UV Index in Santiago de Tolu, Colombia

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors of Santiago de Tolu, Colombia, where the tropical climate brings high sun exposure year-round. Being aware of UV levels helps in preventing sunburns and protecting skin health, allowing you to enjoy the beautiful beaches and vibrant outdoor activities safely. With peak UV readings soaring to 12 around noon, it’s essential to stay informed about daily fluctuations in UV intensity. Whether you’re catching rays or exploring the local scenery, knowing the UV Index empowers you to take the necessary precautions against harmful sun exposure.

Hourly UV Index in Santiago de Tolu

As the day unfolds, the UV Index rises dramatically, peaking at 13 around 12:00 PM, signaling a maximum level of sun intensity. Early morning hours start off mild, with a low of 1 at 07:00 and climbing steadily to 6 by 09:00. The sun reaches its zenith at 11:00, with a value of 12, before gradually declining through the afternoon. By 15:00, the index drops to 6, further falling to 3 by 16:00 and finally returning to a safe 1 by 17:00. As twilight approaches, the index settles to 0 after 19:00, providing a serene close to the day. Remember to protect your skin during the peak hours from 10 AM to 2 PM, when the sun's rays are most potent!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Santiago de Tolu

The UV Index experiences significant peaks from January through May, with the highest values observed in April (15) and May (14), indicating extreme exposure risk and a burn time of just 10 minutes. While the summer months of June through August maintain a high index of 13, the risk remains consistent through September and October as well. Once the calendar turns to November, the index drops to 11, and further reduces to 10 in December, categorized as very high, with a slightly extended burn time of 15 minutes. Visitors and residents are strongly advised to adopt protective measures during these months, particularly from January to May, to prevent skin damage from the intense UV radiation.

Monthly Maximum UV Index for Santiago de Tolu, Colombia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Santiago de Tolu. 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 Santiago de Tolu, 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 Santiago de Tolu UV Index with Other Colombia Cities

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

Santiago de Tolu's solar exposure compared to other cities in Colombia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Barranquilla UVI	11	12	14	14	13	12	13	13	13	13	11	10
Cartagena UVI	11	11	13	15	13	13	12	13	13	13	11	10
Santiago de Tolu	11	12	13	15	14	13	13	13	13	13	11	10
Medellin UVI	14	15	17	16	16	14	14	15	14	14	13	12
Cali UVI	15	16	17	17	15	14	14	14	15	14	13	12
Bogota UVI	15	16	18	18	17	15	15	16	15	15	14	13