UV Index
UV Index
Today's UV index in Rethymno, Greece 
will be up to 7.7, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-10
With Rethymno's UV index reaching 7.7, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
The UV index in Rethymno, Greece, is usually high during summer, often ranging from 7 to 10, making the sun very strong. In winter, the UV index drops to about 2 or 3, which is much lower.
Rethymno has hot, dry summers and mild, wet winters. Summer temperatures often reach around 30°C (86°F), while winter stays around 12-15°C (54-59°F). Most rain falls between November and March, with summers being mostly dry.
Compared to other parts of Greece, Rethymno is milder in winter due to its island location on Crete. It tends to be warmer and sunnier than northern Greece and neighboring countries like Bulgaria or Albania, which have colder winters and more rain.
See the UV index hour by hour for Rethymno, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.