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.
Yangyang in South Korea sees significant seasonal temperature differences, with daytime highs between 3°C (37°F) in January and 27°C (81°F) in August, averaging 16°C (61°F) annually. Explore the full monthly breakdown below.
The weather in Yangyang experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 21°C (70°F) in August to -7°C (19°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Yangyang by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak.
The chart below shows the average temperature throughout the year:
Average high and low temperatures for each day of the month based on long-term records. 50-year average (1976-2025)
Browse day-by-day temperature records for Yangyang spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
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.
Yangyang's average annual maximum temperature is 16°C (61°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings, very cold winters and hot summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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.
Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Yangyang this rarely lasts long on the ground.
For more on Yangyang's weather, including monthly rainfall, sunshine hours, and humidity, visit our Yangyang climate page.
Pick a month to see the average temperature, rainfall and sunshine in Yangyang - and find the best time to visit.
Temperature Rainfall
See the full Yangyang climate overview or explore weather in South Korea.
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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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