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UV Index in Cardiff

Day Summary

Today's UV index in Cardiff, United Kingdom United Kingdom will be up to 5.2, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.

Last checked: 2025-05-12

Forecast

Today's tips

With a UV index reaching up to 5.2 in Cardiff, 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.

Cardiff's UV Index

Cardiff’s UV index is usually low to moderate, rarely reaching very high levels. It mostly stays around 2 to 5, with the highest UV index in the summer months.

Weather Seasons

UV index

In Cardiff, winters are cool and wet, while summers are mild with some rain. Spring and autumn bring mixed weather with occasional sunny and rainy days, making the climate quite changeable throughout the year.

Cardiff's Climate

Compared to other parts of the UK and nearby countries, Cardiff tends to have milder winters and cooler summers than places in southern England. It is wetter than many English cities but less rainy than some parts of western Ireland.

Hourly Trend

See the UV index hour by hour for Cardiff, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.

Disclaimer

* This page's content about the UV index in Cardiff (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.