An Australian summer can feel like one long sweat. Beach days, backyard cricket, early runs before the heat kicks in and long shifts outdoors all add up. Staying on top of hydration in hot weather is less about chugging litres at once and more about steady habits through the day.
Here is a practical guide to summer hydration, and where electrolytes fit in.
Why hot weather changes your hydration needs
When it is hot, your body cools itself by sweating. Sweat is mostly water, but it also carries electrolytes, mainly sodium, plus some potassium. On a hot day you can lose a lot more fluid than usual without noticing, especially if there is a breeze drying your skin or you are busy at work.
Replacing water is the first job. On longer, sweatier days, replacing some of those electrolytes as well makes sense, because sodium plays a role in how your body holds onto the fluid you drink.
Everyday summer hydration habits
- Start the day with a drink. A glass of water when you wake up sets you up well, especially before an early session.
- Carry a bottle. If it is with you, you will drink more of it.
- Drink little and often. Small regular sips beat downing a whole bottle when you finally feel thirsty.
- Check your colour. Pale straw coloured urine is a simple sign you are on track.
- Eat your water. Watermelon, cucumber, citrus and salads all help.
- Plan your sessions. Train early or late, and pick shade where you can.
When to add electrolytes in the heat
Water is the foundation. Electrolytes become more useful when you are sweating for longer or harder than normal:
- Training outdoors for an hour or more, or in the middle of the day.
- Working outdoors, on site, or in hot kitchens, warehouses and vehicles.
- Long days at the beach, surfing, fishing or at sport.
- Back to back sessions, or a sauna on top of training.
- If you notice salt marks on your hat or shirt.
In these situations, a drink with electrolytes alongside water helps replace sodium and potassium lost through sweat. Look for one without a load of added sugar if it is going to be part of your daily routine.
Training in the heat
Aussie heat changes how your body responds to training. Expect your heart rate to sit higher and your pace to feel harder. Ease into hot weather training over a couple of weeks, keep sessions shorter on the hottest days, and plan your hydration before, during and after. We go deeper in training in Australian heat.
Working in the heat
For tradies, shift workers and anyone working outdoors, hydration is a safety habit. Keep cold drinks within reach, take regular breaks in the shade, and follow your workplace heat guidance. Our founder is a firefighter, so we know how quickly long hot shifts catch up with you. Read hydration for shift workers for practical tips.
Know when to stop
Heat can be serious. If you or someone around you feels dizzy, confused, nauseous, stops sweating or has a bad headache in the heat, stop, get somewhere cool, and seek medical help. Hydration habits help, but they do not replace common sense and proper rest.
A summer can that actually tastes good
On a 35 degree day, nobody wants warm, flat, salty water. Uthrive is a lightly sparkling natural hydration drink made with organic Lake Deborah salt and real fruit, with no added sugar. Keep a few in the esky, the ute fridge or the work fridge. Hydrated by Nature.
Stock up with the Mixed Box, try zesty Orange, or find Uthrive in store.
FAQ
Do I need electrolytes every day in summer?
Not necessarily. On normal days, water and regular meals cover most people. Electrolytes make most sense on long, hot, sweaty days.
How much water should I drink in hot weather?
It varies with your size, activity and the conditions. Drink regularly, use thirst and urine colour as guides, and drink more when you are active in the heat.
Are sports drinks good in hot weather?
Some are high in added sugar. If you want electrolytes without that, look for a no added sugar option. Read why more people are choosing no added sugar.
What is the best time to drink electrolytes in summer?
After sweaty sessions and during long days outdoors. See our guide to the best time to drink electrolytes.