UV Index
UV Index
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Today's UV index in Lima, Peru 
will be up to 13.9, indicating a extreme 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.
UV index at 13.9 in Lima means extreme risk; limit outdoor time from 10 a.m. to 4 p.m., use shade, protective clothing, SPF 30+ sunscreen, and sunglasses; watch for bright surfaces like water and snow increasing UV exposure.
The UV index in Lima, Peru, is typically low to moderate, ranging from 3 to 7. This is due to the city's coastal location and frequent cloud cover.
Lima has two main seasons: winter (May to October) and summer (November to April). Winter is characterized by cool temperatures, heavy fog, and minimal rainfall, while summer is cooler than inland Peru with more sunny days and occasional drizzle.
Compared to its region and neighboring countries, Lima's climate is unique. Unlike much of Peru, Lima's climate is not influenced by the Andes or Amazon rainforest. It is drier and milder than coastal areas in Chile and Ecuador, with less extreme temperature fluctuations.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Lima. It's designed to provide you with a better understanding of the yearly weather and sun exposure.