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Wednesday, July 6, 2022

Heat in Poland. UV index forecast – Thursday 23.06. Watch out for the sun

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The heat will stay with us for a few days. It will be sunny and such weather encourages you to relax outdoors. However, one should not forget about safety, in particular that the UV index on Thursday will be high.

As the Institute of Meteorology and Water Management warns, the heat in part of the country will last until Monday. Second level alerts have been issued for western Poland.

Although the weather encourages sun exposure, uncontrolled tanning can be dangerous to your health. Too long exposure to ultraviolet rays can result in skin burns or even sunstroke. Excessive sunbathing, on the other hand, can cause skin cancer, cataracts and lower biological resistance.

UV index on Thursday 23.06

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The UV Index is an international standard for measuring the ultraviolet (UV) radiation that the sun emits on a given day in a specific location.

According to the forecast of the Institute of Meteorology and Water Management for Thursday, with a cloudless sky, the UV index in almost all of Poland will be 7. Locally in the central part of the country it may be 6, while in Tatra Mountains and the Bieszczady Mountains – 8.

UV index forecast for June 23 for a clear skyIMGW

The forecasts for cloudy skies are similar. In most of the country, the UV index will be 7, only 6 in the center and 8 in the south.

UV index forecast for 06/23 for cloudy skiesIMGW

The UV index of 6 to 7 poses a high and very high risk during prolonged exposure to the sun. In this case, use sunscreen (at least 15) and wear light-colored clothing and headgear. It is worth limiting the time spent in the sun between 11 am and 4 pm.

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

Sunny health and safetyPAP / Małgorzata Latos


The risk of skin burns, stroke, or melanoma comes from ultraviolet radiation, which has three different types of waves: 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 hidden behind clouds. They occur with the same intensity regardless of the weather.

The UVB rays are shorter than the UVA rays. Some of them are absorbed by the ozone layer, but most reach the Earth’s surface. UVB tanning and burns the skin. 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 most active from April to October from 10 am to 4 pm.

We also distinguish UVC rays, the shortest ones that do not reach the Earth’s surface because they are absorbed by the atmosphere.

Sunbathing is not for everyonePAP / Maciej Zieliński, Adam Ziemienowicz

Main photo source: Shutterstock

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