30YearWeather
Hoi An in January
Hoi An weather in January - Vietnam
🌧️Wet Season

Hoi An Weather in January

Plan your January trip to Hoi An, Vietnam. Based on 30 years of NASA data, expect temperatures of 24°C (high) to 20°C (low), with 45% rain probability and 8 hours of daily sunshine. The South China Sea averages 24°C in January. Pack rain gear for around 31 rainy days.

Avg High
24°C

Hottest around day 21

Avg Low
20°C

Coolest around day 30

Rainy Days
31days

45% avg rain chance

Sunshine
8hrs/day

Winter season

Sea Temperature in January

South China Sea(Biển Đông)

23.7°C

Monthly Average

Water Feel
☀️Warm

Perfect for swimming and water sports

Swim Rating
Excellent for swimming

Based on average sea surface temperature

Body of Water
South China Sea

Biển Đông

Hoi An coastline

Hoi An January Weather Calendar

Click any day to see detailed weather information

Currency

VND

Vietnamese đồng

Language

Vietnamese

Driving

Right side

Connect

Most hotels, restaurants and cafés have ...

Safety

High Safety

GPI: 1.786

Travel Intelligence

Exclusive flight analytics & health data for Hoi An

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
45/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

Jul

Low

Nov

Monthly Traffic Distribution

129
Jan
143
Feb
137
Mar
127
Apr
127
May
146
Jun
151
Jul
144
Aug
118
Sep
115
Oct
109
Nov
115
Dec
Traffic Level
Low Season

Key Connections

Ho Chi Minh City Tan Son Nhat (SGN)
Hanoi Noi Bai (HAN)
Seoul Incheon (ICN)
Busan-si Gimhae (PUS)
Kuala Lumpur (KUL)

Health & Safety Advisory

CDC travel health recommendations

10 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Chikungunya

All travelers should take steps to prevent mosquito bites. Chikungunya vaccination is generally not recommended. Travelers who wish to consider vaccination can visit “What to consider before traveling” on thechikungunya vaccinespage to learn more.

Hepatitis A

Recommended for unvaccinated travelers one year old or older going to Vietnam.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers of all ages traveling to Vietnam.

Japanese Encephalitis

Recommended for travelers whoAre moving to an area with Japanese encephalitis to liveSpend long periods of time, such as a month or more, in areas with Japanese encephalitisFrequently travel to areas with Japanese encephalitisConsider vaccination for travelersSpending less than a month in areas with Japanese encephalitis but will be doing activities that increase risk of infection, such as visiting rural areas, hiking or camping, or staying in places without air conditioning, screens, or bed netsGoing to areas with Japanese encephalitis who are uncertain of their activities or how long they will be thereNot recommended for travelers planning short-term travel to urban areas or travel to areas with no clear Japanese encephalitis season.

Malaria

CDC recommends that travelers going to certain areas of Vietnam take prescription medicine to prevent malaria. Depending on the medicine you take, you will need to start taking this medicine multiple days before your trip, as well as during and after your trip. Talk to your doctor about which malaria medication you should take.Transmission areasRural areas only; rare cases in the Mekong and Red River DeltasNone in the cities of Da Nang, Hai Phong, Hanoi, Ho Chi Minh City (Saigon), Nha Trang, and Quy NhonDrug resistanceChloroquine and mefloquineSpeciesP. vivax(55%)P. falciparum(44%)P. knowlesi,6P. malariae, andP. ovale(rare)Recommended chemoprophylaxisProvinces of Bình Dương, Bình Phước, Đắk Lắk, Đắk Nông, Gia Lai, Khánh Hòa, Kon Tum, Lâm Đồng, Ninh Thuận, Tây Ninh: Atovaquone-proguanil, doxycycline, tafenoquine2All other areas with malaria transmission (except Mekong and Red River Deltas): Atovaquone-proguanil, doxycycline, mefloquine, tafenoquine2Mekong and Red River Deltas: No chemoprophylaxis recommended (insect bite precautions and mosquito avoidance only)4Updated April 23, 2025See footnotes

+4 more

Source: CDC Travelers' Health

View Complete Health Guide

Is January a Good Time to Visit Hoi An?

👌Good option with minor considerations
Short Answer

Storm season alert for Hoi An in January: beyond the 24°C, 45% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Typhoon season active

Western Pacific zone - expect potential typhoon activity

Vaccinations required

Yellow Fever

Very high humidity

85% average humidity

Frequent rainfall expected

45% chance of rain - pack waterproofs

Peak tourist season

85% of annual peak - expect crowds and high prices

Ideal temperature range

23.9°C - perfect for sightseeing and outdoor activities

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

  • 🎯
    Adventure seekers

    1.4m waves - good for surfing and water sports

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    85% humidity creates difficult conditions

  • 💼
    Business travelers

    Storm season may cause flight disruptions

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Hoi An in January averages 24°C with 45% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Hoi An in January

What are the temperatures in Hoi An in January?

Daytime highs average 24°C, nights drop to 20°C. Temperatures remain fairly consistent.

How many rainy days in Hoi An in January?

Expect around 31 days with measurable rainfall. An umbrella is advisable.

What to wear in Hoi An in January?

Comfortable casual wear with a light jacket for evenings.

Is January peak season in Hoi An?

This is shoulder season—moderate prices and manageable crowds.