Travel tips for Hanoi

Hanoi's climate shapes how a trip north should be timed: the best period runs roughly from October to April, with a dry, mild autumn in October and November and a mild spring in March and April considered the most comfortable windows overall. Winter, from December to February, is cool and often overcast with persistent drizzle in the city, and turns genuinely cold in the mountains around Sapa, where frost is possible. Summer, from May to September, is hot and very humid, with monsoon rains and a typhoon season running roughly from July to September that can disrupt Ha Long Bay cruises at short notice.

The terraced rice fields around Mu Cang Chai turn a golden colour in September and October, which is a specific window worth planning a northwest trip around if that's a priority. The local currency is the Vietnamese dong (VND), and Noi Bai International Airport (HAN) serves as Hanoi's main gateway. The Old Quarter is compact and walkable, though its narrow streets carry heavy motorbike traffic, and crossing the road takes a steady, predictable pace rather than stopping and starting.

Taxis and ride-hailing apps are the more straightforward way to cover longer distances within the city, while trips to Ninh Binh, Ha Long Bay or the northwest are usually arranged by private car, shared minibus or organised tour given the distances involved. Sapa is reachable by overnight train or by road, and the Ha Giang loop is typically done by motorbike, either self-driven or with an easy rider as a driver. Dress for the north should account for the cooler winter months and the mountains, where layers matter more than they do in the city.

Vietnamese is the local language, and street signage in the Old Quarter and countryside markets isn't always in English, which is worth factoring into independent day trips.