Why you shouldn't train in the intense midday sun!
June 9, 2026
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When the body is unconsciously overstressed.
Outdoor workouts are becoming increasingly popular. Whether it's functional training, boot camp, jogging, or individual personal training, exercising outdoors offers numerous benefits for body and mind.
In Zug, in particular, many people use the beautiful lakeside paths, parks, and green spaces for their outdoor training. However, especially in summer, there's an important point to consider:
The time between 11:00 AM and 3:00 PM is often the least favorable time of day for an intense outdoor workout.
Why is the midday sun problematic?
The human body constantly tries to maintain its core temperature at around 37 °C.
During a workout, muscles produce additional heat. At the same time, the body tries to release this heat through sweating and increased blood flow to the skin.
However, in direct sunlight, the body must contend with several stresses simultaneously:
- High ambient temperatures
- Direct UV radiation
- Additional heat generation from exercise
- Increased fluid loss
As a result, the strain on the heart, circulatory system, and metabolism increases significantly.
Outdoor Workouts in Zug – the benefits of the right training time
Zug offers ideal opportunities for outdoor training. Its location by Lake Zug, numerous green spaces, and beautiful running routes make the region perfect for outdoor activity.
However, even the most beautiful training location can become challenging in extreme heat.
Therefore, most professional outdoor workouts in Zug are preferably held in the morning or evening.
Benefits:
- more comfortable temperatures
- lower UV exposure
- improved performance
- reduced cardiovascular strain
- improved training quality
Increased strain on the cardiovascular system
Training in the midday heat significantly increases the heart's workload.
On the one hand, muscles require oxygen and energy. On the other hand, blood is transported to the skin to release excess heat.
This can lead to the following symptoms:
- Dizziness
- Fatigue
- Decreased performance
- Headaches
- Circulatory problems
This can significantly impair training quality, especially during intense outdoor workouts.
Fluid loss is often underestimated
Many people don't drink enough.
On a hot summer day, one to two liters of fluid can quickly be lost per hour during an outdoor workout.
Through sweat, the body loses important minerals such as:
- Sodium
- Potassium
- Magnesium
Even a slight fluid deficiency can significantly reduce performance.
Sunstroke and Heatstroke
Among the biggest risks during outdoor workouts in the midday sun are sunstroke and heatstroke.
Sunstroke often results from direct sun exposure to the head and neck.
Possible symptoms:
- Headaches
- Dizziness
- Nausea
- Concentration problems
Heatstroke is significantly more dangerous and constitutes a medical emergency.
Do you burn more fat in the heat?
Many people believe that training in high heat automatically burns more fat.
In fact, the body primarily loses water first.
At the same time, the following often decrease:
- Training intensity
- Strength performance
- Concentration
- Recovery
As a result, the actual training effect is often worse than at moderate temperatures.
When is the best time for outdoor workouts?
Early in the morning
Between 6:00 AM and 10:00 AM
Benefits:
- Fresh air
- More pleasant temperatures
- Lower UV radiation
- high performance
In the evening
Between 6:00 PM and 9:00 PM
Advantages:
- cooler environment
- more relaxed workout
- less strain on the cardiovascular system
Tips for your outdoor workout in summer
If you train outdoors in summer:
- drink enough water
- wear light and breathable clothing
- use sunscreen
- wear headwear
- prefer shade
- adjust intensity to the temperature
Outdoor Workouts and Personal Training in Zug
At M&G Coaching in Zug, we regularly offer outdoor workouts and personal training in the fresh air.
We pay particular attention to:
- the optimal training time
- individual physical capacity
- weather conditions
- safe workout design
This way, you can benefit from all the advantages of an outdoor workout without unnecessarily straining your body.
Conclusion
Outdoor workouts in Zug are an excellent way to combine fitness, health, and nature.
However, the intense midday sun between 11:00 AM and 3:00 PM is usually not the ideal time for intense training sessions. High temperatures, strong UV radiation, and increased fluid loss can reduce performance and strain your health.
Those who plan their outdoor workouts smartly and prefer to train in the morning or evening usually achieve better results while simultaneously protecting their body.
Everyone reacts differently to heat. That's why at M&G Coaching in Zug, every outdoor workout is individually tailored to personal requirements, goals, and current physical capacity.
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