UV Index in Hayfan, Yemen

Last updated: August 1, 2025

Understanding the UV Index is crucial for the residents of Hayfan, Yemen, where the sun shines brightly in a BWh climate zone. Prolonged exposure to high UV levels can lead to sunburn and long-term skin health issues, making it essential to stay informed about daily fluctuations. With peak UV levels reaching a staggering 12 around midday, awareness of UV exposure risks is vital for effective sunburn prevention. By keeping an eye on the UV Index, Hayfan's community can take proactive steps to protect their skin while enjoying the beautiful, sun-soaked days that characterize their climate.

Hourly UV Index in Hayfan

At 07:00, the UV Index starts with a mild rating of 1, making it safe for morning activities. However, as the sun rises, it quickly gains intensity, peaking at a striking 12 by 12:00—the highest point of the day. The sun’s rays are strongest between 10:00 and 13:00, with a critical UV level of 11 at 11:00. As the afternoon progresses, the index begins to wane, dropping to 8 by 14:00, and further declining to 5 by 15:00. By 17:00, the UV Index decreases to a safer 1, paving the way for evening activities under less harsh sunlight. As night falls, the UV activity fades to 0 at 19:00, offering a gentle reminder of the sun's powerful presence during 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	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	11	extreme	10 min
14:00	9	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 Hayfan

The UV Index varies significantly throughout the year, with extreme levels reaching a peak of 15 in April and fluctuating between 11 and 14 from January to June. The highest risk months for UV exposure are March to May, where the index consistently remains above 14, underscoring the importance of protective measures during this period. Residents and visitors are advised to take precautions, such as wearing sunscreen, protective clothing, and sunglasses, especially during these high-risk months, to minimize the risk of skin damage. Although UV levels diminish in the later months, it is still essential to stay vigilant as the index remains within the very high category for November and December.

Monthly Maximum UV Index for Hayfan, Yemen

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

The table above highlights how UV exposure in Hayfan 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.

Hayfan'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
Hayfan	11	12	14	15	14	11	12	12	11	11	10	9
Mukalla UVI	11	12	13	14	14	12	12	12	12	11	10	9
Sanaa UVI	12	13	15	16	15	14	13	13	14	13	11	10