Deshidratación is one of the main causes of illness at festivals. They usually take place in the summer and the warm, sunny weather - and dancing - can mean you lose more fluid through sweating. Also, alcohol is a diuretic, meaning it can make you pee more. It’s also easy to forget to drink water when you’re having fun, especially if you don’t have a refillable bottle with you.

However, being dehydrated at a festival can be dangerous and lead to fainting, disorientation, heatstroke, or even fits or convulsiones. If left untreated, you may end up needing to spend time in the medical tent.

What are the symptoms of dehydration?

There are many signs that you haven’t drunk enough agua. You may feel thirsty, tired or dizzy, or have dark yellow, strong-smelling urine. You may pee less than usual or have a dry mouth. You may also have a dolor de cabeza, feel generally unwell or feel confused or ansioso.

Dehydration can happen more easily if you have been in the sun, drunk alcohol or have been sick or had diarrhoea. Conditions such as diabetes or certain medications, such as antidepresivos, can also leave you at risk of dehydration¹. Illegal drug use can also lead to dehydration².

Stick to a routine

Setting a routine can help you remember to drink agua at a festival. Keep big bottles of water in your tent so that when you wake up, you can have a couple of glasses first thing and refill a smaller bottle to carry with you.

It can help to set an alarm or reminder on your phone or watch to have water mid-morning and mid-afternoon. Try to drink when you eat at lunch or dinner too. If you’re moving around a lot or dancing, you’ll need to drink more.

Carry a refillable water bottle

Bringing your own refillable water bottle can save you money and is better for the environment than buying plastic water bottles. You can get foldable water bottles or pouches, which can be easier to carry. You can also attach them to a belt or bag using a carabiner, a strong metal clip. Festivals allow you to bring an empty bottle and refill it on site, as long as it isn’t made of glass.

Remember to rest

It’s important to take breaks in the shade when you’re hanging out in the sun all day or walking to various stages. Your body will need to rest and recharge. If you lie down in the shade and drink some water, you’ll feel much better.

If you’re dehydrated, sit down, drink plenty of water and have a rest. Dehydration is treated by replenishing the fluid level in the body. You can also use rehydration sachets - which can be dissolved in water - to build up your body’s electrolytes and salts. If you feel unwell, it’s important to seek medical help to prevent severe complications. You can get help at the medical tent, or via festival staff who are on site to help.

1. Kalisch Ellet et al: Increased risk of hospital admission for dehydration or heat-related illness after initiation of medicines: a sequence symmetry analysis.

2. Puga et al: Effects of drugs and excipients on hydration status.