UV Index in Tehran, Iran

Last updated: May 3, 2025

Understanding the UV Index in Tehran, Iran, is crucial for protecting your skin from harmful ultraviolet rays. With peak UV levels reaching 13 in the midday sun, awareness of these fluctuations can help prevent sunburn and maintain skin health—essential in a city known for its Mediterranean climate (Csa) and intense summer sunshine. By staying informed about UV levels, residents and visitors alike can enjoy outdoor activities safely while minimizing long-term skin damage. Always check the daily UV index to make informed choices about sun exposure and protective measures!

Hourly UV Index in Tehran

As the sun rises, the UV Index gradually climbs, beginning at a mild 1 by 07:00. By 08:00, it increases to 3, signaling the start of a sun-soaked day. Come 09:00, it jumps to 6, and by 10:00, it soars to a peak of 9. The intensity reaches its zenith at 11:00 with an impressive 11, followed by a blistering high of 13 at 12:00. The afternoon sees a slight decline, with the index dropping to 12 at 13:00, and then stabilizing at 11 from 14:00 to 15:00. As the sun begins its descent, the UV Index decreases to 5 at 16:00, and falls to 3 by 17:00. Finally, as twilight sets in, the UV levels drop back to 1 at 18:00 and remain steady until 19:00. Stay sun-smart! 🌞

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	13	extreme	10 min
13:00	12	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 Tehran

Throughout the year, the UV Index exhibits notable changes, indicating fluctuating levels of sun exposure risk. The high-risk months are primarily March to August, where the UV Index peaks at 13 in May, classified as extreme with a rapid burn time of just 10 minutes during that period. April to August also show sustained levels of very high to extreme UV exposure, urging both visitors and residents to take extra precautions. It is advisable to limit sun exposure during these months, seek shade, wear protective clothing, and use high-SPF sunscreen to safeguard against harmful UV rays. As the year progresses into September and October, UV levels slightly decrease but remain significant, necessitating caution until winter months bring about more moderate conditions.

Monthly Maximum UV Index for Tehran, Iran

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

The table above highlights how UV exposure in Tehran 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.

Tehran'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	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