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.
July in Asan brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 22°C (72°F). It's the rainiest month of the year, so come prepared with waterproof gear.
July in Asan has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Pick a month to see the average temperature, rainfall and sunshine in Asan - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Asan typically rise from around 28°C (82°F) at the start of July to approximately 31°C (88°F) by the end. Nights are warm, with lows typically ranging from 21°C (70°F) to 24°C (75°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 Asan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Asan.
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 July →
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 but pleasant conditions in Asan in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. 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 Asan climate overview or explore weather in South Korea.
Where to go in July - 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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