UV Index in Wattegama, Sri Lanka

Last updated: July 2, 2025

Understanding the UV Index is essential for the residents and visitors of Wattegama, Sri Lanka, where the sun's intensity can vary dramatically throughout the day. The UV levels in this tropical climate can reach a maximum of 13 during midday, significantly increasing the risk of sunburn and long-term skin damage. By being aware of these levels, you can take vital precautions to protect your skin and overall health. With its warm Af climate, Wattegama presents unique challenges for sun exposure, making it crucial to stay informed about the UV Index to enjoy the outdoors safely.

Hourly UV Index in Wattegama

During the early hours of the day, the UV Index begins at a gentle 2 at 7:00 AM, gradually climbing to 4 by 8:00 AM. As the sun reaches its zenith, the intensity peaks dramatically, soaring to a striking 13 between 11:00 AM and 12:00 PM—a clear indication to protect your skin. The index then starts to decline after 1:00 PM, dropping to 7 at 2:00 PM and further dwindling to a 4 by 3:00 PM. As the day winds down, the UV exposure decreases significantly, falling to 1 by 5:00 PM and finally settling at 0 after 6:00 PM, inviting a sense of relief from the sun's rays. Make sure to check the UV Index for safe sun practices throughout the day!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	7	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Wattegama

The UV Index remains consistently high throughout the year, with extreme exposure levels observed from January to October, peaking in March at 15. February and April closely follow, each also reaching a UV Index of 15. This trend indicates that the high-risk months for sun exposure are primarily from January to October, with March being particularly notable. Tourists and residents should take precautions, such as wearing protective clothing and sunscreen, and limiting sun exposure to prevent skin damage, especially during these months when the burn time is just 10 minutes. As the UV Index starts to drop slightly in November and December, it is still essential to stay aware, as levels remain at 11, indicating ongoing risk.

Monthly Maximum UV Index for Wattegama, Sri Lanka

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Wattegama. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Wattegama, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Wattegama UV Index with Other Sri Lanka Cities

The table above highlights how UV exposure in Wattegama compares to other major locations across Sri Lanka. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Wattegama's solar exposure compared to other cities in Sri Lanka. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Jaffna UVI	11	13	14	15	13	12	13	13	14	12	11	10
Moratuwa UVI	11	13	14	15	14	12	13	14	14	13	11	10
Maharagama UVI	11	13	14	15	14	12	13	14	14	13	11	10
Dehiwala-Mount Lavinia UVI	12	13	14	15	14	12	13	14	14	13	11	10
Colombo UVI	12	14	14	15	14	13	13	13	14	13	11	10
Wattegama	12	13	15	15	14	13	13	14	14	13	11	11