UV Index
UV Index
Today's UV index in Southampton, United Kingdom 
will be up to 5.4, 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
With a UV index reaching up to 5.4 in Southampton, 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.
Southampton's UV index is generally low to moderate, ranging from about 0 in winter to around 5 or 6 in summer. UV levels peak in late June and July but are usually less intense than in southern Europe.
The city experiences mild, wet winters and cool summers with occasional warm days. Rainfall is spread throughout the year, with October to January typically being the wettest months. Spring and early summer tend to be drier and sunnier.
Compared to other parts of the UK, Southampton has slightly milder winters and warmer summers due to its southern coastal position. Its weather is less extreme than inland areas and generally cooler and wetter than southern European countries like Spain or France.
See the UV index hour by hour for Southampton, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.