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UV Index in Belfast

Day Summary

Today's UV index in Belfast, United Kingdom United Kingdom will be up to 4.4, 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: 2025-05-10

Forecast

Today's tips

With a UV index reaching up to 4.4 in Belfast, 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.

Belfast's UV Index

Belfast's UV index is usually low to moderate, ranging from about 1 in winter to 5 or 6 in summer, due to its northern location and often cloudy skies. This means the sun's rays are not very strong most of the year.

Weather Seasons

UV index

Belfast has cool, wet winters with temperatures around 0-8°C and mild summers, averaging 15-20°C. Rain is common year-round, with the wettest months typically from October to January. Snow can happen in winter but is not heavy.

Belfast's Climate

Compared to other parts of the UK, Belfast is cooler and wetter than much of England but milder than inland Scotland. It is windier and rainier than Dublin, Ireland, which lies just across the Irish Sea and has slightly warmer temperatures.

Hourly Trend

See the UV index hour by hour for Belfast, 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 Belfast (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.