UV Index in Halong, Indonesia

Last updated: June 2, 2025

In Halong, Indonesia, staying informed about the UV Index is crucial for safeguarding your skin and maintaining overall health. Understanding UV levels provides essential insights that help prevent sunburn and long-term skin damage, especially in a tropical environment where the sun can be particularly intense. With the region's Af climate characterized by high humidity and ample sunlight, residents and visitors face significant UV exposure risks, especially during the midday hours when the index peaks at a staggering 12. Being proactive about UV awareness can ensure you enjoy the beautiful outdoors while keeping your skin safe and healthy.

Hourly UV Index in Halong

The UV Index today paints a vivid picture of the sun's intensity throughout the hours. Starting at a mild 1 by 07:00, it gradually rises to 12 at 12:00, marking the peak of solar strength. As the clock strikes 11:00, sun-seekers should be cautious, with the index reaching 11. After this zenith, it begins to dip, descending to 6 by 15:00 and tapering off to a gentle 1 by 17:00. Finally, as daylight wanes, the index drops to 0 by 19:00, signaling the day's end. Stay protected during the peak hours, especially between 10:00 and 14:00, when the sun’s rays are most formidable! 🌞

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	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 Halong

Throughout the year, the UV Index remains notably high, with values consistently in the extreme exposure category, particularly between January and October. The highest UV readings occur in February and March at 16, while April and May follow closely with indices of 15 and 14, respectively. As summer approaches, the index dips slightly in June and July to 12, before rising again in August to 14 and peaking in September at 15. The months of February, March, September, and October are critical high-risk periods for UV exposure. Visitors and residents are strongly advised to take precautionary measures during these months, including wearing sunscreen, protective clothing, and seeking shade, as the potential for skin damage from sun exposure is significant, with a burn time of just 10 minutes across all months.

Monthly Maximum UV Index for Halong, Indonesia

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

The table above highlights how UV exposure in Halong 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.

Halong'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
Halong	15	16	16	15	14	12	12	14	15	16	14	14