UV Index in Ios, Greece

Last updated: June 2, 2025

Understanding the UV Index in Ios, Greece is crucial for protecting your skin and overall health. With the island's warm BSk climate and high levels of UV exposure, awareness of daily UV levels can help you prevent sunburn and reduce long-term skin damage. As the UV Index peaks at 10 around midday, residents and visitors alike should take precautions during these hours to enjoy Ios’s stunning beaches while keeping skin safety a priority. Stay informed and embrace the sun smartly!

Hourly UV Index in Ios

Throughout the day, the UV Index exhibits a remarkable rise, peaking at 10 between 12:00 PM and 2:00 PM, indicating a high risk of harm from unprotected sun exposure. Starting the morning at a mere 1 at 7:00 AM, the index steadily climbs as the sun ascends, hitting 5 by 10:00 AM and rapidly accelerating to 8 by 11:00 AM. After reaching its zenith at noon, the readings gradually decline through the afternoon, dropping to 4 by 5:00 PM and falling further to 1 by 7:00 PM. It's clear that careful sun protection is essential during the midday hours when the sun's strength is at its most intense.

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	2	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	9	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 Ios

The UV Index experiences significant seasonal fluctuations, peaking during the summer months. From January to February, the index remains at a moderate level (3 to 5), allowing for a burn time of 30 minutes. As spring approaches in March, the index rises to 7 (high), reducing burn time to 25 minutes. The most critical months for UV exposure are from April to September, where the index hits 9 to 10 (very high), with a mere 15 minutes of safe exposure. October sees a decrease to 7 (high), with an increased burn time of 25 minutes, while November and December return to a moderate level of 4 and 3, respectively, allowing 30 minutes before sunburn occurs. Visitors and residents should take precautionary measures, especially in the high-risk months of April through September, by wearing sunscreen, protective clothing, and limiting sun exposure during peak hours to safeguard against harmful UV radiation.

Monthly Maximum UV Index for Ios, Greece

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

The table above highlights how UV exposure in Ios 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.

Ios'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
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
Ios	3	5	7	9	9	10	10	10	8	7	4	3