UV Index in Cacheu, Guinea-Bissau

Last updated: July 2, 2025

In Cacheu, Guinea-Bissau, being aware of the UV Index is crucial for protecting your skin and overall health. The UV Index measures the strength of ultraviolet radiation from the sun, which can lead to sunburn and long-term skin damage if not managed properly. With a typical climate of the Aw zone, Cacheu experiences high UV levels, especially between 10 AM and 2 PM, when the index peaks at a staggering 13. Understanding these UV levels ensures that you can enjoy the sun safely while minimizing your risk of harmful effects. Stay informed, take precautions, and make the most of Cacheu's beautiful sunny days!

Hourly UV Index in Cacheu

As the sun rises, the UV Index begins gently at a cool 1 at 7:00 AM, maintaining this level until 9:00 AM, when it slightly climbs to 3. By 10:00 AM, the intensity escalates dramatically to 6, foreshadowing the midday peak. The UV Index reaches its zenith at 12:00 PM, soaring to a blistering 12, and maintains a high of 13 from 1:00 PM to 2:00 PM—a crucial time to seek shade and wear protection. As the afternoon progresses, the index drops to 10 by 3:00 PM and continues to wane, landing at 3 by 5:00 PM. As daylight dwindles, the UV Index returns to a moderate 1 by 6:00 PM, making those evening strolls safer. Remember, when the sun is at its strongest around noon, take precautions to stay protected!

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	12	extreme	10 min
13:00	13	extreme	10 min
14:00	13	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Cacheu

The UV Index exhibits significant seasonal changes, peaking during the summer months. From January to November, the UV Index ranges between 9 and 10, classified as very high, with a burn time of 15 minutes. However, from March through October, the index reaches extreme levels, ranging from 12 to 14, with a considerably reduced burn time of just 10 minutes. The high-risk months are primarily March through October, particularly in August and September, when the UV Index peaks at 14. Visitors and residents are strongly advised to take precautions during these months, including wearing protective clothing, using broad-spectrum sunscreen, and seeking shade, especially during midday hours, to minimize the risk of UV-related harm.

Monthly Maximum UV Index for Cacheu, Guinea-Bissau

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cacheu. 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 Cacheu, 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 Cacheu UV Index with Other Guinea-Bissau Cities

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

Cacheu's solar exposure compared to other cities in Guinea-Bissau. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Bafata UVI	9	10	12	12	12	13	13	13	13	12	9	9
Gabu UVI	9	10	12	12	13	13	13	14	13	12	10	9
Bolama UVI	10	10	11	12	13	13	13	14	14	12	9	9
Bissau UVI	10	10	11	12	13	13	13	14	14	12	9	9
Bissora UVI	9	10	12	12	13	13	13	14	14	12	9	9
Cacheu	9	10	12	12	12	13	13	14	14	12	9	9