UV Index in Cartagena, Colombia

Last updated: July 2, 2025

In Cartagena, Colombia, understanding the UV Index is crucial for protecting your skin health and preventing sunburn. With a tropical climate characterized by high ultraviolet (UV) exposure, especially during midday hours, awareness of UV levels can help you plan your outdoor activities more safely. From the early morning at a gentle index of 1, the UV levels surge to a peak of 12 between noon and 1 PM, underscoring the need for sun protection. By staying informed about the UV Index, you can enjoy the vibrant city while safeguarding your skin against the harmful effects of sun exposure.

Hourly UV Index in Cartagena

Starting the day at a gentle UV Index of 1 at 7:00 AM, the sun gradually intensifies, climbing to a moderate 3 by 8:00 AM. As the hours pass, the UV Index surges to reach its peak at 12 by noon, indicating a high risk of harm from unprotected sun exposure. The intensity holds firm at 12 through 1:00 PM, before beginning to taper off in the afternoon. By 3:00 PM, the index decreases to 6, and continues its descent, returning to a safe 1 by 5:00 PM. As evening approaches, the UV Index gently falls to 0 by 7:00 PM, signaling a day that emphasized the importance of sun safety during those peak hours. Whether you're spending time outdoors or just taking a stroll, be sure to protect your skin during those critical midday 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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	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 Cartagena

The UV Index varies throughout the year, remaining predominantly in the extreme category, particularly from January through November and peaking at 15 in April. March to October consistently shows some of the highest readings, with UV Index values of 13 or more for most months, indicating that April to September are the high-risk months for UV exposure. Visitors and residents are strongly advised to take protective measures during these months, such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade whenever possible. Even in December, when the UV Index is still very high at 10, exposure should be minimized, particularly if you plan to spend extended periods outdoors. Stay aware and prioritize skin safety all year round.

Monthly Maximum UV Index for Cartagena, Colombia

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

The table above highlights how UV exposure in Cartagena 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.

Cartagena'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	11	11	13	15	13	13	12	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