The sun in the south is much stronger than in Germany. In the Mediterranean in summer or in the tropics, unprotected skin has had enough after just a few minutes. Sunburn does not only spoil the next days of your holiday. It also harms your skin in the long run. With the right protection you can enjoy the sun without regrets.
The UV index
The UV index shows how strong the sun is. It runs from 1 to over 11. From 3 you need protection, and from 8 the radiation is very high. In Germany it is usually 6 to 8 in summer, in the Mediterranean 8 to 10, and in the tropics and high mountains often 11 or more.
| UV index | Level | What to do |
|---|---|---|
| 1 to 2 | Low | No protection needed |
| 3 to 5 | Moderate | Sun cream, hat and sunglasses |
| 6 to 7 | High | Seek shade at midday |
| 8 to 10 | Very high | Stay indoors or in the shade between 11 am and 3 pm if you can |
| 11 and above | Extreme | Avoid the sun as far as possible |
Many weather apps show the current value. The radiation is strongest around midday, even if it feels hotter in the afternoon.
Applying sun cream properly
The most important point is the amount. For an adult’s whole body you need about 30 to 40 millilitres, roughly three heaped tablespoons. Most people use only a fraction of that and so get only part of the protection stated on the bottle.
Apply it about 20 to 30 minutes before you go into the sun. Do not forget your ears, neck, the tops of your feet and your scalp if your hair is thin. Reapply after swimming, towelling off and heavy sweating, and otherwise about every two hours. Even water-resistant cream loses some of its effect in the water.
More than sun cream
The best protection is shade. A parasol, a wide-brimmed hat and light clothing that covers your shoulders and arms protect more reliably than any cream. UV swimwear is especially practical for children. Sunglasses with UV protection protect your eyes, which can get sunburnt too.
Bear in mind that water, sand and snow reflect the rays and make them stronger. Your skin also gets UV radiation under clouds and in the water.
Protect children especially well
Children’s skin is thinner and more sensitive. Babies in their first year should not be in direct sun. Small children should play in the shade at midday, wear a hat and UV clothing, and have SPF 50 on any uncovered skin.
Consider the coral
Some UV filters in sun creams are suspected of harming coral. Some holiday destinations have therefore banned creams with certain filters. If you snorkel on a reef, the best way to protect yourself and the underwater world is UV clothing, with cream only on the uncovered skin.
If it happens anyway
With sunburn, get out of the sun straight away. Cool the skin with damp cloths, not with ice. Drink plenty and give your skin a few days’ rest. If blisters form, or fever, chills or nausea set in, see a doctor. With children, better too early than too late.
flug-123.de editorial team, updated 10 November 2026. We review our guides regularly. Rules can change. If in doubt, the details in your booking apply.
