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Asan Weather in August

August in Asan brings very high temperatures around 31°C (88°F) during the day, dropping to 23°C (73°F) at night, with quite a bit of rainfall expected, averaging around 238 mm (9.4 in) for the month.

Rainfall in Asan in August

Past climate data indicates that roughly 13 days will see rain, totalling around 238 mm (9.4 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Asan in August

In August, expect very high temperatures in Asan, with highs of 31°C (88°F) and lows of 23°C (73°F) at night. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. At 23°C (73°F) overnight, nights are warm enough to sit outside comfortably in light clothing. These are average temperatures, but occasional heat spikes are possible. Stay comfortable by wearing light clothing and drinking water.

Sunshine in Asan in August

The month enjoys around 209 hours of sunshine, creating mostly sunny days with good weather conditions.

August in Asan has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit South Korea, check out our Asan's climate page.

Asan Temperature in August

Min TemperatureMin Temperature 23°C (73°F)  
Max TemperatureMax Temperature 31°C (88°F)  
Chance of RainChance of Rain 44%  
PrecipitationPrecipitation 238 mm (9.4 in)  
Rainy daysRainy days 13 days  
HumidityHumidity 78% *  
SunshineSunshine 209 hours *  
Percentage SunshinePercentage Sunshine 48% *  
* Data from: Cheonan, South Korea (13 KM, 8 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Asan typically drop from around 31°C (88°F) at the start of August to approximately 28°C (82°F) by the end. Nights are warm, with lows typically ranging from 20°C (68°F) to 24°C (75°F).

Average temperatures in August

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

Historical weather for Asan in August

Browse day-by-day weather records for Asan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Asan historical weather extremes in August

The extremes listed below come from historical weather data collected in Asan from 1976 through 2025.

  • The warmest day in August was on August 15, 2018, with a maximum of 38°C (100°F).
  • On August 30, 2022, Asan saw its coldest August day with temperatures maxing out at 20°C (68°F).
  • Asan registered its coldest August night on August 29, 2014, with temperatures dropping to 13°C (55°F).

Best Places in South Korea in August

Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in August →

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Asan in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Asan in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
8/10
Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit South Korea, check out our Asan's climate page.

More climate data for Asan