Friends at the beach in the summer
Body & Soul
28.05.2026 Christin Müller 763

At what UV index should I stop going out in the sun?

Wouldn't it be nice to just enjoy the sun without having to worry about protection? The UV Index is here to help: a handy number that tells you just how intense the current sun's rays really are.

​​​​​​​Text: Patrizia Lehmkuhl, Edited by: Christin Müller 

Summary: Key Points at a Glance 

The UV Index is your free, daily-updated early warning system for sunburn, acute skin damage, and long-term risks such as skin cancer. You should consistently use sunscreen whenever the index reaches a value of 3 or higher. By knowing when protection is necessary, you can plan your outdoor activities wisely and avoid unnecessary risks. 

Read more in this article:

What is the UV index? 

UV stands for ultraviolet radiation. The UV Index (UVI) summarizes the intensity of UV radiation at a given location in an easy-to-understand number and indicates how quickly you are at risk of getting sunburned. The higher the number, the greater the risk of sunburn, skin aging, eye damage, and skin cancer. 

What is today's UV index?

Would you like to know what the daily UV index is in your area? The nationwide solar UV monitoring network measures the amount of UV radiation reaching the ground at over 40 locations across the country. You can find the latest measurement data on the BfS website.

What factors influence the UV index? 

Various factors determine the current UV index: 

  • Sun's altitude: The higher the sun is in the sky, the stronger the UV radiation.
  • Ozone and airborne particles: Higher levels of ozone and aerosols reduce radiation; lower levels result in higher readings.
  • Note: Water , sand, snow, or light-colored facades can increase the strain.
  • Cloud cover: Reduces UV radiation but does not provide complete protection—UV rays can still penetrate clouds.

Tip: You can find out the exact value by checking many weather services or using a UV index card. 

How do you use the UV index in practice? 

The UV index is not just an abstract number; it helps people take specific protective measures. The WHO has clearly defined this: 


Source: WHO, Graphic: pme Familienservice

Even brief exposure to the midday sun can otherwise lead to painful redness and blistering—and, over the long term, also increase the risk of skin cancer and eye damage.

Sunscreen SPF: What You Need to Know 

The sun protection factor (SPF) on sunscreen indicates how much longer you can extend your natural protection time after applying the product without getting sunburned. The Federal Office for Radiation Protection recommends: 

  • When the UV index reaches 3 or higher: Sun protection for everyone! 
  • Children: SPF 30 or higher 
  • Adults: SPF 15 or higher 

Even more important than choosing the right SPF is how you apply it: 

  • Amount: About 5–6 tablespoons for the whole body. 
  • Reapply sunscreen: Every 2 hours, as well as after swimming or drying off. 

Your skin type is key: Very fair skin can burn after just a few minutes. Remember: It’s important to apply sunscreen consistently and to supplement this with protective clothing and staying in the shade!

Which sunscreen is right for me?

Not sure which sunscreen is right for you or how to best protect your skin from the sun? In our in-depth article, you’ll learn what matters most when it comes to proper sun protection. 

 

Myths About the Sun and Sun Protection – Debunked 

“It’s cloudy, so I’m safe.” – Wrong. Clouds reduce UV radiation, but they don’t block it completely. 

“Tanned skin doesn’t need protection.” – False. Darker skin offers some additional natural protection, but not complete protection. 

“Sunscreen alone is enough.” – Wrong. The best approach is a combination of sunscreen, clothing, shade, and adjusting the amount of time spent outdoors. 

“Using sunscreen leads to vitamin D deficiency.” – False. There is no scientific evidence to support this claim. 

Practical tips for sun protection in your daily life 

  • Use UV information (from weather services, UV index charts) to adjust your daily plans—such as what to wear, how long to stay outside, and when to engage in outdoor activities. Handy tip: An UV index chart shows you the exact UV index value for your current location. 
  • When the UV index is high: Try to schedule outdoor activities outside of the hours between 11 a.m. and 3 p.m. 
  • Extra protection is necessary, especially in conditions with strong glare (water, sand, snow, bright surroundings, or in the mountains). 
  • Take special care to protect children—their skin is very sensitive. 

Bottom line: The UV index protects your skin 

The UV Index is your reliable guide for sunny days. Experts recommend consistent sun protection starting at a UVI of 3: apply plenty of sunscreen, reapply it regularly, seek shade, and keep a close eye on children.

Don't be fooled by myths: even clouds and pre-tanned skin don't give you a free pass. Use the UV index to plan your day, avoid the intense midday sun, and enjoy the summer worry-free. 

In short: By checking the UV index, you can protect yourself and others in a smart way and enjoy the sun without worry. 

FAQ: Frequently Asked Questions About the UV Index & Sun Protection 

At what UV index should I stop going out in the sun?

It doesn’t necessarily mean “no longer,” but once the UV index reaches 8 (very high), you should avoid direct sunlight, seek out shaded areas, and take extra precautions (high SPF, protective clothing, a sun hat, and sunglasses). Once the UV index reaches 3, you should consistently use sunscreen.

Do I need sunscreen when it's cloudy?

Yes. Clouds block some UV rays but do not provide complete protection. Even on cloudy days, UV radiation can still cause skin damage—sun protection is recommended, especially when the UV index is 3 or higher.

What does the sun protection factor (SPF) on sunscreen mean?

The SPF indicates how much longer you can stay in the sun after applying sunscreen without getting sunburned, compared to your natural protection time. For example, SPF 30 theoretically extends your natural protection time by a factor of 30.

What SPF ratings are recommended?

From UVI 3: Sunscreen for everyone. Recommended: SPF 30 or higher for children; SPF 15 or higher for adults. In cases of high intensity (UVI ≥6), experts recommend SPF 30–50+ depending on skin type and duration of exposure.

How much sunscreen should I apply?

Guideline: Approximately 2 mg/cm² of skin—which is equivalent to about 5–6 level tablespoons for the entire body. In practice: Apply generously; do not use just a few sparing dabs.

How often do I need to reapply the sunscreen?

At least every 2 hours, as well as immediately after swimming, heavy sweating, or drying off.

Is sunscreen alone enough?

No. The best protection comes from a combination of sunscreen, protective clothing (UV-protective clothing), shade, a sun hat, and sunglasses, as well as planning your schedule (avoiding the midday hours).

What is the difference between UVA and UVB?

In short: UVA rays penetrate deeper and accelerate skin aging; UVB rays cause sunburn and are a major factor in skin cancer risk. Both are harmful and should be minimized.

What special considerations apply to children and babies?

Babies (under 1 year old): Avoid direct sunlight; keep them in the shade and dress them in protective clothing. For children: Use SPF 30 or higher, reapply frequently, and take extra precautions between 11 a.m. and 3 p.m. and in reflective environments (water, sand, snow).

How can I use the UV index to help me plan my day?

Check the UV index in the morning or throughout the day (weather services, BfS/DWD). Plan activities for the morning or later in the day, and choose appropriate protective measures based on the UVI level (e.g., UVI 3–5 → SPF 30, shade; UVI 6–7 → SPF 30–50, short stays; UVI ≥8 → stay in the shade, protective clothing, high SPF).

Sources & Recommended Reading 




 

zero How ILB makes employees crisis-proof

The ILB building in Potsdam
Leadership & HR
04.11.2024 Isabel Hempel 7301

Strengthening team resilience: How ILB makes employees crisis-proof

In this interview, Kathleen Wiesener, HR Development Officer at the Investitionsbank des Landes Brandenburg (ILB), sheds light on the importance of a strong team spirit and how targeted measures such as coaching, feedback culture and external moderation help to strengthen employees. She explains which strategies ILB uses to create a resilient working environment in which employees receive the support they need to be successful in crisis situations.

What does ILB mean by team resilience and why is it particularly important for the company?

For us, team resilience means the ability of a team to overcome challenges, crises or stressful situations together and emerge stronger. This includes cohesion, mutual support, good communication and trust within the group. A resilient team can adapt quickly to new circumstances and remains productive even in difficult times.

What specific challenges do you face in strengthening the resilience of your teams?

Digitalization presents our employees with considerable adjustment requirements. In addition, there are frequent reorganizations, for example due to new guidelines or efficiency measures. There is also a high workload in many areas due to sickness absences or unfilled expert positions as a result of the shortage of specialists.

How have you anchored the topic of team resilience in your organization?

ILB recognized team cohesion and resilience as key issues many years ago. We offer our employees systematic support from coaches and trainers from the pme Academy. We have succeeded in raising awareness among managers that good team dynamics promote well-being. This leads to fewer conflicts and less sickness-related absences and strengthens the team's performance.

How does the cooperation with the pme Academy work?

The pme Academy supports us in the organization of team meetings and the moderation of larger workshops - ranging from small teams of 4 people to entire areas with 80 participants. We also work together with their conflict moderators. Managers are part of the system and therefore cannot mediate neutrally, which is why external support is very valuable. There are also preventative offers that enable managers and employees to address conflicts and provide feedback.

Unleash the full potential of your managers and teams now.

Our trainers and coaches at the pme Academy support you in difficult transformation and change processes or analyze together how you can make even better use of your team's strengths. 

More information on the seminars and training courses: pme Academy

What effect do these offers have on your employees?

Our employees find these offers very helpful. They appreciate being able to talk about team spirit away from the daily work routine. Since the coronavirus pandemic, many have been working from home, which has led to fewer informal meetings and more social distancing. Hybrid or digital meetings are often very business-oriented, but personal interaction is crucial to strengthen bonds and a sense of community.

How do managers specifically support their teams in difficult times and ensure a resilient working environment?

We promote a sense of unity in a variety of ways in order to strengthen cooperation. Together with the workforce, we have developed guidelines for transparent, constructive communication, a lively feedback culture and cross-divisional collaboration.
Not only managers but also employees are responsible for regularly discussing and reflecting on these values. Regular team events offer the opportunity to maintain personal connections despite hybrid working models and to discuss common interests beyond work content.

What measures do you take to ensure that employees dare to speak openly about challenges or mistakes?

Dealing constructively with mistakes and challenges is firmly anchored in our vision of a learning organization. We promote transparency and encourage our managers to support their employees and adopt a solution-oriented approach instead of looking for someone to blame.

How does this work in practice? Are there tools and techniques for systematically talking about setbacks and mistakes?

We systematically integrate the topic of feedback into our annual appraisals and thus repeatedly raise awareness of its importance. There have also been campaigns on how to give constructive feedback, with newsletters, postcard campaigns and training measures.

What programs, training or resources do you offer to continuously promote the resilience of teams and individuals?

In addition to various communication training courses, such as conflict management, we offer teams the opportunity to call in external mediators or moderators for team building in times of crisis. The pme Familienservice is an important partner here.
In addition, all managers have the opportunity to choose a coach to support them in challenging situations. In day-to-day work, it's often all about the "what" and less about the "how". When a team is reassembled or a new manager is appointed, we support the process with targeted guidance.

How do you ensure that employees are not overwhelmed in stressful phases and remain productive?

Stress management is a key issue that we support through training for both our employees and managers. It is an essential part of management development so that they can protect themselves and their teams from overload and manage crises in a targeted manner. We also offer social counseling and practical support in difficult private and professional situations via an external partner.

We are currently experiencing a very strong polarization in society. Is this also noticeable in your teams? Are the conflicts growing?

My perception is that we are very reluctant to talk about politics, possibly to avoid conflict. I can only speak for my team here: It is very important to us to treat each other with respect, and that includes respecting different opinions. One example was the vaccination debate during the coronavirus pandemic, where there were both supporters and opponents. I experienced a lot of tolerance. Good cooperation is important to us and helps us to overcome crises together.

Patrizia Lehmkuhl

Educational Consultant and Health Manager

 

Contact:

familienservice