UV Index
UV Index
Today's UV index in Kotte, Sri Lanka 
will be up to 11, 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: 2025-06-01
UV index at 11 in Kotte 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.
Kotte, Sri Lanka, experiences a UV index typically ranging from 6 to 12, indicating strong to very strong ultraviolet radiation throughout the year. The highest UV levels occur during the dry season months.
The city has two main seasons: a wet season with heavy rain from May to September and a dry season from December to March. Temperatures stay warm year-round, usually between 26°C and 32°C (79°F to 90°F).
Compared to nearby countries like India and Bangladesh, Kotte is hotter and more humid. Its rainfall is more evenly spread, unlike the monsoon extremes in neighboring areas. The tropical climate remains consistent with other parts of Sri Lanka.
See the UV index hour by hour for Kotte, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.