Cardiff UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index4.6
- Avg Clouds52%
- Max Temp18 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Cardiff, United Kingdom 
will reach a high of 4.6 today. This means a moderate level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-04
Hourly Forecast Chart
Today's Safety Tips
The sun is a bit strong. Find some shade during midday. Wear a hat, sunglasses, and use SPF 30+ sunscreen if you'll be outside for a while.
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
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 UV Index Trend
See the UV index hour by hour for Cardiff. When the level is high, it's smart to find some shade.
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