Hanoi
Apr–Jun & Sep–NovSpring can be warm and clear; autumn is cooler and often sunny.
Jun–Aug is hot, humid and rainy. Winter can feel surprisingly cool.Vietnam stretches across several climate zones, so the best month depends on where you are going.
Northern Vietnam has cooler winters and a humid summer rainy season. Central Vietnam has a later wet season. Southern Vietnam stays warm year-round, with a clearer dry season and a wetter monsoon period. March to May is one of the easiest windows for a multi-region itinerary.
Spring can be warm and clear; autumn is cooler and often sunny.
Jun–Aug is hot, humid and rainy. Winter can feel surprisingly cool.Better odds of pleasant temperatures and clearer conditions.
Storms, heavy rain or mist can affect cruise conditions at other times.Spring brings clearer mountain weather; early autumn is cool and dry.
Winter is chilly and misty; summer can be wet and stormy.Warm weather works well for beaches and sightseeing.
Nov–Feb is the wetter period; summer is hotter.Warm, bright weather before the hottest part of summer.
Sep–Jan is the wetter period, with storms and occasional flooding possible.Hot, generally drier and sunnier.
May–Nov is the wet season, often with afternoon downpours.Usually hot with clearer skies and better beach conditions.
Jul–Sep is stormier and wetter, which can affect sea trips.Tropical storms, flooding and rough seas can affect cruises, ferries and outdoor attractions. Recheck the forecast close to travel and keep cancellation terms in mind for weather-sensitive activities.
Source: Vietnam Tourism weather & climate guide ↗