| Period | Weather in Hanoi | What to pack |
|---|---|---|
| December to February | Cool, sometimes cold, grey skies; about 17°C average in January | Sweater, windproof jacket, trousers, closed shoes |
| March to April | Mild then hotter; heavy humidity (the "nồm") especially late March | Cotton or linen clothes, small umbrella |
| May to September | Hot, humid, thunderstorms; up to 35°C, about 30°C in July; August very wet | Light outfits, rain poncho, quick-drying sandals |
| October to November | The most pleasant months, cooler evenings | One light layer for the evening |
Clothes
Choose cotton, linen or light synthetics, and spare outfits: humidity makes laundry dry slowly. For temples and the mausoleum, cover shoulders and knees: see the temple dress code. In winter buildings are not heated, so a light down jacket helps indoors. If you continue to Sapa or Ha Giang, pack warmer still: see Sapa.
Rain and heat
A rain jacket or small umbrella handles showers; a proper poncho also helps if you rent a scooter. Sunscreen, hat and water bottle. Hanoi's air can be poor in winter: a filtering mask may help sensitive people.
Shoes
Pavements are uneven and occupied: take trainers or closed walking sandals, and flip-flops for hostel showers. Avoid brand-new shoes for the steps at Ninh Binh or Sapa.
Power, money, phone
Sockets are types A, B and C, 230 V, 50 Hz: a universal adapter is enough (see plugs and voltage in Vietnam). For mobile data, an eSIM installed before you leave avoids queues at arrival: eSIM and SIM cards in Vietnam. Carry some cash in dong too: money and cards.
Documents and health
Visa or e-visa depending on nationality: Vietnam e-visa. Travel insurance is advisable: travel insurance for Vietnam. Carry personal medicines with the prescription; for medical advice, ask your doctor.
When to go
To choose the season, see the best time to visit Hanoi. The Hanoi Authority team, 30 October 2026.
