Hoi An Weather by Month: Guide to Hoi An Monthly Weather

Hoi An won the title “Asia’s leading cultural destination” recently in a reputable global travel award. It’s a pretty riverine-coastal town with an ancient root, surrounded by peaceful pieces of countryside. 5,3 millions is the largest number of tourists who visit and stay overnight in Hoi An. So, why do people love this world heritage site city? Above all, its old town is the first reason. It is a well-preserved trade port that flourished from 15th to 19th centuries, with diverse merchandise. Unlike others in the region, Asian cultures dominate here. Nowadays, the townies still continue their grandfather and father businesses, typically tailors. Lanterns are another attraction, anywhere in town. No travellers want to miss the brilliant scene of lanterns at night, foremost, the Full Moon festival. Close sandy beaches, abundant cuisine, and more things that urge people to go.

This guide is dedicated to the weather in different seasons and all months of the year in Hoi An. Thanks to that, it’s easier for travellers to make a plan, avoid or improvise severe phenomenon such as typhoons, floods or pouring rains. We highly recommend reading the guide to the best time to visit Hoi An, to know deeper analysis and comparisons.

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Table of content

Hoi An Weather All Year Round

Seasons in Hoi An

Hoi An Dry Season

Hoi An’s dry season stretches from February to August, featuring high temperatures, many daylight and sunshine hours, and a low rainfall. The warmest time is from June to August, with an average high temperature of 33oC. The driest month of the year – March is also in this season. If planning to visit Hoi An in the dry season, travellers need to prepare a set of sun protection gear, swimsuit and lightweight, cool clothes to wear.

Hoi An Rainy Season

The rest of the year, from September to January, is the wet season in Hoi An. Its characteristics are rain for many days and high chance of typhoons. The first one makes the temperature go down, with the smallest average high degrees of 25oC and low degrees of 19oC in January. October is the rainiest month, with more than 20 days of rain. If traveling at this time, visitors need to bring a rain poncho/umbrella at least, and other necessary things are waterproof shoes, jacket (the end of year).

Hoi An Typhoon Season

The span of time from September to November has the highest potential of typhoons in the wet season. No surprise, it’s the wettest period of the whole year because of pouring rains, and has the most severe weather. When typhoons occur, skies are covered by dark clouds, and the sea is with big waves caused by strong winds. Due to estuary location, Hoi An old town and nearby lowlands are flooded.

Hoi An Temperature

Hoi An Temperature by Month

– January: 22,5oC– February: 24,4oC – March: 26,8oC– April: 29,2oC– May: 31,3oC– June: 31,8oC– July: 31oC– August: 30,8oC– September: 29,5oC– October: 27,1oC–November: 25,5oC–December: 23,1oC

Hoi An Water Temperature

– January: 23,3oC– February: 22,9oC – March: 24oC– April: 25,2oC– May: 27,4oC– June: 28,8oC– July: 29,2oC– August: 29,8oC– September: 29,6oC– October: 28,1oC–November: 26,5oC–December: 24,7oC

Hoi An Rainfall by Month

– January: 92mm– February: 32mm – March: 30mm– April: 43mm– May: 56mm– June: 99mm– July: 90mm– August: 104mm– September: 297mm– October: 526mm–November: 363mm–December: 206mm

The Best Month to Visit Hoi An

The best month to visit Hoi An depends on what travellers like to do, experience and bare time. If expecting outdoor activities like on the beach or underwater adventures, the most ideal period is from February to mid-September when it doesn’t rain. To avoid crowds, overpriced offers and simply have comfort, out of the domestic high seasons are finest. There are January, mid-February to mid-April, mid-May to early September. Christmas and New year is also good, because of the coolest temperature of the year and “typhoon season” already ends. Shouldn’t come to the city when the floods occur, due to poor activities. See full information in our article for the best time to visit Hoi An.

Hoi An Weather in January

January is the last month of the wet season in Hoi An, which started with fireworks in the city square. Temperature hasn’t been much different from December. Its average high degrees is 25oC and average low degrees is 19oC. Rains may occur in 13 days, but the rainfall drops down to the lowest rate of the year at the end of the month. The daylight hours are 11,5 hrs a day, with the lowest UV index. Sunshine hours are also high, 7 hours, making January nice for beach lovers and outdoor enthusiasts to enjoy their favourite activities.

In some years, Tet holiday (Vietnamese new year) falls in January. It often lasts a week, including days before and after the eve. For locals, this time is for family reunion, and members prepare everything together to celebrate. For travellers, it’s definitely a wonderful chance to know better local culture and customs. However, due to the biggest celebration of the year, high travel prices, crowds, and shortage of hotel rooms are things that travellers should know.

Hoi An Weather in February

February is the first month of Hoi An’s dry season. Throughout its weeks, the temperature rises but the intense heat doesn’t occur yet and the rain stops falling. Sunshine hours are over 7 hours a day, coupled with minimum rainfall, making this time beautiful for a beach visit or stroll around the Ancient town. Average UV index is higher than January, reaching the maximum in the midday. Remember to bring your own sun cream, sun glasses and other sun protection gears before flying to Hoi An. If would like to buy in the city, there are many shops selling local and imported brands to check out.

For Vietnamese, February is known as “New year month”. It’s one of the busiest times of the whole year because people have to prepare things for a week of holiday. Transport hubs, markets, shophouses, eating and drinking venues (except tourist attractions) are all bustling. Streets are decorated by a density of colorful neon lights and flowers. Thus, days before the eve night are wonderful for travellers to see a lively scene of locals and photograph. Three first days are most important when visits to relative and friend houses are made. If traveling to Da Nang in this biggest festival, travellers will face overloading of tourist places, crowds everywhere, and high costs. Keep in mind to book a room early to avoid overbooking.

New Year Festival (Tet Holiday) is 11st February 2021, 1st February 2022, 22nd January 2023, 10th January 2024, and 29th January 2025.

Hoi An Weather in March

In March, it already turns into summer weather, with lots of sun and very low rainfall (least of the year). Particularly, the average high temperature of this month is 28oC, annd 21oC is for the average low temperature. Length of the day is 12.1 hours. Thanks to moderate and sunny weather, visitors gradually return to the beaches after the wet season. The chance to see sunrise and sunset is daily. Read our guide to Hoi An’s beaches prior to swimsuit on and soak in tropical waters.

Different from the previous month February (and the end of next month, April), tourist crowds aren’t seen much in March. Main reason is that domestic visitors have to return home for work. Travel prices are common, restaurants are run with a regular reschedule, and hotel room options are plenty. Thus, March is a shoulder season, one of the best months to visit Hoi An. The most special traditional event is Le Cau Ngu “the whale festival”. It’s held on the 12th, 16th, 28th day of the second lunar month by fishers in different coastal villages. This aims to honour the whale who saves and patronizes them on the sea.

Hoi An Weather in April

Weather in April is quite similar to March, but the temperature is a bit higher, averaging 23oC and 30oC. Both daylight and sunshine hours are many, 12,5 and 7 hours a day. Rainfall at this time is really low, 34mm on average, making it one of the driest months of the year. It’s nice to go to the beach for swimming, surfing and lounging under the coconut palms. The highest UV index is in the midday (from 11 a.m to 3 p.m), so locals often don’t visit. If don’t bring your own swimsuit, travellers can buy it in shops by the coast of An Bang and Cua Dai. Thanks to moderate weather, catches of fresh seafood arrive on the mainland every morning. Make sure that you know atmospheric An Bang beach’s restaurants to taste yummy platters made by them.

In the last week of April, people celebrate the Unification Day (Ngay thong nhat), commemorating the 30th April 1975 when two parts of Vietnam became one. Due to the International Workers Day, a holiday is designed and often lasts nearly a week if it coincides with the weekend. In this time, domestic tourism booms and most tourist venues and services are overbooked. Traveling to Da Nang at once? Keep in mind to book accommodation in advance. Like any other local holiday, prices are more expensive and crowds are everywhere, from transport hubs, attractions, restaurants to even streets.

Hoi An Weather in May

May is hotter than previous months, with a slight increase in temperature. Average high and low degrees are 32oC and 25oC respectively. It rains for 9 days or smaller, therefore the rainfall is low. Daylight hours between dawn and dusk are 12,9 hours. First days of May are still a Vietnamese reunification holiday, so it’s crowded and overpriced. A room reservation is extremely necessary, to get a good price and avoid overbooking. After that, the number of tourists slightly decreases but quickly rises again when the student’s summer break begins. If would like to explore gorgeous marine life at this time, seeking a snorkeling, diving or sea trekking tour in Cham Island. It’s 20 minutes by canoe from Hoi An coast.

Le Phat Dan (“Buddha birthday”) is the local festival that travellers can join in May. It takes place in Buddhist temples in the full moon of the 4th lunar month. Ceremonies, processions on the streets and vegetarian feasts are things to expect. Many local restaurants and eateries serve vegan dishes only. Therefore, travellers have a great chance to try foods never sold in common days, and know better a featured slice of local cuisine. This religious event is on 26th May 2021, 14th May 2022, 1st June 2023, and 21st May 2024.  

Hoi An Weather in June

June is the beginning of the warmest period of the year (until August), with an average high temperature of 33oC. The real feel is up to nearly 40oC usually, especially throughout the midday. It has the longest day also, with an average of daylight as 13,1 hours. The rainfall again is low. So, there are no reasons to cancel a beach or island visit this month. Due to the noon heat, locals tend to go to bodies of water in the early morning, late afternoon and evening. If would like to swim or lounge on the sands, following the reschedule. Preparing a set of skin protection gear, and of course, personal swimsuit.

In Da Nang (30km to the north), semi-final competitions of the International Fireworks Festival are held, definitely are awesome to watch. Travellers can expect superb creative, colorful performances of lights on a passionate background music. The female night is on the first Saturday of July. Due to signature and reputable events of the city, should make a ticket reservation in advance to ensure the seats. See more information in our article for Da Nang’s festivals.

Hoi An Weather in July

July is the middle of the hottest period in the year that stretches from June to August. The average temperature is quite fair in June, particularly 26oC and 33oC. Although featuring a higher rainfall than previous time, generally, it’s much lower than the wet season starting from September. Because of high heat, visitors choose to depart on their day of exploration in the early morning. Locals often go back to their room or an air-conditioning place for a drink, and walk out when the temperature begins to decrease. Evening is a nice time to walk around the Old Town or head over to the breezy coast for dining. Visiting a waterpark or watching a visual cultural show can be a priority for families.  

Thanks to moderate weather (no typhoons and heavy rains), Hoi An is the favourite city to visit for domestic travellers in July. Its sandy beaches, the Old town, theme parks and islands with diving spots are all busy with Vietnamese families. Water, underwater activities, outdoor celebrations, and evening entertainments are active, available to join everyday. Another reason to explain why this time is loved, is the summer break of the childrens (May to end of August). Local parents try to arrange a deserving trip for them. International tourists are not many in July because of high temperature, but if would like, radar the best hotel for yourself and book early.

Hoi An Weather in August

The weather is still hot in August, with average high temperature fluctuating between 33oC and 25oC. Skies are still clear, water is still warm, and open-air activities are still active, to take part in. Hence, a beach holiday in this month is feasible and suitable for local and expat families. Travel prices are a bit cheaper, as a result of decreasing domestic tourists. At the end of August, people have some off-work days during the Independence holiday, and travel again. Hoi An old town is busy with pedestrians and sightseers. If seeking an experience about real local life, go to Tra Que village and join a farmer’s daily work. Guided and self-guided tours are easy to make.  

The most featured cultural event is Le Vu Lan (“Parents day”) or Tet Co Hon (“wandering souls”). It takes place on the 14th day of the 7th month in the lunar calendar. This humanistic, meaningful celebration aims to commemorate dead people who aren’t rebirthed yet and wander around to seek food and a place to sleep. That’s why locals prepare delicious dishes, burn incense sticks, light candles, chant Buddha teachings and pray. If someone don’t have parents anymore, they use the day to memorize father or mother who passed away.

Hoi An Weather in September

September is the beginning of the wet season. During it, the temperature drops slowly, fluctuating from 24 to 31oC on average. Rains occur in 19 days, causing a significant rise of rainfall and the average rate is 297mm. Thanks to not too hot and not too wet, this month is another good time to visit Hoi An. In the first week, crowds of local tourists appear because of the Independence holiday (the last of the year). The Old Town and beaches are busy with swimmers and families. Top tip if traveling in it, is to reserve an accommodation in advance. It’s more relaxing when visiting in the second week onwards, however, bringing a rain poncho to wear in case of the rain falls occasionally.

The Mid Autumn Festival (Tet Trung thu) is the highlight of September and the year. It’s held on the 14th day of 8th lunar month, in the full moon. During the night, millions of colorful lanterns are lit, hung up or dropped down to the river. This incredibly stunning scene draws plenty of visitors who quickly fill the Ancient town after the sunset. It’s iconic to Hoi An and unmissable. Outdoor folk performances, games, dragon and lion dances, sounds of cyclo and vendors, stir up the atmosphere. Together with a diverse street food, an experience in the Mid Autumn Festival is memorable.

Hoi An Mid-Autumn Festival is 20th September 2021, 9th September 2022, 28th September 2023, 16th September 2024.

Hoi An Weather in October

October is the wettest month of the year, with 21 rainy days and the highest rainfall. Average low and high temperatures decrease to 23oC and 29oC respectively. This makes the atmosphere more pleasant, perfect to walk around the town when rains stop pouring. Bring your own rain poncho or umbrella, waterproof shoes (if have) and more layers to wear before leaving the room. Due to cloudy skies, wet sands and cold water, the beach is just visited by local excercisers instead of plenty of tourists like in the summer. Water sports and games are not available or allowed to be arranged anymore, partially to ensure player’s safety. Cham island diving and snorkeling tours are closed, because of big and dangerous waves.

Typhoons often hit the wider area of Hoi An in October (and November), causing floods in the Old town and lowlands. How high it is depends on the rainfall and discharge plan of Thu Bon river’s dams. When the water rises, locals use a truckle to lift everything from the ground to the upper floor. Boats help to access inundated zones, and take tourists to see the “Venice of Vietnam”. See our article here to know further information about this boat ride.

Hoi An Weather in November

November is another so-wet month with highly potential typhoons and floods. It may have the worst weather of the year, so, not many domestic tourists plan to visit Hoi An this time. Similar to October, beaches, islands and other open-air activities are closed to ensure visitor’s safety. Prepare a light jacket when going out and of course, a rain gear set and waterproof shoes if have day trips away from the city center. Possibility of the floods is high, therefore travellers should choose an accommodation where they can stand outside of regularly inundated areas, like Old Town. Read our guide to the best area to stay in Hoi An to know more.  

November is actually not nice to take a trip to mountains in Hoi An’s outskirts, except the My Son Sanctuary. The Golden Bridge and surroundings are soaked in dense fog, so sightseers can’t see everything. It’s extremely wet, misty and cold in this place. A ride to Hai Van Pass or the top of Son Tra Mountain is also quite a bad experience, because the outlooks are blocked by clouds and dangerous roads. However, if the rain doesn’t pour, it’s nice to tour around the city by bicycle or motorcycle.

Hoi An Weather in December

Average temperature of December varies between 20oC and 26oC. No doubt, it’s amongst the coolest months of the year. Locals call this time “the winter” and wear a coach when leaving home or office. In the first half, the tourism is low and tourists mainly are from abroad. An indoor hands-on experience like cooking class or handicraft workshop may be the best fit to hide from the rains.

Around Christmas and New Year then, holiday and winter travellers arrive at Hoi An much more and the scene of tourism becomes vibrant one more time. Hotels, restaurants, and public places are decorated by colorful lights, flowers and trees with cheerful, joyful music. People are excited for a new year coming, with a smiling face. Guided tours are potentially overbooked, such as to My Son temples or Golden Bridge. 

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