Ffald-y-Brenin UV Index
Carmarthenshire — Sun Safety & UV Levels
Ffald-y-Brenin UV Outlook
Today in Ffald-y-Brenin, the UV index is expected to stay moderate. Fair-skinned individuals may wish to apply sunscreen.
The longer-range UV signal for Ffald-y-Brenin points to moderate levels for most days. Even with some cloud, UV can still be noticeable in brighter spells.
Current UV
Fair-skinned individuals may wish to apply sunscreen.
☀️ UV Scale
| 0–2 | Low | Minimal UV risk today; sun protection generally not required. |
| 3–5 | Moderate | UV levels are moderate — consider sunscreen if spending extended time outdoors. This is the guidance for Ffald-y-Brenin today. |
| 6–7 | High | UV levels are high — sunscreen, a hat, and sunglasses recommended. |
| 8–10 | Very High | UV levels are very high — take full precautions when outdoors. |
| 11+ | Extreme | Exceptionally high UV; minimise time in direct sun during peak hours. |
Today’s Hourly UV
14-Day UV Forecast
UV Trend
Forecast context and reference links
For Ffald-y-Brenin, the forecast is best read as a combination of short-range detail and broader regime. The first few days carry the highest timing confidence, while later periods describe direction and pattern.
- Wales Climate for regional patterns and seasonal tendencies.
- UK Climate Overview for a national baseline and how regions compare.
- Wales for location browsing and regional navigation.
How to interpret confidence
For how forecast reliability changes with lead time, see Forecast Confidence. For transparency on how WeatherEngland sources and updates data, see Methodology.
Background guides
- UK Weather Patterns
- UK Seasonal Weather
- UK Weather Hazards
- UK Weather Safety
- UK Jet Stream
- UK Microclimates
Glossary support
Start with the Weather Glossary. Useful terms for this page include UV Index, Solar Radiation, and Cloud.
FAQ
What is the UV index in Ffald-y-Brenin today?
The UV index in Ffald-y-Brenin today is moderate with values around 4. UV strength is shaped by the sun’s elevation, cloud thickness and atmospheric clarity.
When is UV strongest in Ffald-y-Brenin?
The peak UV window in Ffald-y-Brenin is close to midday, as solar elevation peaks. Values rise most in late spring and summer as solar angles increase.
Can UV be high when it’s cloudy in Ffald-y-Brenin?
Yes. Even when it looks cloudy, UV can still reach the surface, particularly through thinner cloud layers. Bright or hazy conditions can still produce notable UV, particularly in late spring and summer.
What does the UV index number mean for sun safety?
The UV index describes the potential for skin damage from ultraviolet radiation. As the number rises, skin damage can occur more quickly in direct sun, so shade, clothing and sunscreen become more important.
Does UV in Ffald-y-Brenin change a lot day to day?
Sometimes, yes. Short-term changes usually come from cloud cover and atmospheric haze, whereas the larger seasonal cycle tracks solar elevation across the year.