UV Index in Osu, Nigeria

Last updated: July 2, 2025

Understanding the UV Index in Osu, Nigeria, is crucial for protecting your skin and overall health. With intense sun exposure common in this Aw climate zone, being aware of UV levels can help prevent sunburn and reduce long-term skin damage. On sunny days, peak UV levels can reach a staggering 12 around noon, emphasizing the need for precautions during these hours. By staying informed about the UV Index, residents of Osu can enjoy the outdoors safely while safeguarding their skin against harmful rays.

Hourly UV Index in Osu

As the sun rises, the UVI begins its climb, with a mild 1 at 07:00. By 08:00, it gently increases to 2, making early morning outings quite pleasant. The intensity ramps up quickly, hitting 4 at 09:00 and then surging to 6 by 10:00. The true peak arrives during midday, as the index soars to a blistering 12 between 12:00 and 13:00, signaling a prime time for sun protection. After this apex, the UVI starts to decline, dropping to 10 at 14:00 and gradually easing to 7 by 15:00. Post-peak hours see a further retreat, resting at 4 at 16:00, cooling off to 2 by 17:00, before settling back to 1 at 18:00 and finally fading to 0 after sunset at 19:00. Monitor the UVI closely to ensure safe sun exposure throughout the day!

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	2	low	45 min
09:00	4	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	12	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 Osu

Throughout the year, UV index levels exhibit significant seasonal variation, with the highest risks typically occurring from February to October. These months, especially from March to September, consistently present an extreme exposure category with UV indices peaking at 14 in April and remaining dangerously high at 12-13 from May to September. During this period, the burn time is a rapid 10 minutes, emphasizing the urgent need for protective measures. Visitors and residents are strongly advised to minimize sun exposure, wear protective clothing, and apply broad-spectrum sunscreen diligently, particularly during these high-risk months. For those outdoors in January, November, and December, although the index is lower, with readings of 9-10, caution is still advised as these months still present a very high exposure risk with burn times of 15 minutes.

Monthly Maximum UV Index for Osu, Nigeria

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

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

Osu's solar exposure compared to other cities in Nigeria. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lagos UVI	10	10	11	13	12	11	11	11	12	11	9	8
Port Harcourt UVI	10	11	11	14	12	11	11	11	12	12	10	9
Ibadan UVI	10	11	12	14	12	12	12	12	13	11	9	9
Kano UVI	10	12	13	11	11	11	12	13	12	11	10	10
Osu	10	11	12	14	12	12	12	12	13	11	9	10
Kaduna UVI	10	12	12	12	11	12	13	13	13	11	10	10