UV Index in Macae, Brazil

Last updated: May 3, 2025

Understanding the UV Index in Macaé, Brazil is crucial for protecting your skin and overall health. With a tropical climate characterized by warm temperatures and high sun exposure, being aware of UV levels can help prevent painful sunburns and long-term skin damage. During peak hours, especially from 10 AM to 1 PM, UV levels can reach up to 8, signaling a high risk for skin injury. By staying informed about these fluctuations, residents and visitors can take proactive measures to enjoy the sun safely while prioritizing their skin's health.

Hourly UV Index in Macae

The UV Index for the day shows a clear peak during the late morning to early afternoon hours. Starting at a low of 1 at 07:00, the index rises steadily, reaching a notable 8 by 11:00 and 12:00. As the sun shines brightly, it's essential to take precautions against the UV radiation at this time. By 13:00, the index begins to decline to 7, and by 14:00, it drops further to 4. The late afternoon brings a return to safe levels, with the index falling to 2 at 15:00 and sinking to 1 by 17:00. Finally, by 18:00, the UV Index dips to 0, marking the end of the high-risk hours. Remember to stay protected when the UV levels are at their peak!

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	6	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	4	moderate	30 min
15:00	2	low	45 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 Macae

The UV Index exhibits significant seasonal variations, peaking during the winter months with extreme levels, especially from January to April, where values range from 13 to 16 and the burn time is notably short at 10 minutes. This trend continues into September and October, with similarly high indices warranting caution. As the year progresses, May to August sees a moderate decline in UV levels, categorized as very high to high, allowing slightly longer exposure times of up to 25 minutes in June and July. High-risk months include January, February, March, April, September, October, and November, when the UV Index remains in the extreme category, necessitating strong sun protection measures. Visitors and residents are advised to wear protective clothing, use broad-spectrum sunscreen, and limit sun exposure during peak hours, particularly in higher risk months to ensure safety and skin health.

Monthly Maximum UV Index for Macae, Brazil

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

The table above highlights how UV exposure in Macae 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.

Macae'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
Macae	16	14	13	11	8	6	7	9	11	13	14	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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13