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.
Pyeongchang Weather in September
Thinking of visiting Pyeongchang in September? Expect high temperatures reaching 24°C (75°F) during the day, dropping to 14°C (57°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Pyeongchang in September
Analyzing past climate data, one can expect approximately 10 days of rain, averaging 147 mm (5.8 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Pyeongchang in September
Daytime highs in Pyeongchang in September reach 24°C (75°F), with nights around 14°C (57°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Pyeongchang in September
The month brings about 147 hours of sunlight, offering a comfortable mix of sun and overcast.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Pyeongchang.
Pyeongchang Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
24°C (75°F)
Chance of Rain
33%
Precipitation
147 mm (5.8 in)
Rainy days
10 days
Humidity
84%
Sunshine
147 hours
Percentage Sunshine
38%
Pyeongchang Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Pyeongchang - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Pyeongchang typically drop from around 26°C (79°F) at the start of September to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 11°C (52°F) to 18°C (64°F).
Average temperatures in September
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 September
Historical weather records for Pyeongchang in September
Browse day-by-day weather records for Pyeongchang spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Pyeongchang historical weather extremes in September
Based on 50 years of weather observations in Pyeongchang between 1976 and 2026, these are the recorded extremes.
- The warmest day in September was on September 1, 1994, with a maximum of 33°C (91°F).
- On September 25, 1997, Pyeongchang saw its coldest September day with temperatures maxing out at 15°C (59°F).
- Nighttime temperatures dropped to 2°C (36°F) on September 18, 1987, marking the coldest September night on record.
Best Places in South Korea in September
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 September →
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 Pyeongchang in September
For Pyeongchang in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Pyeongchang in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling9/10 -
Walking9/10 -
Camping6/10 -
Outdoor sports9/10
Pyeongchang 3-Day Forecast
More climate data for Pyeongchang
Temperature Rainfall Sunshine Humidity
See the full Pyeongchang climate overview or explore weather in South Korea.
Popular in September
Where to go in September - average daytime high across popular destinations.
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Mud festival in South Korea
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