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UV Index in London

UV index


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Today's UV index in London, United Kingdom United Kingdom will be up to 6.5, indicating a high 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.


Today's tips

With London's UV index reaching 6.5, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours between 10 a.m. and 4 p.m., when UV rays are strongest.

London's UV Index

The UV index in London typically ranges from low to moderate, with levels rarely reaching high. It's influenced by the city's northern latitude and tendency for overcast skies.

Weather Seasons

UV index

London experiences four distinct seasons, each with its own weather characteristics. Spring brings mild temperatures and blooming flowers, while summers are generally warm and sometimes see heatwaves. Autumn features crisp air and colorful foliage, and winters are often cold and damp, with occasional snowfall.

London's Climate

Compared to its region and neighboring countries, London is relatively mild. Its weather is influenced by the North Atlantic Drift, a warm ocean current that moderates temperatures. Cities further north or inland, such as Edinburgh or Paris, usually have colder winters and hotter summers.

Annual Sun Radiation

The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in London. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in London (United Kingdom) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.