Not only will it be blisteringly hot today, but UV-B radiation levels will be so high that you could get sunburnt in just 15 minutes. Here’s what to expect for the rest of the week—holidaymakers will be pleased, that’s for sure.

Prepare for extreme UV-B radiation

Last week marked the first true heatwave of the summer, but over the weekend, temperatures dipped slightly—giving Hungarians a brief respite from the 100-degree heat. This week, the high temperatures return, continuing a trend that began weeks ago, with most of the country seeing no rainfall. Experts are raising the alarm: unless significant investments are made soon in water retention infrastructure, vast agricultural regions of the Great Hungarian Plain may soon turn into deserts.

Back to today’s weather: extreme UV-B radiation is forecast, making it highly inadvisable to sunbathe between 11 a.m. and 3 p.m.—even at the beach. If exposure is unavoidable, sunscreen, hats, and cover-ups are essential. For people with average skin types, today’s projected UV-B level of 8 could cause a painful sunburnt in just 15 minutes. Temperatures could reach up to 35°C (95°F) in some areas, although northern and north-western winds are expected to provide slight relief, according to the meteorological service HungaroMet.