Hoi An Temperature by Month
The average annual maximum temperature in Hoi An, Quang Nam, Vietnam is 30°C (86°F), with daytime highs ranging from 25°C (77°F) in January to 34°C (93°F) in June. This page covers monthly averages, day-night differences, and how Hoi An compares to cities worldwide.
Hoi An Monthly Temperatures
In Hoi An, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 27°C (81°F) in June to 21°C (70°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Hoi An by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. June, the warmest month, sees 240 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
48-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in May
Historical Hoi An Temperatures: 1976-2026
Browse day-by-day temperature records for Hoi An spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Hoi An vs Vietnam
The map below shows the annual temperature across Vietnam. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Hoi An vs World: Temperature Compared
Hoi An's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation — summers are often cool and foggy, winters mild.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Hoi An?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Hoi An, January is the coolest month, with average highs of 25°C (77°F) and humidity around 84% — considered very high. In June, the warmest month, temperatures average 34°C (93°F) with 77% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Hoi An's weather — including monthly rainfall, sunshine hours, and humidity — visit our Hoi An climate page.
