Hydration and shade breaks for people working outdoors in heat

If you work outside in hot weather, whether on a building site, in a garden, on a delivery round, on a farm, at an outdoor event or on a roof, you'll know how the day can run away from you. You get into a rhythm, the job needs finishing, and before you know it you haven't had a drink in hours and you're feeling dizzy, tired or headachy.

Heat illness can creep up on anyone, including people who are fit and used to the work. Drinking regularly and taking breaks in the shade are some of the simplest ways to reduce the risk, but they're also the easiest things to forget when you're busy. This guide covers practical ways to build those habits into a working day.

A safety note first: this is general, common-sense guidance, not medical advice. Follow your employer's heat plan and your local health and safety guidance. If you or someone you work with shows signs of serious heat illness, such as confusion, fainting, a very high temperature, or hot skin that has stopped sweating, treat it as an emergency and call for help straight away.

Why hydration slips at work

• Thirst isn't an early warning. By the time you feel really thirsty, you may already be behind.
• Work comes in chunks. "I'll drink when I finish this bit" turns into an hour.
• Water isn't always close by. If the bottle is in the van, it's easy to skip.
• Breaks feel like lost time, especially on piece rates or tight deadlines.
• Heat builds gradually. Late morning and afternoon can be much harder than the start of the day.

Build the habit around the day, not just the temperature

The most reliable approach is to make drinking and breaks part of the schedule, rather than something you do when you remember.

Before you start

• Have a drink with breakfast
• Fill your water bottles, and if you can, bring more than you think you'll need
• Check the forecast so you know when the hottest part of the day will be

Sample reminder: "Before you leave: fill both water bottles and pack your hat and sunscreen."

Regular drink breaks

Pick an interval that fits your work, such as at the top of each hour, and stick to it even when you don't feel thirsty. Your employer or local guidance may recommend how often. Follow that if it exists.

Sample reminder: "Water break. Have a proper drink, not just a sip."

Shade breaks

Rest in the shade gives your body a chance to cool down. Plan them for the hottest part of the day.

Sample reminder: "Shade break: 10 minutes out of the sun. Check on your crew too."

Lunch

Make it a real break, out of the sun if possible, with food and a refill of your water.

Sample reminder: "Lunch. Get out of the sun and refill your bottles before you start again."

End of the day

Keep drinking after work. Evening is also a good time to get ready for tomorrow.

Sample reminder: "Refill bottles and put them in the fridge for tomorrow."

Protect yourself from the sun

Heat and sun go together. A few habits help:

• A hat with a brim, or neck protection
• Light, loose clothing where your work gear allows it
• Sunscreen, reapplied during the day
• Sunglasses or safety glasses with UV protection where appropriate

Sample reminder: "Midday: reapply sunscreen to your face, neck and arms."

Look out for each other

On a hot day, it's easy to miss warning signs in yourself, and easier to notice them in someone else. Agree as a team to check on each other at breaks. Common early signs of heat-related illness include headache, dizziness, feeling sick, heavy sweating, cramps and unusual tiredness. If someone seems unwell, get them into the shade, help them cool down, give them water if they're able to drink, and get help if they don't improve quickly or show serious signs.

If you manage a team, it's worth making breaks an expectation, not something people have to ask for.

Take extra care if

• You're new to the job or just back from time off, as your body may need time to get used to working in heat
• You take medication that affects how you handle heat or fluids. Ask your doctor or pharmacist
• It's the first hot spell of the year
• You're wearing heavy protective clothing
• You're working alone, so agree regular check-ins with someone

A hot-day checklist

• Water bottles filled and more available on site
• A drink at regular intervals, whether or not you're thirsty
• Shade breaks planned for the hottest hours
• A proper lunch break out of the sun
• Hat, sunscreen and light clothing
• Team check-ins at every break
• A plan for anyone working alone
• Know the signs of heat illness and when to call for help

How ReminderIt helps

ReminderIt reminds you with a real phone call at the times you set, plus a WhatsApp message with Done and Snooze buttons. On a noisy site or with your hands full, a vibrating phone in your pocket with a voice telling you it's water break time is far harder to ignore than a silent notification.

You set it up by chatting on WhatsApp in plain words, for example: "Remind me every weekday at 10am, 12pm, 2pm and 4pm: water break." On cooler days, pause it with a quick message, and resume it when the heat returns. You can choose calls and WhatsApp, calls only, or WhatsApp only for each reminder.

If you look after a team, or someone who works alone, you can add up to five people you remind. Once they've accepted, the break reminders ring their phones, and you can get an alert if someone misses a call. That's useful for checking in on a lone worker. Reminder calls can be in any of 14 languages, including English, Spanish, Hindi and Tamil, which helps on mixed-language crews.

There's a 7-day free trial, and no card is needed. If you'd like help setting up hot-weather break reminders for yourself or your team, message us on WhatsApp.