UV Index in Colombo, Brazil

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Colombo, Brazil, where the Cfb climate offers a mild atmosphere but still presents various UV exposure risks throughout the year. Being aware of UV levels helps prevent skin damage, including painful sunburn and long-term health issues like skin cancer. In Colombo, the UV Index can peak at 6 around midday, highlighting the need for effective sun protection measures during the sun's most intense hours. By staying informed about the UV Index, you can better safeguard your skin while enjoying the beautiful outdoors.

Hourly UV Index in Colombo

The UV Index today showcased a notable increase from the early morning hours, starting at a gentle 1 at 07:00 and 08:00. As the sun rose higher in the sky, the index climbed steadily, reaching a significant 6 by 12:00, indicating a peak in UV radiation and the need for sun protection. The afternoon saw a slight decline, with values dropping to 4 at 14:00 and falling further to 2 by 15:00. As the day wound down, the UV index returned to a safer range, ending the day at 0 by 19:00. It’s crucial to stay informed and safeguard your skin during those high UV 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	2	low	45 min
10:00	4	moderate	30 min
11:00	5	moderate	30 min
12:00	6	high	25 min
13:00	5	moderate	30 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 Colombo

The UV Index experiences significant seasonal fluctuations, with the highest values occurring from January to April, where it consistently reaches extremes of 16 to 11, indicating a very high risk of harm from unprotected sun exposure; in these months, burn time is as brief as 10 minutes. As spring transitions to summer, the index decreases, peaking at 8 in May and then dropping to 6 from June to July, marking a high risk category with a slightly extended burn time of 25 minutes. However, August sees a rise back to 9 (very high), followed by a return to extreme levels in September and October. November and December maintain high values of 15, suggesting that extreme caution is needed year-round. Visitors and residents should prioritize sun protection during these high-risk months, applying sunscreen, wearing protective clothing, and seeking shade to reduce the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Colombo, Brazil

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

The table above highlights how UV exposure in Colombo 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.

Colombo'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
Colombo	16	15	13	11	8	6	6	9	11	14	15	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