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.
Taean in South Korea sees significant seasonal temperature differences, with daytime highs between 4°C (39°F) in January and 29°C (84°F) in August, averaging 17°C (63°F) annually. Explore the full monthly breakdown below.
Visitors to Taean can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 23°C (73°F) in August to -1°C (30°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Taean by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 186 hours of sunshine.
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 Taean 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.
Taean's average annual maximum temperature is 17°C (63°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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
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 Taean, January is the coolest month, with average highs of 4°C (39°F) and humidity around 75%, considered high. In August, the warmest month, temperatures average 29°C (84°F) with 84% humidity, conditions that feel very 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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Taean's weather, including monthly rainfall, sunshine hours, and humidity, visit our Taean climate page.
Pick a month to see the average temperature, rainfall and sunshine in Taean - and find the best time to visit.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Taean 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
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