UV Index
UV Index
Today's UV index in Tainan City, Taiwan 
will be up to 12.3, 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: 2025-07-22
UV index at 12.3 in Tainan City 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.
Tainan City has a high UV index, often ranging from 7 to 11, especially in summer, indicating strong sunlight that can cause sunburn quickly. The UV levels are lower in winter, generally around 2 to 4.
Tainan experiences hot, humid summers with frequent rain and typhoons from June to September. Winters are mild and drier, usually from December to February. Spring and autumn are short and warmer compared to northern Taiwan.
Compared to northern Taiwan and nearby countries like Japan and South Korea, Tainan is warmer year-round. It also has more intense sunlight and a longer rainy season than much of Southeast Asia, such as Vietnam and the Philippines.
See the UV index hour by hour for Tainan City, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.