UV Index in Yazd, Iran

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Yazd, Iran, where the dry desert climate leads to intense sun exposure. High UV levels, particularly between 10 AM and 2 PM, pose significant risks of sunburn and long-term skin damage, making awareness paramount for skin health. With peak UV Index values soaring to 12, it’s essential to monitor daily UV levels to ensure proper sun safety measures are taken, allowing you to enjoy Yazd’s historic beauty while safeguarding your skin.

Hourly UV Index in Yazd

The UV Index throughout the day exhibits a dynamic rise and fall, showcasing its peak intensity around midday. At 07:00, the index starts off at a modest 1, climbing steadily to 3 by 08:00. The real action begins at 09:00, where it skyrockets to 6, and by 10:00, it reaches a noteworthy 8. As the sun reaches its zenith, the index hits a blistering maximum of 12 from 12:00 to 13:00, signaling a critical time for sun safety. The intensity begins to taper in the afternoon, dropping to 10 at 14:00, then descending gradually to 5 by 16:00. As evening approaches, the index dwindles, returning to a safe 1 by 18:00, and remaining there through 19:00. Be mindful of these changes to protect yourself under the sun!

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	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Yazd

The UV Index exhibits significant seasonal changes, peaking from March to September when it reaches extreme levels of 11 to 13, indicating a high risk of harm from unprotected sun exposure. Notably, May and June are the months with the highest UV Index measurements, making them particularly hazardous for outdoor activities, with a burn time as short as 10 minutes. Conversely, the winter months (January and December) show lower UV indices of *5 and 4, categorized as moderate, offering a relatively lower risk of sunburn. Visitors and residents are advised to take extra precautions during high-risk months from February through September, such as wearing sunscreen, protective clothing, and seeking shade during peak hours to mitigate the risk of skin damage.

Monthly Maximum UV Index for Yazd, Iran

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

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

Yazd's solar exposure compared to other cities in Iran. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Karaj UVI	4	5	8	9	12	12	11	10	10	7	4	3
Mashhad UVI	4	5	8	10	12	12	12	11	10	7	4	3
Tehran UVI	4	6	8	9	13	12	11	10	10	7	5	3
Tabriz UVI	4	5	9	10	12	12	12	11	9	7	4	3
Isfahan UVI	5	7	10	10	13	13	12	11	10	9	6	4
Yazd	5	7	11	11	13	13	12	11	11	9	6	4