UV Index
UV Index
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Today's UV index in Istanbul, Turkey 
will be up to 3.5, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 3.5 in Istanbul, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
The UV index in Istanbul, Turkey, varies throughout the year, with the highest levels occurring during the summer months, often reaching index 8 or above. This is due to the city's geographical location, facing the sun during its peak hours.
Istanbul experiences four distinct seasons. Spring, from March to May, is mild and rainy. Summers, from June to August, are warm and humid. Autumn, from September to November, is cool and dry. Winters, from December to February, can be cold and snowy, although temperatures rarely drop below freezing.
Compared to its region and neighboring countries, Istanbul's climate is relatively mild. The city enjoys more rainfall and less extreme temperatures than many other parts of Turkey and neighboring countries like Greece and Bulgaria. This is due to its location, straddling two continents and surrounded by water on two sides.