![]() ![]() Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation. ![]() Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. ![]() Light skin individuals may get burned in less than 30 minutes. Note: In April, the average maximum UV index of 4 translate into the following recommendations: A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person. UV indexThe average daily maximum UV index in April is 4. SunshineIn April, the average sunshine in Vienna is 6.6h. On the last day of April, sunrise is at 05:37 and sunset at 20:06 CEST. On the first day of the month, sunrise is at 06:32 and sunset at 19:24. DaylightIn April, the average length of the day is 13h and 41min. Throughout the year, 683mm (26.89") of snow is accumulated. Throughout April, Vienna aggregates 15mm (0.59") of snow. April is the last month it regularly snows. SnowfallMonths with snowfall in Vienna are January through April, November and December. In Vienna, during the entire year, the rain falls for 88 days and collects up to 548mm (21.57") of precipitation. Rainfall In Vienna, it is raining for 6.3 days, with typically 39mm (1.54") of accumulated precipitation. In Vienna, in April, the average low-temperature is 7.8☌ (46☏). TemperatureIn April, the average high-temperature slightly increases from a cool 11.5☌ (52.7☏) in March to a comfortable 16.1☌ (61☏). April is a comfortable spring month in Vienna, Austria, with temperature in the range of an average low of 7.8☌ (46☏) and an average high of 16.1☌ (61☏). ![]()
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