UV Index in Bentota, Sri Lanka

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Bentota, Sri Lanka, where the sun shines brightly in a tropical Af climate. This awareness is not just about enjoying the warm weather, but also about protecting your skin from harm. High UV levels can lead to painful sunburns and long-term health issues, making it essential to monitor daily UV exposure. For instance, in Bentota, peak UV levels can soar to a staggering 13 around midday, putting sun-seekers at higher risk. By staying informed about the UV Index, you can enjoy the stunning beaches while keeping your skin safe and healthy.

Hourly UV Index in Bentota

As the sun rises, the UV Index begins its ascent, peaking at 13 around 11:00 AM and 12:00 PM—a clear indication that it's crucial to protect your skin during those hours. Early morning starts with a more manageable UV Index of 2 at 07:00, gradually climbing to a moderate 4 by 08:00. By 09:00, it escalates to 7, signaling that sun safety measures should become a priority. The intensity is undeniable, reaching its maximum at 10:00 AM with a blistering 10, before slightly tapering off in the afternoon. By 15:00, the UV exposure decreases to 5, and by 17:00, it falls to 1, signaling the end of the day's high UV risk. Finally, as the sun sets, the UV Index drops to 0 by 19:00, providing a welcome reprieve from the sun’s harsh rays. Stay vigilant and protect your skin during the peak hours!

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	10	very high	15 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	5	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 Bentota

The UV Index exhibits significant seasonal variations, with the highest levels observed from February to April, where values reach a peak of 15 in April. During these months, the exposure category remains extreme, indicating that even brief sun exposure can lead to skin damage, with a burn time consistently set at just 10 minutes. This trend continues into August and September, which also maintain high UV Index ratings of 14. The lowest UV Index occurs in December, dropping to 10, categorized as very high, with a slightly longer burn time of 15 minutes. To safeguard against harmful UV exposure, it is crucial for both visitors and residents to wear protective clothing, use sunscreen, and limit sun exposure during high-risk months, particularly from February through September.

Monthly Maximum UV Index for Bentota, Sri Lanka

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Bentota. 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 Bentota, 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 Bentota UV Index with Other Sri Lanka Cities

The table above highlights how UV exposure in Bentota 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.

Bentota'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
Bentota	12	14	14	15	14	12	13	14	14	13	11	10
Colombo UVI	12	14	14	15	14	13	13	13	14	13	11	10