UV Index in Goiania, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Goiania, Brazil, is crucial for protecting your skin and overall health from the sun's harmful rays. With its Aw climate, Goiania typically experiences high UV exposure, especially during the midday hours when the index peaks at 8. By being aware of the UV levels, you can effectively manage your time outdoors, helping to prevent sunburn and long-term skin damage. With a peak UV Index of 7 to 8 between 11 AM and 1 PM, it's vital to plan your sun activities accordingly to stay safe while enjoying the warm Brazilian sun.

Hourly UV Index in Goiania

At dawn, the UV Index remains low, peaking at 1 by 08:00. As the sun rises higher, a notable increase occurs, reaching 3 at 09:00 and escalating dramatically to a maximum of 8 from 12:00 to 13:00. This midday surge indicates a higher risk for sun exposure, making it essential to take precautions such as wearing sunscreen and protective clothing. The intensity then gradually declines, dropping to 4 by 15:00, and continuing its descent to 0 by 19:00, marking the end of the sun’s peak influence for the day. Stay mindful of these hourly fluctuations to enjoy the sun safely!

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	8	very high	15 min
14:00	6	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 Goiania

The UV Index data indicates that UV radiation levels remain extremely high during the winter and early spring months, with values peaking at 16 from January to February and again in November and December, necessitating protection with a burn time of just 10 minutes. As the season transitions into spring, levels slightly decrease but remain very high in May and June, where burn times extend to 15 minutes. Key high-risk months for UV exposure include February, March, April, August, and October, all classified as extreme. Visitors and residents should take precautions during these months by wearing sunscreen, protective clothing, and seeking shade to minimize their risk of skin damage. Continuous vigilance is essential as UV radiation can cause harm regardless of season, so being aware and prepared is crucial year-round.

Monthly Maximum UV Index for Goiania, Brazil

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

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

Goiania's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rio de Janeiro UVI	15	14	13	10	7	6	7	9	11	12	13	15
Sao Paulo UVI	16	15	12	11	8	6	7	9	11	13	14	15
Belo Horizonte UVI	17	16	14	12	9	7	8	10	12	13	14	16
Salvador UVI	14	14	14	13	10	9	9	12	12	15	15	14
Goiania	16	16	14	13	10	8	9	11	12	15	16	16
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13