Alonnisos UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index7.2
- Avg Clouds2%
- Max Temp30.3 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Alonnisos, Greece 
will reach a high of 7.2 today. This means a high level of sun exposure. See our tips below to stay safe!
Last checked: 2025-08-21
Hourly Forecast Chart
Today's Safety Tips
Be careful! The sun's rays are strong. Try to stay in the shade between 10 a.m. and 4 p.m. Wear a hat, sunglasses, and reapply SPF 30+ sunscreen every 2 hours.
Alonnisos's UV Index
The UV index in Alonnisos is generally high during summer, often reaching 9 or above, indicating strong sun exposure. In winter, the UV index drops to low or moderate levels, around 2 to 4.
Weather Seasons
Seasonally, Alonnisos has hot, dry summers with temperatures often above 30°C. Winters are mild and wetter, with temperatures usually between 10°C and 15°C. Spring and autumn are pleasant with moderate temperatures and less rain.
Alonnisos's Climate
Compared to mainland Greece, Alonnisos has milder winters due to its island location. It tends to be cooler in summer than cities like Athens. Nearby islands have similar weather, but Alonnisos is usually a bit windier because of its position in the Aegean Sea.
Hourly UV Index Trend
See the UV index hour by hour for Alonnisos. When the level is high, it's smart to find some shade.
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