Staying hydrated on the golf course: a guide to never overheat on the course

Why staying hydrated while golfing really changes your score

A round of golf at Belvédère lasts between 2.5 and 3.5 hours over 9 holes, often in full sun with no possibility of finding shade between shots. It's not an explosive effort like a sprint, but a long, repeated effort where vigilance and precision are just as important as strength.

However, as soon as fluid loss reaches 1/3 of body weight, alertness drops by approximately 1/3. On the course, this translates very concretely: a putt judged slightly short, an iron shot distance misjudged, a strategic decision made too quickly instead of being carefully considered. Dehydration, even mild, also affects muscle strength and endurance, and increases the risk of cramps at the end of the round—typically from the 7th or 8th hole onward, when fatigue and accumulated heat begin to take their toll.

Conversely, proper hydration supports two essential functions for golfers: the transport of nutrients (including glucose, the primary fuel for the brain and muscles) and the elimination of waste products generated by exertion. The body dissipates heat through perspiration, which works even more efficiently when the body has sufficient water.

Golf also involves a great deal of walking: on a hilly 9-hole course like Belvédère, between the driving range, the walks back and forth to the green, and the ball search areas, a golfer often covers 6 to 8 kilometers in a morning. This physical exertion, combined with prolonged standing and sun exposure, significantly increases water requirements compared to a sedentary activity of the same duration.

How much water should you drink during a round of golf?

For a 9-hole round, allow approximately 0.5 to 1 liter of water, adjusting according to the temperature. For an 18-hole round or in hot weather, this increases to 1.5-2 liters. Since the stomach can only absorb about 0.8 to 1 liter per hour, it's better to drink frequently, in small sips, rather than large quantities all at once.

Some practical guidelines, applicable to a 9-hole course:

• Before leaving : drink a large glass of water in the hour before departure, without forcing yourself.
• From the warm-up on the practice range : start drinking before the first shot, so you don't start out in deficit.
• Every 2-3 holes : a sip at each hole change is more than enough on a 9-hole course.
• In hot weather Add a pinch of salt to your water bottle or switch to a sports drink to compensate for the loss of minerals.

Should you wait until you're thirsty to drink water while golfing?

No. Thirst is a physiological signal that always arrives too late: by the time it appears, some dehydration has already set in, and it's difficult to correct without interrupting your activity. The rule to remember for proper hydration in golf is simple: start drinking during your warm-up, without waiting until you feel thirsty.

This recommendation, shared by the federal doctor of the French Golf Federation, applies to all levels of play — from the beginner golfer who discovers the course during an initiation, to the competitor who plays several rounds in the same day.

Water or sports drink: which to choose to stay hydrated while golfing?

Avoid highly mineralized waters like Hépar® or Contrex® during your round: they can have a mild laxative effect and disrupt your digestive comfort mid-course. A homemade sports drink (water, a pinch of salt, a little sugar) works perfectly well for those who want to stay hydrated while golfing without buying a specific product.

If you prefer a commercially available drink, check two things before choosing it: its sugar concentration (a drink that's too sweet slows down absorption and can cause digestive problems) and its taste, which should remain light even after several sips in the heat. And above all, never try a new drink on the day of a competition: try it first at the practice range or during a friendly round to make sure it suits you.

Hydration never works in isolation: it must always be considered in conjunction with solid food, especially on competition day when the body is under stress for several hours at a time. Our detailed article on How to eat during a golf competition explains how to combine solid snacks and drinks to avoid fatigue at the end of the journey.

How to stay hydrated in golf before, during and after the round?

Hydration isn't just about the hours spent on the course. It's built up in three stages, and each one counts equally to arrive in good shape at the last hole:

• Before the game Drink normally the day before and the morning of the event, but avoid excessive amounts just before departure. One and a half to two liters of water spread throughout the previous day provides a healthy base for any amateur athlete.
• During the game : this is the heart of the strategy — drinking small amounts regularly, without waiting until thirsty, adjusting according to the weather.
• After the game Continue to drink water in the clubhouse before indulging in an aperitif or a beer on the 19th hole. The body needs to replenish its fluids before adding alcohol, which exacerbates dehydration.

What are the signs of dehydration in golf?

Several warning signs should alert you during a game:

• The muscle fatigue unusual, especially towards the end of the journey.
• The decrease in concentration Strategic decisions less clear, actions less precise.
• Adapted cramps or aches and pains that appear earlier than usual.
• The irritability or disproportionate annoyance after a bad move.
• A dry mouth and a feeling of general fatigue that is more pronounced than the effort justifies.

Staying hydrated while golfing in the heat of Haute-Savoie

The climate in the Annecy region brings hot, sunny summers, especially on a course like the Belvédère, which is exposed and offers little natural shade on some holes. This configuration requires particular vigilance: it's best to always have a bottle of water handy in your bag or on your trolley, rather than relying on a break along the way.

The Belvédère's covered practice area, spread over several levels, allows you to warm up in the shelter before heading out onto the course — the ideal opportunity to start drinking from the first swings, even before the heat is felt on the most exposed holes.

The altitude of the site, near Annecy facing the Aravis mountain range, also plays a role: the air is drier than in the plains, which accelerates water loss through respiration and perspiration without always resulting in the same intense feeling of heat as in the city. This is a classic pitfall for golfers who come to play at altitude: you sweat without realizing it, and thirst arrives all the later.

Our practical routine for staying hydrated on the course

Here is the routine we recommend to all golfers at the club, from the Sunday beginner to the regular competitor:

1. A glass of water about an hour before departure.
2. A full bottle of water upon arrival at the practice area, to be consumed in small sips during the warm-up.
3. A sip at each change of hole, without waiting for thirst.
4. In hot weather, a sports drink as a supplement from the 5th hole onwards.
5. One last glass of water after receiving the card, before heading to the clubhouse.

This simple routine, tested on the practice range before being applied in competition, prevents slumps at the end of the round and allows you to maintain stable concentration until the final green. It integrates naturally into a practice routine, where you can test your drinking strategy before reproducing it on the course.

Hydration management is also linked to a broader issue along the route: it directly contributes to the stress management in golf, because a well-hydrated body more easily remains calm in the face of a missed shot.