UV Index
UV Index
Today's UV index in Pärnu, Estonia 
will be up to 5.3, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-07-20
With a UV index reaching up to 5.3 in Pärnu, 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 Pärnu, Estonia, is generally low to moderate, ranging from 0 in winter to about 5 or 6 during summer months when the sun is strongest.
Pärnu experiences cold, snowy winters with temperatures often below freezing, and mild to warm summers where temperatures can rise to around 20-25°C. Spring and autumn are short, with variable weather.
Compared to other parts of Estonia and nearby countries like Latvia and Finland, Pärnu has a milder climate due to its coastal location by the Baltic Sea, which helps moderate temperature extremes throughout the year.
See the UV index hour by hour for Pärnu, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.