UV Index
UV Index
Today's UV index in Bristol, United Kingdom 
will be up to 5.7, 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: 2025-05-21
With a UV index reaching up to 5.7 in Bristol, 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.
Bristol's UV index is usually low to moderate, ranging from 0 in winter to around 5 or 6 in summer. It rarely reaches very high levels because of its northern latitude and cloudy weather.
The city has mild, wet winters with temperatures around 2-8°C and cool summers averaging 18-22°C. Rain can happen any time but is most common in autumn and winter. Spring and summer bring more sunshine and less rain.
Compared to other UK cities, Bristol is slightly warmer and sunnier due to its southwest location. It has less rain than places in western Wales but more than cities in eastern England. Neighboring countries like France and Ireland generally have warmer or wetter conditions respectively.
See the UV index hour by hour for Bristol, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.