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High UV index nationwide. Dangerous weather. Weather for Saturday 8.07

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As expected, the weekend welcomed us with sunny aura. It will be hot in some regions of Poland on Saturday. In such moments, remember about creams with filters and sunglasses, because the UV index is high throughout the country.

The heat is coming to Poland. According to forecasts of forecasters from the Institute of Meteorology and Water Management, in the south-western part of the country on Saturday, thermometers in the shade may indicate around 30-33 degrees Celsius. It will be even hotter in the sun.

>>> Read more: The heat will take its toll on us. In the following days, IMGW may also warn of thunderstorms with hail

UV index – what is it?

The Institute of Meteorology and Water Management (IMGW) presents a daily forecast of the UV index. The UV index is an international standard for measuring the ultraviolet (UV) radiation that the sun emits on a given day at a particular location.

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A UV index of 6 to 7 poses a high and very high risk when staying in the sun for a long time. In this case, use sunscreen (at least SPF 15) and wear light-colored clothing and hats. It is worth limiting the time spent in the sun between 11am and 4pm.

On the other hand, the UV index equal to or higher than 8 informs about a very high risk to our health. Then you should take even more care of the skin, because it can get tanned very quickly, as well as burns.

UV index

For Saturday, IMGW forecasts a UV index of 7 for most of the country. In the northern regions it will be slightly weaker, as it will reach 6.

However, in the southern reaches of our country, the solar threat will be very high – it will reach level 8 on an increasing scale.

UV index forecast for Saturday, July 8, 2023 using the cloud forecastbiometeo.imgw.pl

Ultraviolet radiation – types

The risk of skin burn, stroke or melanoma is associated with ultraviolet radiation, which has three different wavelengths: UVA, UVB and UVC.

UVA rays are the longest and reach the deep layers of the skin, damaging its collagen fibers and thus accelerating aging and causing wrinkles. They reach the Earth’s surface regardless of whether the sun is shining or is hidden behind clouds. They occur with the same intensity regardless of the weather.

UVB rays are shorter than UVA. Some of it is absorbed by the ozone layer, but most reaches the Earth’s surface. UVB rays tan and cause skin burns. They damage the DNA of cells, which in turn leads to melanoma, the most dangerous type of skin cancer. Their intensity depends on the season and day. They are strongest from April to October between 10am and 4pm.

Tanning is not for everyoneMaciej Zieliński, Adam Ziemienowicz/PAP

Main photo source: Shutterstock



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