How to Play Tennis in the Australian Summer Heat (Without Cooking Yourself)

Australian summer tennis is no joke. Mid-January in Sydney, Brisbane, Adelaide, or Perth routinely hits 38 to 42 degrees on the court surface, and that is the air temperature, not the radiating heat off the asphalt. Most Aussie adults stop playing entirely between Christmas and February. They do not have to. Seven habits let you keep playing through the worst of it without ending up in hospital.

1. Move your games to the right time of day

The single biggest change. The peak heat in Australian cities runs from 11am to 4pm. Two windows are fine all summer:

• Early morning: 6am to 9am. The court is cool, the air is dry, the courts are quiet. You will sleep better afterwards.
• Late evening: from 6pm in southern states (Sydney, Melbourne, Adelaide), from 5pm in tropical states (Brisbane, Perth, Darwin). Many public courts have lights and stay open until 10pm.

If your tennis is currently a Saturday 2pm game, you are choosing the worst possible time. Switch to Sunday 7am and your enjoyment goes up 5x.

2. Hydrate before, during, and after

Most adult heat-related tennis issues come from being dehydrated before play, not during. Six hundred millilitres of water in the hour before play, then 250ml per change of ends, then another 500ml in the 20 minutes after play. That is the floor.

If you sweat heavily, add electrolytes. Hydralyte sachets, Powerade, or a homemade mix (water + pinch of salt + squeeze of lemon + half a teaspoon of sugar) all work. Plain water for hours in 38-degree heat actually dilutes your sodium and makes you feel worse, not better.

Signs you are already in trouble: cramps in the calves or hands during play, sudden dizziness when you turn quickly, a sharp drop in performance after one long rally. Stop. Get into shade. Drink. Sit down.

3. Pick the right court

Not all courts are equally hot. The hottest are uncovered asphalt and rebound ace. The coolest are clay (rare in Australia outside specific clubs), grass (rarer), and indoor courts (most common in cooler Aussie climates and some Sydney/Melbourne clubs).

If you have an indoor court within a 20-minute drive, summer is when to use it. The premium for indoor courts in summer ($25 to $50 per hour) is often worth it for the air-conditioning alone.

For outdoor play, look for courts with shade trees on at least one side. Even partial shade for changeovers cuts your heat load significantly.

4. Wear the right clothes

• White or pale colours. They reflect heat. Dark colours absorb it.
• Polyester sports fabric, not cotton. Cotton holds sweat and weighs you down. Modern polyester wicks away sweat and dries fast.
• Wide-brim hat or visor. Most heat enters your body through your face and head.
• Sunglasses. Squinting is exhausting. Polarised lenses help a lot.
• Sunscreen, SPF 50, applied 20 minutes before play, reapplied at the halfway mark.
• A clean spare shirt in the bag. Changing into a dry shirt at the half-time changeover is one of the great underrated tennis hacks.

5. Carry a small ice towel

Wet a small face towel, wring it out, freeze it overnight in a zip-lock bag. Take it to the court in a cooler with an ice block. Apply it to the back of your neck during changeovers. The cooling effect is immediate and dramatic.

The wrist is the second-best place to apply cold. The radial artery runs close to the surface, and cooling the blood passing through it lowers your core temperature quickly.

This is what professional players do during heat-rule breaks at the Australian Open. It works.

6. Shorten the match

A 90-minute match in 38-degree heat is the leading cause of summer tennis disasters. Switch formats:

• Play Fast4. Faster sets, less time on court.
• Play a single set instead of best-of-three.
• Schedule a 50-minute hit instead of an hour, with a long warm-down in the shade.
• Take more changeovers and use them all. The 90-second changeover sit is a recovery tool.

Ego will tell you to play a full match. Heat will not care.

7. Know when to call it

Tennis Australia uses a "heat stress scale" at professional events. The pros stop playing at certain thresholds. Yours should be lower than theirs, because they are full-time athletes and you are not.

Stop playing immediately if:

• You stop sweating in heat (sign of severe heat exhaustion, very dangerous).
• You feel nauseous.
• You get muscle cramps that do not stop with rest and water.
• You feel dizzy when you turn or stop suddenly.
• Your heart rate stays high (over 130 bpm) when you sit down for 5 minutes.

Don't play through any of these. Get into air-conditioning. Drink electrolytes. If symptoms persist past 30 minutes, see a doctor.

Children, older players, and people on certain medications

Three groups should be extra cautious in Australian summer heat:

• Children under 13. They overheat much faster than adults. Cap their summer play at 30 to 45 minutes and only in cooler windows.
• Adults over 65. Heat tolerance drops sharply with age. The cooler windows become not just preferable but essential.
• People on blood pressure medications, antihistamines, or diuretics. These all affect your body's heat regulation. Talk to your GP before playing in extreme heat. This is real, not a disclaimer.

What to keep in your summer tennis bag

• Two water bottles, one with electrolytes
• Hat or visor
• Sunglasses
• SPF 50 sunscreen
• Spare shirt
• Small towel
• Frozen face towel in a zip-lock bag
• A banana or two (potassium for cramp prevention)
• Tennis grip overgrip (sweat eats grips alive in summer)

The summary

Australian summer tennis is doable for the whole season if you change when you play, what you wear, how much you drink, and how long you stay on court. Move to early-morning or evening windows, hydrate seriously, dress for the heat, keep a cold towel handy, shorten matches, and stop if your body tells you to.

Five hundred hours of summer tennis a year sounds aggressive until you realise it is only an hour every second day. Done right, you can play through January, hit your stride in February, and arrive at the autumn cooler in great form.

For more on staying injury-free, see our guide on tennis injuries and recovery.