The best times to visit Yeosu for ideal weather are

April 16th to July 15th


August 27th to November 11th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Yeosu Travel Info

Weather in Yeosu


Average temperatures in Yeosu vary drastically. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a fair chance of precipitation about half of the year. The area is somewhat temperate — in the 43rd 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 Yeosu, 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 84.7°F (29.3°C) with temperatures rarely dropping below 75.8°F (24.3°C) at night.

Yeosu Temperatures (Fahrenheit)


Yeosu Temperatures (Celsius)


“Feels-Like” Temperatures

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.

Yeosu Perceived Temperature (F)


Yeosu Perceived Temperature (C)



Average Yeosu 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.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 42.9 36.3 29.9
Feb 46.8 40.1 33.4
Mar 53.7 46.8 39.5
Apr 61.9 55.2 48.6
May 70.9 64.3 58.3
Jun 75.1 70 66.1
Jul 80.9 76.4 72.7
Aug 83.3 78.4 74.4
Sep 78.2 72.8 68.1
Oct 70.4 63.8 58
Nov 58.3 52 46.2
Dec 46.7 40.2 33.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 6.1 2.4 -1.2
Feb 8.2 4.5 0.8
Mar 12.1 8.2 4.2
Apr 16.6 12.9 9.2
May 21.6 17.9 14.6
Jun 23.9 21.1 18.9
Jul 27.2 24.7 22.6
Aug 28.5 25.8 23.6
Sep 25.7 22.7 20.1
Oct 21.3 17.7 14.4
Nov 14.6 11.1 7.9
Dec 8.2 4.6 1



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Yeosu are January, December, and then October. 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 July with an average of 3 days of significant precipitation the week of July 2nd.

When can you find snow in Yeosu? Weather stations report a bit of annual snow likely to be deepest around December, especially close to late December. The best time to ski (if at all) in Yeosu is often around around January 15th 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.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Yeosu.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Yeosu (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 7% 0.4 1.1
Feb 12% 0.8 2.4
Mar 19% 0 4
Apr 22% 0 5
May 21% 0 6.3
Jun 25% 0 5.7
Jul 31% 0 11.1
Aug 28% 0 12.2
Sep 20% 0 6
Oct 10% 0 2.3
Nov 14% 0 2.5
Dec 9% 1.2 1.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 7 1 2.8
Feb 12 2 6.1
Mar 19 0 10.2
Apr 22 0 12.7
May 21 0 16
Jun 25 0 14.5
Jul 31 0 28.2
Aug 28 0 31
Sep 20 0 15.2
Oct 10 0 5.8
Nov 14 0 6.4
Dec 9 3 2.8


Humidity and Wind

Yeosu has some very humid months, and slightly dry months in the opposite season. The least humid month is January (37.3% relative humidity), and the most humid month is July (80.3%).

Wind in Yeosu is usually moderate. The windiest month is December, followed by January and March. December’s average wind speed of around 9.2 knots (10.6 MPH or 17.1 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 15.9 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Yeosu.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

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 9.2 Gentle breeze 14.9 Significant breeze
Feb 8.8 Gentle breeze 14.4 Significant breeze
Mar 8.8 Gentle breeze 14.7 Significant breeze
Apr 7.9 Gentle breeze 13.6 Significant breeze
May 6.7 Light breeze 11.9 Significant breeze
Jun 5.9 Light breeze 10.1 Gentle breeze
Jul 7 Gentle breeze 11.8 Significant breeze
Aug 7.2 Gentle breeze 11.9 Significant breeze
Sep 7.3 Gentle breeze 12.1 Significant breeze
Oct 7.5 Gentle breeze 12.6 Significant breeze
Nov 8 Gentle breeze 13.2 Significant breeze
Dec 9.2 Gentle breeze 15.1 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 37.3%
Feb 40.9%
Mar 43.8%
Apr 48.3%
May 56.6%
Jun 72.2%
Jul 80.3%
Aug 74.6%
Sep 63.5%
Oct 49.9%
Nov 47.5%
Dec 40.8%


Is it Safe to Travel to Yeosu?

Our best data indicates this area is generally safe. As of Oct 07, 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 Oct 03, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Yeosu, South Korea is January, followed by May and April. 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 Yeosu in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 73.7 in December means 73.7% of the tourists vs. January.



Overall Yeosu Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 73.1°F (22.8°C) and 49.8°F (9.9°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 7 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 7 to 10 days of precipitation per month. June – August is fairly slow season for tourism in Yeosu, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 79.5°F (26.4°C) and 53.3°F (11.8°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 3 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is too cold this time of year in Yeosu to be enjoyable for warm weather travelers. The average high during this season is between 50.1°F (10.1°C) and 41.6°F (5.3°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.


Best Times to TravelSouth Korea › Yeosu, South Korea