UV Index in Lotu, Indonesia

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Lotu, Indonesia, where the sun's rays can be particularly intense. Awareness of UV levels helps in preventing sunburn and promoting long-term skin health, especially in a region characterized by its tropical Af climate. From the early morning hours to midday, the UV Index can reach levels as high as 12, indicating a significant risk of harm from unprotected sun exposure. By staying informed about the daily UV Index, you can better protect yourself and enjoy the beautiful sunny days that Lotu has to offer while safeguarding your skin.

Hourly UV Index in Lotu

As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 07:00 before gradually climbing to a moderate 2 by 08:00. The real intensity kicks in as the clock strikes 10:00, when the index reaches a noteworthy 7. By 11:00, it peaks at an extreme 10, and just after noon, it hits the highest point of the day at an impressive 12. This intense UV exposure continues until 13:00, where it remains steady at 12. As the afternoon progresses, the index starts to decline, dropping to 10 at 14:00, then tapering off to 7 by 15:00. The UV Index continues to decrease, reaching 4 at 16:00 and returning to a low of 1 by the evening, with the sun slipping below the horizon at 19:00, leaving a safe UV reading of 0.

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	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Lotu

Throughout the year, the region experiences extreme UV Index levels, particularly from January to March, where the UV Index peaks at 16. High-risk months include January, February, March, September, and October, with UV ratings consistently between 14 and 16. During these months, individuals are encouraged to take precautionary measures such as wearing sunscreen, protective clothing, and seeking shade to minimize skin damage. Even during the summer months of June and July, the UV Index remains at 12, indicating the necessity for ongoing sun protection. With a persistent burn time of just 10 minutes across all months, visitors and residents should remain vigilant about sun exposure year-round.

Monthly Maximum UV Index for Lotu, Indonesia

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

The table above highlights how UV exposure in Lotu 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.

Lotu'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
Lotu	14	15	16	15	15	12	12	14	15	15	14	13