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Scorching Beats and Sweltering Suns: How to Survive Glastonbury’s 2025 Heatwave Without Melting into the Mud

Festival goers sit listening to music

Just in time for Glastonbury’s iconic stretch of music, mud, and mayhem from June 25 to 29, the summer sun has decided to make a dramatic entrance.

With temperatures expected to hit 25°C, the usual Wellington-boot-wearing crowd might want to swap their ponchos for parasols. And while the lineup is hot, the weather might be even hotter.

Dr Donald Grant, GP and Senior Clinical Advisor at The Independent Pharmacy, has weighed in with timely, no-nonsense advice for anyone braving the Glastonbury fields this year. His prescription? Pack smart, hydrate wisely, and dress like you’ve got survival in mind—not just fashion.

Packing for the Apocalypse (or at least Worthy Farm)

“One of the UK’s biggest summer festivals is almost here,” Dr Grant said, “and with the Met Office predicting temperatures of up to 25 degrees Celsius, it’s important for attendees to understand the risk of heat-related illnesses and how they can avoid these conditions.”

Forget glitter and flower crowns—this year, the festival packing list reads more like a desert survival guide. “Handheld fans can be a lifesaver, providing quick and easy relief from the surging temperatures,” said Dr Grant. And that refillable water bottle you’ve been meaning to buy? “ESSENTIAL,” he stressed, “for maintaining healthy hydration levels throughout the day.”

When the sun dips behind the hills and the basslines give way to breezy evenings, you’ll need more than vibes to stay warm. “Temperatures quickly drop in the evening,” Dr Grant reminded, “so while it’s important to pack loose-fitting clothing for the day, be sure to include some heavier clothing for the nighttime in order to remain warm.”

Also, don’t skimp on the suncream. “Suncream is another must-have ahead of the predicted heatwave… it should be reapplied every 2 hours, but this could be more frequent at a festival where sweating is more excessive.”

Booze vs. Water: The Real Headliner Battle

Glastonbury is as much about hydration stations as it is headline acts—and no, lager doesn’t count. “Hot weather combined with alcohol can increase the speed of dehydration exponentially,” warned Dr Grant. “It’s crucial to manage water intake to avoid falling ill and missing out on the festival fun.”

Long hours under an unrelenting sun can dry you out faster than a dodgy set on the Pyramid Stage. “While it can be difficult to locate shade at a festival,” he advised, “it’s best to try and find locations with less sun when you’re not attending a musician’s set.”

Dress for the Weather You Have, Not the Selfies You Want

That metallic crop top might earn Instagram likes, but Dr Grant urges function over fashion: “Wearing the right clothing can have a positive impact on the body’s ability to regulate heat and maintain a safe temperature.”

Light, loose-fitting clothes, along with a hat and sunglasses, are the ticket to staying cool and conscious. “Dressing appropriately during a heatwave helps protect health, enhances comfort, and ensures attendees can enjoy the festival safely.”

Know the Signs, Stay in the Game

Even seasoned festival-goers need to know the warning signs of trouble. “Symptoms of dehydration include dizziness, increased thirst, a dry mouth, and dark yellow-coloured urine,” said Dr Grant. “This is why it’s so important to seek shade and prioritise hydration.”

He also flagged the risk of illness-induced dehydration. “Diarrhoea can reduce the electrolyte balance and hydration levels in the body,” he said, recommending over-the-counter remedies like Dioralyte Sachets to help replenish what’s lost.

And then there’s heat stroke—the real party killer. “This is an incredibly dangerous heat-related illness that can be fatal,” he cautioned.

“Symptoms include high body temperature, altered behaviour, nausea, rapid heart rate, and headache. I recommend anyone suffering from heat stroke to seek medical attention at the event.”

Sun, Sweat, and Smart Decisions

With Glastonbury in full swing and the sun determined to steal the spotlight, survival isn’t just about making it to Sunday’s headliner—it’s about pacing yourself, listening to your body, and remembering that no artist is worth a medical tent visit.

“By dressing appropriately, managing hydration and packing essentials,” Dr Grant concluded, “festival attendees can enjoy the magic of Glastonbury without developing any heat-related illnesses.”

The music might be electric, but staying grounded—literally and figuratively—could be your best encore yet.

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