UV Index in Guay, Indonesia

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Guay, Indonesia, where the tropical climate brings intense sunlight year-round. With UV levels peaking as high as 12 around midday, awareness of these indices is essential for preventing sunburn and protecting skin health. The UV Index helps you gauge the intensity of harmful solar radiation, allowing you to take necessary precautions, especially during the summer months when exposure risks are elevated. Whether you're exploring the vibrant outdoors or relaxing on the beach, staying informed about UV levels can keep your skin safe and healthy in this beautiful coastal region.

Hourly UV Index in Guay

At dawn, the UV Index starts off gently at 1 by 07:00, but as the morning unfolds, it swiftly climbs. By 09:00, the index hits 6, indicating a moderate risk of harm from unprotected sun exposure. The sun reaches its zenith around noon, peaking at a scorching 12 at 12:00. 11:00 to 12:00 marks the most dangerous hours for sun exposure, with the UV Index staying at 11 and 12, so sunscreen is essential! After this peak, a gradual decline begins. By 14:00, it drops to 7, and then further descends into the afternoon and evening, stabilizing at 0 by 19:00, indicating a safe end to sun exposure for the day. This data serves as a reminder to stay sun-safe during those critical midday 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	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	10	very high	15 min
14:00	7	high	25 min
15:00	4	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 Guay

The UV Index varies throughout the year, exhibiting extreme levels from January to May, with a peak in February and March at 17, indicating that these months pose the highest risk for skin damage with a burn time of just 10 minutes. Although the UV Index decreases slightly in June to 11, it remains significant, climbing back to 14 in both August and September before tapering off. Notably, October and December also maintain an extreme rating of 15. Visitors and residents should exercise caution during these high-risk months by taking protective measures such as wearing sunscreen, protective clothing, and seeking shade, especially during peak sun hours, to minimize the risks associated with UV exposure.

Monthly Maximum UV Index for Guay, Indonesia

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

The table above highlights how UV exposure in Guay 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.

Guay'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
Guay	15	17	17	16	14	11	12	14	14	15	14	14