UV Index in Irakleio, Greece

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Irakleio, Greece, as it directly impacts sun safety and skin health. With the Mediterranean climate characterized by warm summers and plenty of sunshine, awareness of UV levels can significantly reduce the risk of sunburn and long-term skin damage. In Irakleio, UV levels peak during midday, reaching a maximum of 10 around 1 PM, underscoring the importance of protective measures during the hottest hours. By staying informed about the UV Index, you can enjoy the beautiful sun-soaked days without compromising your skin's health.

Hourly UV Index in Irakleio

The UV Index throughout the day presents a clear narrative of rising intensity, peaking in the afternoon. Starting at 1 by 07:00, the UV levels gradually ascend, reaching 5 by 10:00. By 11:00, the index climbs to 7, and it soars to a striking 10 at 13:00—the optimal time for sun precautions. The intensity slightly wanes thereafter, dropping to 9 at 14:00 and continuing down to 4 by 17:00. As evening approaches, the UV Index dwindles to 1 by 19:00, signaling a return to safer levels. This data underscores the importance of sun safety measures during peak hours, particularly between 11:00 and 14:00.

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	10	very high	15 min
14:00	9	very high	15 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Irakleio

During the year, the UV Index fluctuates significantly, indicating changing exposure levels and recommended precautions. The high-risk months for UV exposure are April to September, when the UV Index peaks at 10, classified as very high. Specifically, visitors and residents should be particularly cautious from May through August, when burn time is only 15 minutes. In contrast, the UV Index is lower during the winter months, with January and December registering a UV Index of 3 and a burn time of 30 minutes. It is vital for individuals to take protective measures—such as wearing sunscreen, protective clothing, and seeking shade—especially during the high-risk months, to minimize the risks associated with excessive sun exposure.

Monthly Maximum UV Index for Irakleio, Greece

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

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

Irakleio's solar exposure compared to other cities in Greece. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Thessaloniki UVI	3	4	6	7	9	10	9	9	7	6	4	2
Larisa UVI	3	4	6	8	10	11	10	10	8	6	4	3
Patra UVI	3	5	6	8	10	11	10	10	8	6	4	3
Irakleio	3	4	6	8	10	10	10	10	8	7	4	3
Piraeus UVI	3	4	6	8	10	10	10	10	8	7	4	3
Athens UVI	3	4	6	8	10	10	10	10	8	7	4	3