Northeastern Vietnam and southern Phu Tho, formerly Hoa Binh Province, will be cloudy, with scattered showers and thunderstorms. Some lowland areas may experience heavy rain. Thunderstorms could bring whirlwinds, lightning, hail and strong gusts.
Rain is expected to bring slightly cooler temperatures, with highs of 28-31 degrees Celsius and lows of 22-25 degrees Celsius. Mountainous areas may see temperatures below 21 degrees Celsius.
Other northern provinces, including Dien Bien, Lai Chau, Son La, Lao Cai and Ha Giang, are forecast to remain mostly dry, with light winds. Temperatures will range from 21-24 degrees Celsius at night, falling below 20 degrees Celsius in some places, and reach 29-32 degrees Celsius during the day.
Hanoi will be cloudy, with scattered showers and thunderstorms during the day and isolated showers and thunderstorms at night. Some areas may experience heavy rain. Thunderstorms could bring whirlwinds, lightning, hail and strong gusts. Temperatures are forecast to range from 23-25 degrees Celsius at night to 28-30 degrees Celsius during the day.
Rainfall on October 30 is forecast to reach 10-30mm across the Red River Delta and southern Phu Tho, with some locations potentially receiving more than 60mm.
The weather is expected to turn sunny with little rain on October 31. From November 1, thunderstorms may return to mountainous areas in the north.