Hoi An features a tropical monsoon climate with warm, humid weather year-round and two distinct seasons: a dry season from February to July and a wet season from August to January. Temperatures are consistently warm, rainfall is abundant in the wet months, and sunshine is plentiful in the dry season, making Hoi An a vibrant destination for all travellers.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Hoi An’s climate is shaped by its central Vietnamese coastal location and monsoonal influences, resulting in two main seasons. The dry season lasts from February to July, with sunny days, clear skies, and low rainfall. Temperatures range from 24°C in February and March to 33–35°C in June and July, with humidity levels generally lower than in the wet season. This period is ideal for beach activities, sightseeing, and outdoor festivals, as the sea is warm (23–29°C) and conditions are stable. The hottest months are June and July, when daytime highs can exceed 35°C, but evenings remain pleasantly warm.
The wet season extends from August to January, bringing frequent heavy rain, especially from October to December, when monthly precipitation can exceed 400–500 mm. Temperatures during the wet season are still warm, averaging 22–27°C, but humidity rises and flooding is possible, particularly in October and November. Typhoons can occasionally impact the region, and strong winds are more common. Despite the rain, there are often sunny intervals, and the city’s lantern-lit nights and festivals continue to attract visitors. Winters (November–January) are cooler, with daytime highs around 24–26°C and nights dropping to 18–21°C. Hoi An enjoys about 1,800–2,000 hours of sunshine annually, with the most sun from March to July and the least in the rainiest months. Winds are generally light to moderate, but can be brisk during storms.
| Average climate data for Hoi An, Vietnam | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 25 | 26 | 28 | 30 | 32 | 33 | 33 | 33 | 31 | 29 | 27 | 26 | 33 |
| Average minimum temperature (°C) | 19 | 20 | 21 | 23 | 25 | 25 | 26 | 25 | 24 | 23 | 22 | 20 | 19 |
| Average precipitation (mm) | 91 | 32 | 30 | 34 | 56 | 99 | 91 | 104 | 296 | 525 | 367 | 203 | 1,928 |
| Average rainfall days (days) | 5 | 4 | 5 | 8 | 14 | 20 | 19 | 23 | 19 | 15 | 7 | 5 | 144 |
| Average daily daylight hours (h) | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 11 | 11 | 11 | 12 |
| Average daily sunshine hours (h) | 7 | 7 | 7 | 7 | 7 | 5 | 6 | 5 | 6 | 6 | 6 | 7 | 6 |
| Average UV index | 9 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 9 | 9 | 11 |
The best time to visit Hoi An is from February to April, when the weather is mild (24–28°C), humidity is lower, and rainfall is minimal. These months offer the most comfortable conditions for sightseeing, beach trips, and enjoying local festivals, with abundant sunshine and pleasant evenings. May and June are also good for beach lovers, though temperatures rise.
The least favourable time to visit is from October to November, when Hoi An experiences its heaviest rainfall, frequent storms, and risk of flooding. Outdoor activities may be disrupted, and travel plans can change quickly due to unpredictable weather, though the city’s charm and lantern-lit nights remain.
Hoi An has a tropical monsoon climate with a hot, dry season from February to July and a wet season from August to January. Temperatures remain warm all year, ranging from 18°C to 35°C, with high humidity.
The rainy season in Hoi An lasts from August to January, with the heaviest rainfall in October and November. Flooding and typhoons are possible, and rain can be frequent and heavy during this period.
Summer temperatures in Hoi An (June–July) often reach 33–35°C during the day, with warm nights around 25–27°C. The heat is accompanied by high humidity, especially before the wet season begins.
Hoi An is humid year-round, with average annual humidity around 82%. Winds are generally light to moderate, but can become strong during storms or typhoons in the wet season.
Pack light, breathable clothing and sun protection for the dry season. During the wet season, bring waterproof gear, sturdy shoes, and an umbrella. Layers are useful for cooler winter nights and air-conditioned spaces.
The best beach weather is from May to July, when the sea is warm and skies are clear. Swimming is less ideal in the wet season due to rough seas and rain, but the beaches are quieter.
Hoi An never experiences snow. The coolest months are December and January, with daytime highs of 24–26°C and nights dropping to 18°C, but it remains comfortable for most travellers.
The warmest month, with the highest average maximum temperature, is August (33.1 °C). The month with the lowest average maximum temperature is January (25 °C). Overall, the average maximum temperature over the whole year is 29.4 °C.
The month with the highest average minimum temperature is July (26.1 °C). The coldest month, with the lowest average minimum temperature, is January (19.1 °C). Overall, the average minimum temperature over the whole year is 22.8 °C.
The wettest month, with the highest amount of precipitation, is October (524.7 mm). The driest month, with the least amount of precipitation, is March (30.3 mm). Over the whole year there are 1,928.1 mm of rainfall on average.
The month with the most days of rain is August (22.9 days). The month with the fewest days of rain is February (4 days). Over the whole year there are 144.3 days of rain on average.
The month with the longest days, so the most daylight, is June (Average daylight: 13 h). The month with the shortest days, so the least daylight, is December (Average daylight: 11 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is January (Average sunshine: 7.1 h). The month with the least sunshine per day is June (Average sunshine: 4.9 h). Over the whole year there are 6.3 h of sunlight per day on average.
The months with the highest average UV index are March, April, May, June, July, August and September (UV index: 12). The months with the lowest average UV index are January, November and December (UV index: 9). Over the whole year the average UV index is 11.1.
