UV Index in Shiraz, Iran

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Shiraz, Iran, a city known for its rich cultural heritage and sunny climate. With UV levels peaking at 13 in the early afternoon, awareness of these fluctuations is vital for preventing sunburn and protecting skin health. Shiraz, characterized by its BSk climate, boasts hot, dry summers where UV radiation poses significant risks. By staying informed about daily UV exposure, you can enjoy the beauty of Shiraz safely while minimizing the potential for skin damage.

Hourly UV Index in Shiraz

The UV Index throughout the day presents a fascinating picture of sun intensity. Starting at a mild 1 at 07:00, the index gradually climbs, reaching 3 by 08:00. As the morning progresses, it peaks at an impressive 13 at 12:00 and 13:00, signaling a critical time for sun protection. The intensity begins to decline in the afternoon, dropping to 8 by 15:00. By 18:00, it retreats back to 1, demonstrating the inevitable waning of sunlight as the day draws to a close. This data underscores the importance of being sun-smart, particularly between 10:00 and 15:00, when UV exposure is at its highest.

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	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Shiraz

The UV Index exhibits significant seasonal variations, with the highest levels occurring from March to September. During this peak period, particularly in May and June, the UV Index reaches an extreme level of 14 and 13, respectively, with a burn time of just 10 minutes. February marks the onset of high-risk months, escalating to an extreme classification by March, and sustaining this dangerous threshold through August. Visitors and residents should remain vigilant during these months, adopting necessary precautions such as applying sunscreen, wearing protective clothing, and seeking shade especially during peak sun hours. As the year progresses towards November and December, UV levels decrease, reducing exposure risks. However, it's essential to remember that UV radiation can still be harmful, even in cooler months.

Monthly Maximum UV Index for Shiraz, Iran

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

The table above highlights how UV exposure in Shiraz 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.

Shiraz'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
Shiraz	6	8	12	12	14	13	13	12	11	10	7	5