中华万年历

白露是二十四节气中的第十五个节气，也是秋季的第三个节气。每年公历9月7日或8日，当太阳到达黄经165°时为白露。"白露"的得名源于此时清晨的露水日益加厚，在清晨阳光照射下晶莹剔透，洁白无瑕，故名白露。白露是反映自然界气温变化的重要节气，是二十四节气中昼夜温差最大的一个节气。白露时节，天气渐转凉，清晨时分会发现地面和叶子上有许多露珠，这是因为夜晚水汽凝结而成，故名白露。古人以四时配五行，秋属金，金色白，故以白形容秋露。白露过后，阴气逐渐加重，清晨的露水日益加厚，凝结成一层白白的水滴，所以就称之为白露。白露基本结束了暑天的闷热，天气渐渐转凉，寒生露凝，是秋季由热转凉的转折点。

White Dew (Bailu) is the 15th solar term among the 24 solar terms and the third solar term of autumn, occurring around September 7-8 when the sun reaches 165 degrees celestial longitude. The name "White Dew" derives from the increasingly thick morning dew at this time, which appears crystal clear and pure white under the morning sunlight. White Dew is an important solar term reflecting temperature changes in nature, characterized by the largest diurnal temperature difference among all 24 solar terms. During White Dew, the weather gradually turns cool, and in the early morning, many dew drops are found on the ground and leaves, formed by water vapor condensing at night. Ancient Chinese associated the four seasons with the five elements - autumn corresponds to metal, whose color is white, hence the autumn dew is described as white. After White Dew, yin energy gradually increases, morning dew becomes thicker, condensing into white water droplets, thus named White Dew. White Dew essentially ends the sultry summer heat, as weather gradually cools and cold generates dew, marking the turning point from hot to cool in autumn.