UV Index in Joaima, Brazil

Last updated: June 2, 2025

Understanding the UV Index is crucial for the residents of Joaima, Brazil, where the sun's rays can be intense, particularly during peak hours. Awareness of UV levels is essential not only for preventing sunburn but also for protecting long-term skin health, as harmful ultraviolet exposure can lead to skin damage and increase the risk of skin cancer. Joaima's tropical climate, characterized by warm temperatures and ample sunshine, presents unique challenges with UV exposure. Especially between 11:00 AM and 1:00 PM, when the UV Index soars to levels 8, it's vital to stay informed and take necessary precautions to enjoy the beautiful outdoors safely.

Hourly UV Index in Joaima

As the day unfolds, the UV Index reveals a dynamic story of sun exposure. Starting at a gentle 1 at 07:00, the intensity gradually rises, reaching a moderate 4 by 09:00. The sun’s rays hit their peak between 11:00 and 12:00, where the index reaches an impressive 8. As the afternoon sets in, the UV level begins to decline, tapering off to 5 at 14:00, and dropping to 3 by 15:00. The evening sees a significant retreat, with the index falling to 1 at 16:00, and ultimately 0 after 18:00. Make sure to safeguard your skin during those peak 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	8	very high	15 min
12:00	8	very high	15 min
13:00	7	high	25 min
14:00	5	moderate	30 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 Joaima

The UV Index exhibits significant seasonal variation, with extreme levels persisting from January through April and recurring again in August, October, and November, where burn times can be as short as 10 minutes. The high-risk months for UV exposure include January to April and August to November, where precautions are particularly crucial. Conversely, while May through July sees a reduction in UV levels to very high (10-15 minutes burn time), it remains essential for both visitors and residents to take protective measures during all months, especially in peak risk periods. It is advisable to seek shade, wear protective clothing, and apply sunscreen liberally to prevent skin damage throughout the year.

Monthly Maximum UV Index for Joaima, Brazil

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

The table above highlights how UV exposure in Joaima 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.

Joaima'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
Joaima	15	15	14	13	10	8	9	11	12	14	15	16
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13