The best times to visit Incheon for ideal weather are
April 23rd to July 8th
September 3rd to November 4th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Incheon Travel Guide
Weather in Incheon
Average temperatures in Incheon vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 39th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Incheon, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 85.1°F (29.5°C) with temperatures rarely dropping below 75.5°F (24.2°C) at night.
Incheon Temperatures (Fahrenheit)
Incheon Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Incheon Perceived Temperature (F)
Incheon Perceived Temperature (C)
Average Incheon Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Incheon are February, January, and then December. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid July with an average of 3 days of significant precipitation the week of July 9th.
When can you find snow in Incheon? Weather stations report moderate or seasonal snow likely to be deepest around February, especially close to early February. The best time to ski (if at all) in Incheon is often around around February 5th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
The graph below shows the % chance of rainy and snowy days in Incheon.
Snow on the Ground
The graph below shows the average snow on the ground in Incheon (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Incheon has some extremely humid months, with other moderately humid months on the other side of the year. The least humid month is January (49.9% relative humidity), and the most humid month is July (83.3%).
Wind in Incheon is usually calm. The windiest month is March, followed by December and April. March’s average wind speed of around 7.2 knots (8.3 MPH or 13.3 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early March where average top sustained speeds reach 12.1 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Incheon.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||6.1||Light breeze||9.8||Gentle breeze|
|Feb||6.3||Light breeze||9.8||Gentle breeze|
|Mar||7.2||Gentle breeze||11.1||Gentle breeze|
|Apr||6.7||Light breeze||10.4||Gentle breeze|
|May||5.6||Light breeze||8.7||Gentle breeze|
|Jun||4.7||Light breeze||7.8||Gentle breeze|
|Jul||5.1||Light breeze||8.3||Gentle breeze|
|Aug||5.1||Light breeze||8.2||Gentle breeze|
|Sep||4.6||Light breeze||7.9||Gentle breeze|
|Oct||5.1||Light breeze||8.6||Gentle breeze|
|Nov||6.3||Light breeze||9.9||Gentle breeze|
|Dec||6.8||Light breeze||10.7||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Incheon?
Our best data indicates this area is generally safe. As of Aug 21, 2019 there are no travel advisories or warnings for South Korea; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 14, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Incheon, South Korea is April, followed by March and September. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Incheon in July. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Incheon Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 74.1°F (23.4°C) and 44.9°F (7.2°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 6 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 5 to 10 days of precipitation per month. June – August is the slowest season for tourism in Incheon, so lodging and other accommodations may cost less than usual.
Fall (September through November)
Fall daily highs range from 79.6°F (26.4°C) and 47.7°F (8.7°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 4 to 6 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.
Winter (December through February)
Weather is far too cold this time of year in Incheon to be enjoyable for warm weather travelers. The average high during this season is between 46.6°F (8.1°C) and 32.7°F (0.4°C). On average, it rains or snows a smalll amount: 2 to 3 times per month. These times of year are the second busiest with tourists.