UV Index
UV Index
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Today's UV index in Lisbon, Portugal 
will be up to 4.6, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4.6 in Lisbon, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
Lisbon, Portugal, has a high UV index, particularly in the summer months. It can reach extreme levels, so it's important to be aware of this if you're spending time outside.
Lisbon has a Mediterranean climate, with hot, dry summers and mild, wet winters. Spring and autumn are transitional seasons, with pleasant temperatures and less rainfall. The city experiences a lot of sunshine throughout the year.
Compared to its region and neighboring countries, Lisbon is milder in the winter and cooler in the summer. It's warmer and drier than cities in the north, like Porto, and cooler than those in the interior, like Evora. Compared to neighboring Spain and Morocco, Lisbon's climate is more moderate.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Lisbon. It's designed to provide you with a better understanding of the yearly weather and sun exposure.