UV Index in Grogol, Indonesia

Last updated: July 2, 2025

In Grogol, Indonesia, being aware of the UV Index is crucial for maintaining healthy skin and preventing sunburns. Understanding the levels of ultraviolet radiation can help you make informed decisions about sun exposure, especially during peak hours when UV levels soar. Grogol's tropical climate brings about intense sunlight, particularly from 10 AM to 2 PM, when UV Index values can reach a maximum of 11, posing significant risks for skin damage. Stay informed and protect yourself effectively to enjoy the sunny days while safeguarding your skin health!

Hourly UV Index in Grogol

As the sun rises, the UV Index climbs steadily, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it reaches 3, marking the beginning of increased sun exposure. The day continues to heat up, with the index peaking at a remarkable 11 from 11:00 AM to 12:00 PM, indicating a high risk for harm from unprotected sun exposure. As the afternoon sets in, it gradually declines, dropping to 6 by 2:00 PM and subsequently to 3 by 3:00 PM. As the sun begins to descend, the index returns to a safer 1 by 4:00 PM and tapers off to 0 after 6:00 PM. This hourly trend underscores the importance of sun protection during the midday hours when the UV exposure is at its highest.

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	11	extreme	10 min
13:00	9	very high	15 min
14:00	6	high	25 min
15:00	3	moderate	30 min
16:00	1	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 Grogol

Throughout the year, the UV Index demonstrates significant variation, with particularly high levels observed from January to April and again in October, categorizing these months as high risk for UV exposure. Consistently extreme levels are noted from January to April, as well as July to September. Residents and visitors should be especially cautious during the summer months when the UV Index peaks, notably in February and October reaching indexes of 15 and 16, respectively, which come with a burn time of just 10 minutes. Sunscreen, protective clothing, and shade are strongly advised, especially during these critical months, to minimize the risk of skin damage from UV radiation.

Monthly Maximum UV Index for Grogol, Indonesia

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

The table above highlights how UV exposure in Grogol 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.

Grogol'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
Grogol	14	15	15	14	12	10	11	12	14	16	14	14
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14