UV Index in `Usaylan, Yemen

Last updated: June 2, 2025

In Usaylan, Yemen, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. With a BWh climate characterized by hot, arid conditions, understanding UV levels can help residents and visitors protect themselves from the intense sunlight that peaks around midday. For instance, during the hottest hours, the UV Index can soar to 12, indicating a high risk of harm from unprotected sun exposure. By staying informed about these levels, you can take proactive measures to safeguard your skin and enjoy the beautiful Yemeni landscape without the worry of overexposure.

Hourly UV Index in `Usaylan

The hourly UV Index data reveals a dynamic rise and fall in sun exposure throughout the day. Starting at a gentle 2 at 7:00 AM, the index climbs steadily to reach a peak of 12 at both 11:00 and 12:00 PM, marking the sun's intensity at its highest. As the afternoon continues, the index gracefully descends, dropping to 8 by 2:00 PM and further tapering off to 5 at 3:00 PM. By 4:00 PM, the UV Index settles at a 3, gently declining to a 1 by 5:00 PM, and finally fading to 0 after 7:00 PM. This data underscores the importance of sun protection during the midday hours when UV exposure is at its most intense.

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	2	low	45 min
08:00	4	moderate	30 min
09:00	6	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	5	moderate	30 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 `Usaylan

Throughout the year, seasonal UV changes show a notable trend of extreme exposure from January to October, with the peak UV Index occurring in March, April, and May at 14. The high-risk months for sun exposure are from February through October, where the UV Index remains consistently at 12 or above, resulting in a burn time of just 10 minutes. Even in December, though the Index drops to 9, it still falls within the very high exposure category with a burn time of 15 minutes. Advising visitors and residents, it’s crucial to wear adequate sun protection during these months, including sunscreen with a high SPF, protective clothing, and seeking shade, particularly during peak sun hours to minimize the risk of skin damage.

Monthly Maximum UV Index for `Usaylan, Yemen

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

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

`Usaylan's solar exposure compared to other cities in Yemen. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Al Hudaydah UVI	9	10	11	13	12	10	9	9	9	9	8	8
Aden UVI	10	11	13	14	13	10	11	12	10	10	9	9
Taiz UVI	10	12	13	14	13	10	12	12	11	11	10	9
Mukalla UVI	11	12	13	14	14	12	12	12	12	11	10	9
`Usaylan	11	12	14	14	14	12	12	12	13	12	11	9
Sanaa UVI	12	13	15	16	15	14	13	13	14	13	11	10