UV Index
UV Index
Today's UV index in Hong Kong, Mexico 
will be up to 11.8, indicating a extreme level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-09
UV index at 11.8 in Hong Kong means extreme risk: limit outdoor time especially from 10 a.m. to 4 p.m., actively seek shade, wear protective clothing, broad-brimmed hat, apply SPF 30+ sunscreen every 2 hours, and wear UV-blocking sunglasses. Watch for bright surfaces like water and snow increasing UV exposure.
Hong Kong's UV index is generally high, especially in summer, often reaching levels above 8. During winter, the UV index drops to moderate levels around 2 to 4. Spring and autumn have moderate to high UV levels.
Hong Kong experiences hot, humid summers with heavy rain and typhoons, while winters are mild and dry. Spring and autumn are short, with comfortable temperatures and less rain. The weather changes quickly between seasons.
Compared to nearby cities in southern China, Hong Kong is warmer and more humid. Its coastal location causes more rain and typhoons than inland areas. Neighboring countries like Vietnam and the Philippines share similar tropical climate features with Hong Kong.
See the UV index hour by hour for Hong Kong, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.