UV Index
UV Index
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Today's UV index in Tallinn, Estonia 
will be up to 3.6, 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 3.6 in Tallinn, 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 Tallinn, Estonia, is generally low to moderate, as it's located in the northern latitude. This means that the city experiences long, dark winters and shorter, cooler summers.
Tallinn has four distinct seasons. Winters are long and cold, with temperatures often dropping below freezing. Spring brings milder temperatures and more daylight, while summers are short and cool, with highs averaging around 20°C (68°F). Autumn features crisp, cool weather and colorful foliage.
Compared to its region, Tallinn's weather is typical of other Baltic countries. However, its neighbors to the south, like Poland and Belarus, generally have warmer climates due to their more southerly locations. Russia to the east has more extreme temperatures, both hotter in the summer and colder in the winter. Overall, Tallinn's weather is milder than inner Russia but cooler than its Baltic and Scandinavian counterparts.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Tallinn. It's designed to provide you with a better understanding of the yearly weather and sun exposure.