Mud festival in South Korea
In July, the peaceful seaside town of Boryeong turned into a chaos of mud for 9 days. We recommend putting this festival on your bucket list.
The average annual maximum temperature in Boseong, Jeollanam-Do, South Korea is 19°C (66°F), with daytime highs ranging from 7°C (45°F) in January to 31°C (88°F) in August. This page covers monthly averages, day-night differences, and how Boseong compares to cities worldwide.
With significant temperature fluctuations, Boseong enjoys distinct seasons year-round. Nighttime lows range from 23°C (73°F) in August to -3°C (27°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Boseong by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 174 hours of sunshine.
The chart below shows the average temperature throughout the year:
The map below shows the annual temperature across South Korea. You can also select individual months if you want to compare a specific time of year.
Boseong's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.
Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Boseong, January is the coolest month, with average highs of 7°C (45°F) and humidity around 67%, considered high. In August, the warmest month, temperatures average 31°C (88°F) with 78% humidity, conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Boseong's weather, including monthly rainfall, sunshine hours, and humidity, visit our Boseong climate page.
Pick a month to see the average temperature, rainfall and sunshine in Boseong - and find the best time to visit.
Temperature Rainfall Sunshine Humidity
See the full Boseong climate overview or explore weather in South Korea.
Where to go in October - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Mud festival in South Korea
In July, the peaceful seaside town of Boryeong turned into a chaos of mud for 9 days. We recommend putting this festival on your bucket list.
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