UV Index in Sayyan, Yemen

Last updated: May 3, 2025

In Sayyan, Yemen, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. With the region's BWk climate, residents and visitors alike face significant UV exposure risks, especially during peak hours. Understanding UV levels can help you take protective measures, ensuring safe sun enjoyment while safeguarding your skin against harmful rays. During the sunniest parts of the day, particularly around noon, Sayyan experiences high UV levels, reaching up to 15—a stark reminder to stay vigilant in sun protection!

Hourly UV Index in Sayyan

At sunrise, the UV Index starts at a mild 2 at 07:00, gradually climbing to 4 by 08:00. As the sun rises higher, the intensity peaks sharply at 15 around 12:00, marking the day’s highest UV exposure. The heat continues until about 13:00, when it dips slightly to 13, before tapering off to 10 by 14:00. Later in the afternoon, the UV Index significantly decreases to 6 at 15:00 and sinks to 3 by 16:00. By 17:00, it drops further to 1, and the sun sets, leaving the UV Index at a safe 0 by 19:00. It’s crucial to take precautions during those peak hours, especially between 10:00 and 14:00 when UV radiation is strongest.

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	7	high	25 min
10:00	11	extreme	10 min
11:00	14	extreme	10 min
12:00	15	extreme	10 min
13:00	13	extreme	10 min
14:00	10	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 Sayyan

Throughout the year, the UV Index remains alarmingly high, with extreme exposure categories dominating from January to November. March through May sees the highest values, peaking at 16 in April, signaling a significant risk for skin damage within just 10 minutes of sun exposure. December is the only month to dip slightly into the very high category with a UV Index of 10, allowing for a slightly longer burn time of 15 minutes. Visitors and residents are strongly advised to take precautions, especially during the high-risk months of March, April, and May, by using sunscreen, wearing protective clothing, and limiting sun exposure during peak hours to safeguard against harmful ultraviolet radiation.

Monthly Maximum UV Index for Sayyan, Yemen

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

The table above highlights how UV exposure in Sayyan 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.

Sayyan'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
Sayyan	12	13	15	16	15	14	13	13	14	13	11	10
Sanaa UVI	12	13	15	16	15	14	13	13	14	13	11	10