Hoi An weather in December
Hoi An averages 25°C by day and 21°C at night in December, with the sea at 25°C and 27 days with at least 1 mm of rain. That is about 2°C cooler than November.
Day
25°C
Night
21°C
Sea
25°C
Rainy days
27
Flight from London
12h
What December feels like
December is hot but wet in Hoi An: rainy season, so pack for showers.
The sea is warm at 25°C: comfortable for long swims.
It is rainy season, with rain on about 27 days.
Of the 48 sun destinations we track, Hoi An is the #24 warmest in December.
Want it warmer in December?
These are hotter than Hoi An this month for at most an hour and a half more flying:
Hoi An weather by month
December is highlighted. Compare with November and January, or see the full year in Hoi An.
Hoi An in December: quick answers
Is Hoi An hot in December?
December is hot but wet in Hoi An: rainy season, so pack for showers. Average highs are 25°C and lows 21°C.
Can you swim in Hoi An in December?
The sea is warm at 25°C: comfortable for long swims.
Does it rain in Hoi An in December?
It is rainy season, with rain on about 27 days.
What is the warmest month in Hoi An?
June, at an average high of 34°C. The coolest is January at 24°C.
How long is the flight to Hoi An from the UK?
About 12h direct from London, estimated from the 9,873 km distance. Check your airline for exact times.
Still choosing? See where is hot in December for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in December from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Hoi An in December?
Save the restaurants, beaches and views you find on TikTok and Instagram for Hoi An straight to a map, then let Dream Trip turn them into a day-by-day plan.
