UV Index
UV Index
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Today's UV index in Swansea, United Kingdom 
will be up to 5.3, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 5.3 in Swansea, 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.
The UV index in Swansea, UK, typically ranges from low to moderate, with values rarely exceeding 6. This is due to the city's northern latitude and maritime climate.
Swansea experiences four distinct seasons. Summer days are mild and often rainy, with temperatures averaging around 19°C (66°F). Autumn sees temperatures dropping, along with increasing rain and strong winds. Winter is cold and wet, with temperatures rarely falling below freezing. Spring brings milder temperatures and blossoms, signaling the beginning of warmer days.
Comparatively, Swansea is warmer and drier than many other parts of the UK, particularly in the north. However, it tends to be rainier than neighboring countries like France and Ireland, due to its position on the western coast of Britain and the influence of the Atlantic Ocean.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Swansea. It's designed to provide you with a better understanding of the yearly weather and sun exposure.