 21°C | 98% |
| Sun 27 Jun | 3.2 mm | 20°C | 91% |
The wettest festival day on average is Sun 27 Jun at 3.2mm; the driest is Sat 26 Jun at 0.7mm. Over the main days that adds up to roughly 7.9mm.
What rain actually does to Glastonbury
Worthy Farm is clay-heavy ground that turns to thick, boot-stealing mud after sustained rain — the infamous 'Glasto mud' years (1997, 2005, 2016) are part of the festival's identity. In hot years dust, sunstroke and queues for water become the bigger issue. Wellies and sunscreen are both non-negotiable.
If the forecast turns wet
- Boots over trainers, and a spare pair of shoes sealed in a bag.
- Rain jacket for walking, poncho for standing in a crowd with a backpack.
- Pitch on the high side of the field, never in a dip, and use a groundsheet.
- Dry bags for phone, power bank, tickets and one full change of clothes.
How we know
These numbers come from the Open-Meteo historical reanalysis at the festival's coordinates, averaged day by day over about 15 years. They describe a typical edition, not the one you're going to — for the live picture, the Glastonbury forecast page updates twice a day once the event is inside the forecast window.