Thailand’s UV Index Rating and the Risk of Sunburn

• The UV or ultraviolet index is a simple reading related to the strength of the sun’s rays that involves measuring the concentration of UV rays found on the earth’s surface.

• The UV index in Thailand averages a rating between 11–12, which is considered extremely high.

• Dermatologists recommend the daily application of a sunscreen with an SPF rating of over 30 or a PA rating of 3+ on the face and other exposed areas of the skin to protect it from UV rays.

The month of March traditionally marks the start of the hot season in Thailand, during which time the UV index climbs extremely high and poses a significant danger to our skin.

The UV or ultraviolet index is a simple reading related to the strength of the sun in terms of UV rays in a particular area. The index was created by a Canadian scientist in 1992 and then modified by the World Health Organization working alongside the United Nations World Meteorological Organization in 1994. The index rating is high throughout all provinces in Thailand, with additional province-specific information available on the Meteorological Department’s website (click here).

Generally, the provinces that receive a UV index rating of very high - extremely high (from 10:00 onwards) - are as follows: Kanchanaburi, Bangkok, Chonburi, Prachuap Khiri Khan, Trat, Surat Thani, Phuket and Songkhla. People residing in these provinces should exercise extreme caution and be sure to avoid going outdoors between the hours of 10:00–15:00 because exposure to a mere 15–20 minutes of sunlight during this time could cause sunburn and other long-term issues, such as eye disorders and skin cancer.

To conclude, it is essential that we apply sunscreen products that are clinically proven to offer an SPF rating of 30 or more and a PA rating of 3+ to our face and exposed areas of our skin on a daily basis. This is especially important for infants and adults with dermatological issues or an allergy to sunlight. We should all avoid going outdoors between the hours of 10:00–15:00. However, if going outside is unavoidable, be sure to protect the long-term health of your skin and eyes with a hat, UV resistant sunglasses, suitable clothing, and an umbrella.

If the skin is burnt to the extent that it is hot to the touch, basic first aid involves applying an after-sun gel that consists of ingredients designed to reduce irritation. The gel should be applied every morning and evening until symptoms improve. However, if you are still worried about the condition, you may wish to attend a consultation with a dermatologist who can provide additional treatment for the disorder. Such a step currently involves cool laser treatment and Omnilux (light emitting diode technology) therapy designed to reduce inflammation and rehabilitate sun-damaged skin.