UV Index in Ranai, Indonesia

Last updated: May 3, 2025

Understanding the UV Index in Ranai, Indonesia is crucial for protecting your skin and overall health. With high UV levels, especially during midday hours, awareness of the UV Index helps you take proactive steps against sunburn and long-term skin damage. The tropical Af climate of Ranai means that sun exposure can be intense, reaching peak levels of 14 around noon. By staying informed about UV risks, you can enjoy the island's natural beauty while keeping your skin safe!

Hourly UV Index in Ranai

The UV Index showcases a dramatic rise and fall throughout the day, offering insights into sun exposure. Starting at 7:00 AM with a mild index of 2, the sun's strength quickly escalates, peaking at 14 between 12:00 PM and 1:00 PM—the prime time for those seeking a tan or outdoor activity. At 10:00 AM, a noteworthy peak of 11 demands caution for sun-sensitive individuals. As afternoon approaches, the index decreases significantly, slipping to 5 at 3:00 PM, then further dropping to a mere 1 by 5:00 PM and fading to 0 after 6:00 PM. This data highlights the critical hours for protection against UV exposure, especially from 10 AM to 2 PM, where the sun is at its most intense.

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	8	very high	15 min
10:00	11	extreme	10 min
11:00	13	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 Ranai

The UV Index exhibits extreme levels year-round, with particularly high values from February to April, peaking at 16. January through May consistently show a UV Index of 14-16, indicating a high-risk period for sun exposure and resulting in a burn time of just 10 minutes across all months. Although the UV Index slightly declines during the summer, values remain elevated at 13-14 until November. As a result, both visitors and residents should prioritize sun protection throughout the year, especially during these high-risk months. Recommended precautions include wearing sunscreen, protective clothing, and seeking shade when outdoors to minimize the risk of skin damage.

Monthly Maximum UV Index for Ranai, Indonesia

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

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

Ranai's solar exposure compared to other cities in Indonesia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Surabaya UVI	13	15	14	12	12	10	11	12	14	13	13	13
Bekasi UVI	14	16	16	14	11	10	10	11	13	15	14	13
Jakarta UVI	14	16	16	14	11	10	10	11	13	15	14	13
Medan UVI	13	15	15	15	14	12	12	13	14	14	13	12
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14
Ranai	14	15	16	16	14	13	13	14	14	14	13	12