UV Index in Santarem, Brazil

Last updated: June 2, 2025

In Santarem, Brazil, being aware of the UV Index is essential for maintaining skin health and preventing sunburn. With the region's tropical climate, residents and visitors alike must understand how UV levels fluctuate throughout the day, particularly the significant rise between 10 AM and 2 PM, when the index can soar to dangerous levels of up to 12. By staying informed about UV exposure risks, you can enjoy the sun responsibly, safeguarding your skin while embracing the vibrant outdoor lifestyle Santarem has to offer. Remember, a little awareness goes a long way in protecting yourself from harmful UV rays!

Hourly UV Index in Santarem

The UV Index throughout the day reveals a dynamic shift in sun strength. Starting off with a gentle maximum of 1 at both 07:00 and 08:00, the intensity begins to rise, reaching a moderate level of 3 by 09:00. As the clock strikes 10:00, the index leaps to 6, and by 11:00, it surges to 9, indicating increasing caution is needed. The day peaks at a scorching 11 at 12:00 and reaches its zenith with an astounding 12 at 13:00. A gradual decline follows, with levels dropping to 10 at 14:00, then 7 at 15:00, and finally settling back to 4 at 16:00. As the sun starts to set, the index plummets to 2 at 17:00, then quiets to 1 by 18:00, before dropping to 0 at 19:00. Be sure to take care 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	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Santarem

The UV Index in this region shows extreme exposure levels year-round, with values peaking at 16 during March and April. High-risk months for sun exposure are January through April, when the UV Index remains between 15 and 16, indicating a consistent burn time of just 10 minutes. While the UV Index slightly decreases from May to July, it stays at 11 to 13 for the rest of the year, maintaining a high risk of sunburn. To ensure safety, both residents and visitors should prioritize sun protection, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade, especially during peak UV hours.

Monthly Maximum UV Index for Santarem, Brazil

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

The table above highlights how UV exposure in Santarem 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.

Santarem'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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Santarem	15	15	16	16	13	12	11	12	12	13	13	13