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.
August in Gapyeong brings high temperatures, with daytime highs of 29°C (84°F) and nights around 21°C (70°F). Quite a bit of rainfall is expected, around 288 mm (11 in), so pack an umbrella.
If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit Gapyeong. Our weather planner can help you explore destinations with more pleasant weather conditions.
Pick a month to see the average temperature, rainfall and sunshine in Gapyeong - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Gapyeong 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 19°C (66°F) to 23°C (73°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Gapyeong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 50 years of weather records for Gapyeong, the following extremes were recorded between 1976 and 2026.
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 →
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).
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! It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Gapyeong climate overview or explore weather in South Korea.
Where to go in August - 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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