UV Index in Moratuwa, Sri Lanka

Last updated: May 3, 2025

In Moratuwa, Sri Lanka, awareness of the UV Index is crucial for protecting your skin and overall health. Understanding the daily UV levels helps residents and visitors alike take necessary precautions against sunburn and long-term skin issues. With a tropical Af climate, Moratuwa experiences significant sun exposure, especially during peak hours between 10 AM and 2 PM, when the UV Index can soar to 14. By being informed about these fluctuations, you can enjoy the sunny beaches while keeping your skin safe from harmful ultraviolet rays. Remember, a little awareness goes a long way in maintaining your skin health!

Hourly UV Index in Moratuwa

The UV Index data for today reveals a dynamic pattern of solar intensity. Starting off at a modest 2 at 07:00, the index climbs steadily, reaching a peak of 14 by 11:00 and 12:00, indicating a high risk of harm from unprotected sun exposure during these hours. As the afternoon progresses, the index begins to decline, dipping to 8 by 14:00 and falling to 5 by 15:00. By evening, the UV Index drops dramatically to 1 at 17:00, and finally sinks to 0 after 18:00, making the evening hours safe for outdoor activities. Remember to stay protected during those 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	5	moderate	30 min
09:00	8	very high	15 min
10:00	12	extreme	10 min
11:00	14	extreme	10 min
12:00	14	extreme	10 min
13:00	12	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 Moratuwa

The UV Index shows significant seasonal fluctuations, peaking in the spring and summer months, specifically from February to September when the index ranges from 13 to 15, indicating an extreme exposure category. Notably, March and April are the months with the highest measurements, making them particularly high-risk for sunburn, with a burn time of only 10 minutes. As summer transitions to fall, the UV levels remain high until October, gradually decreasing to a very high index of 10 by December, which increases the permissible burn time to 15 minutes. To protect yourself during the high-risk months, it is crucial for visitors and residents to wear sunscreen, seek shade, and limit sun exposure, especially between the hours of 10 AM and 4 PM when the sun's rays are strongest.

Monthly Maximum UV Index for Moratuwa, Sri Lanka

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

The table above highlights how UV exposure in Moratuwa 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.

Moratuwa'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	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