Goyang Weather in September
In Goyang, September brings high daytime temperatures around 27°C (81°F), with nights cooling to 17°C (63°F). Expect quite a bit of rainfall this month.
Rainfall in Goyang in September
Typically, about 8 days will experience rainfall, with an average of 126 mm (5 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Goyang in September
September in Goyang sees highs of 27°C (81°F) and lows of 17°C (63°F) overnight. This kind of day-to-night contrast is typical for this time of year. At 17°C (63°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Goyang in September
The area enjoys a balanced 182 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Goyang in September
Wind speeds average 2 m/s (4 knots) during September. At this speed, expect light breezes that you can feel on your face and cause leaves to rustle gently. Since this is an average, some days are calmer with barely any wind while others have more noticeable gentle breezes.If your ideal day consists of dry skies and pleasant temperatures, May and October typically offer the best circumstances for Goyang.
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 Goyang's climate page.
Goyang Temperature in September
Min Temperature
17°C (63°F)
Max Temperature
27°C (81°F)
Chance of Rain
28%
Precipitation
126 mm (5 in)
Rainy days
8 days
Humidity
67% *
Windspeed
2 m/s (4 knots) *
Sunshine
182 hours *
Percentage Sunshine
48% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Goyang typically drop from around 28°C (82°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 20°C (68°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 for Goyang in September
Browse day-by-day weather records for Goyang spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Goyang historical weather extremes in September
The extremes listed below come from historical weather data collected in Goyang from 1976 through 2025.
- Goyang recorded its highest September temperature of 35°C (95°F) on September 11, 2024.
- The coldest September day was on September 26, 1987, with a maximum of 16°C (61°F).
- The lowest overnight temperature recorded in September was 4°C (39°F) (September 27, 1987).
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
What to Wear in Goyang in September
Warm temperatures in September 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. Prepare for significant rainfall with proper waterproof clothing and shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Goyang in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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 Goyang's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Goyang climate overview or explore weather in South Korea.
