Embracing the Swelter of China's 'Great Heat': A Cultural and Historical Journey into Dàshǔ
In the sweltering heat of mid-summer, China marks the arrival of "大暑" (Dàshǔ), or "Great Heat," the 12th of the 24 traditional Chinese solar terms. Typically falling between July 22nd and 24th, this period is recognized as the hottest time of the year, bringing with it extreme temperatures and humidity. The significance of Dàshǔ is deeply rooted in Chinese culture and history, with records of its existence dating back to ancient texts such as the "逸周书·周月解" (Yi Zhou Shu - Zhou Yue Jie).
22 July 2025
Historically, Dàshǔ has been associated with the concept of "二候" (èr hòu), the second five-day period, characterized by "土润溽暑" (tǔ rùn rù shǔ), where the soil is moist and the heat is humid due to summer rains. This period often coincides with the "三伏" (fú) days, the hottest period of summer, underscoring the extreme temperatures experienced during this time. In modern times, Dàshǔ continues to be relevant, especially in discussions about climate change and extreme weather events.
On social media platforms like Weibo, Dàshǔ has become a trending topic, with discussions revolving around seasonal greetings, traditional customs, and personal experiences amidst the heat. The sentiment is generally positive, with a focus on appreciating natural beauty and cultural heritage. Users share content related to traditional customs, such as enjoying lotus flowers, and videos showcasing scenic lotus ponds are popular. The overall tone is calm and reflective, focusing on adapting to the season and appreciating its characteristics.
Beyond social media, Dàshǔ remains an important part of Chinese culture, with various customs and practices associated with this period. For instance, the concept of "冬病夏治" (Dong Bing Xia Zhi) involves treating chronic winter illnesses during the summer, while "三伏贴" (San Fu Tie) is a specific treatment method used to enhance immunity during the "三伏天" (Three Fultians). In some regions, traditional customs such as sending decorative boats with offerings, known as "大暑船" (Da Shu Chuan), are still practiced.
As the world grapples with the challenges of climate change, the concept of Dàshǔ serves as a reminder of the importance of understanding and adapting to the natural world. While its role in daily life and farming has lessened with urbanization and modern agricultural technology, Dàshǔ remains a significant cultural and historical event in China, marking the peak of summer's heat and humidity.
