Hoi An weather in May
Hoi An averages 32°C by day and 26°C at night in May, with the sea at 28°C and about 89 mm of rain in the month. It warms up by about 2°C into June.
Day
32°C
Night
26°C
Sea
28°C
Rain
89 mm
Flight from London
12h
What May feels like
May is hot in Hoi An: proper beach weather.
The sea is warm at 28°C: comfortable for long swims.
Expect some rainy spells: about 89 mm falls in the month.
That is 15°C warmer than an average May day in London.
Of the 56 sun destinations we track, Hoi An is the #7 warmest in May.
Going to Hoi An in May?
Share the TikToks and Instagram Reels you've saved for Hoi An to Dream Trip. It finds the places, pins them on a map and builds your days around them.
Want it warmer in May?
These are hotter than Hoi An this month for at most an hour and a half more flying:
Hoi An weather by month
May is highlighted. Compare with April and June, or see the full year in Hoi An.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 24°C | 20°C | 24°C | 167 mm |
| February | 25°C | 20°C | 24°C | 85 mm |
| March | 27°C | 22°C | 25°C | 67 mm |
| April | 30°C | 24°C | 26°C | 65 mm |
| May | 32°C | 26°C | 28°C | 89 mm |
| June | 34°C | 27°C | 30°C | 103 mm |
| July | 33°C | 27°C | 30°C | 153 mm |
| August | 34°C | 27°C | 31°C | 154 mm |
| September | 31°C | 25°C | 31°C | 285 mm |
| October | 28°C | 24°C | 29°C | 506 mm |
| November | 27°C | 23°C | 27°C | 432 mm |
| December | 25°C | 21°C | 25°C | 376 mm |
Hoi An in May: quick answers
Is Hoi An hot in May?
May is hot in Hoi An: proper beach weather. Average highs are 32°C and lows 26°C.
Can you swim in Hoi An in May?
The sea is warm at 28°C: comfortable for long swims.
Does it rain in Hoi An in May?
Expect some rainy spells: about 89 mm falls in the month.
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 May for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in May 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. Rain is the average monthly total. 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 May?
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.
