UV Index
UV Index
Today's UV index in Phuket, Thailand 
will be up to 12.6, 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 12.6 in Phuket 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.
Phuket's UV index often reaches very high levels, especially from March to May, meaning the sun's rays are strong and can cause sunburn quickly during these months. The UV index is lower but still significant during the rainy season from May to October.
Phuket has a tropical climate with a hot and rainy season from May to October and a cooler dry season from November to April. The hottest months are March, April, and May. The rainy season brings heavy showers, especially in September and October.
Compared to mainland Thailand, Phuket has more consistent temperatures year-round due to its island location. It usually receives more rain during the monsoon season than areas like Bangkok. Neighboring Malaysia experiences a similar tropical climate but with slightly different monsoon timings.
See the UV index hour by hour for Phuket, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.