The leading edge of a cold air mass reached the Wuyi and Nanling mountains on October 21. However, with the terrain blocking the cold air and a subtropical high-pressure system in control, central and southern Guangdong stayed hot and sunny.

Yuntai Garden, Guangzhou
The weak cold air mass is expected to reach the coastal areas of South China on the morning of October 22. Average daily temperatures in most parts of Guangdong will drop by 1°C to 4°C from October 22 to 23. Under the combined influence of Typhoon Champi and the cold air mass, winds over the waters off eastern Guangdong will reach force 7, with gusts of force 8 to 9.
The Leizhou Peninsula and eastern Guangdong will see cloudy to overcast skies on October 22, while most other areas will be sunny to partly cloudy. Daytime highs will range from 30°C to 32°C in southern Guangdong and 26°C to 30°C elsewhere.
Eastern Guangdong and Meizhou will see skies turn from sunny to cloudy or overcast on October 23 and 24, with scattered showers. Other parts of the province will be mostly cloudy.
Morning lows will range from 17°C to 20°C in northern Guangdong, 23°C to 25°C in southern coastal areas, and 20°C to 23°C elsewhere. Daytime highs will range from 28°C to 31°C in northern Guangdong and 31°C to 34°C in other areas.

Yuntai Garden, Guangzhou
Marine gale forecast
Under the combined influence of Typhoon Champi and the cold air mass, northeasterly winds over the waters near Shantou and the eastern waters of the northeastern South China Sea will reach force 6, with gusts of force 7 to 8, before gradually strengthening to force 7, with gusts of force 8 to 9. The winds are expected to gradually weaken around October 23.
Over the waters near Shanwei and off the Pearl River Estuary, northeasterly winds will reach force 6 on October 22, with gusts of force 7 to 8, weakening to force 5 on October 23.
Guangzhou 7-day weather forecast

Shenzhen 7-day weather forecast

Author | Liu Yue
Photos | Nanfang Plus