As the 15th solar term in the traditional Chinese 24 Solar Terms, White Dew (usually falling between September 7 and 9) marks nature’s subtle shift from late summer’s warmth to early autumn’s crispness. Its name comes from a vivid seasonal sight: as nighttime temperatures drop significantly, water vapor in the air condenses into tiny, glistening dewdrops that settle on grass, leaves, and flowers each dawn—painting the morning with a fresh, silvery glow.

This term is also defined by distinct phenological changes, known as the “Three Pentads of White Dew.” First, wild geese begin their southward migration to warmer lands; then, swallows (called “xuan niao” in Chinese) follow, leaving their summer nesting grounds behind; finally, birds across habitats start storing seeds and insects, preparing for the upcoming winter.

Culturally, White Dew carries heartwarming traditions. In southern China, people savor plump, sweet longans, believing they nourish the body for the cooler months. Tea lovers eagerly await “White Dew Tea”—picked at this time, it boasts a mellow, smooth flavor, free from spring tea’s tenderness or summer tea’s bitterness. Even ancient folks cherished collecting morning dew at dawn, viewing it as pure and invigorating.

More than just a solar term, White Dew is a reminder to slow down, notice nature’s quiet beauty, and ease into autumn’s gentle embrace.

Come to Mutianyu Great Wall and immerse yourself in the autumn charm of this magnificent landmark—you’ll also get to join in lots of fun activities!