Hwaseong Weather in September
Hwaseong in September averages 26°C (79°F) during the day and 19°C (66°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.
Rainfall in Hwaseong in September
Typically, you can expect about 8 days of rain this month, with 133 mm (5.2 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Hwaseong in September
In September, Hwaseong gets high temperatures, with highs of 26°C (79°F). Nights cool to around 19°C (66°F). The summer season takes place during September. This kind of day-to-night contrast is typical for this time of year. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Hwaseong in September
Enjoy a sunny month with about 202 hours of sunshine, the clear skies make Hwaseong even more beautiful.If you prefer dry days with pleasant temperatures, May and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Hwaseong's climate page.
Hwaseong Temperature in September
Min Temperature
19°C (66°F)
Max Temperature
26°C (79°F)
Chance of Rain
28%
Precipitation
133 mm (5.2 in)
Rainy days
8 days
Humidity
71% *
Sunshine
202 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hwaseong 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 Hwaseong in September
Browse day-by-day weather records for Hwaseong spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hwaseong historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Hwaseong.
- On September 17, 2024, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- Hwaseong experienced its chilliest September day on September 26, 1987, reaching only 16°C (61°F).
- Hwaseong registered its coldest September night on September 27, 1987, with temperatures dropping to 4°C (39°F).
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
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What to Wear in Hwaseong in September
Warm but pleasant conditions in Hwaseong in September. 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Hwaseong 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 Hwaseong's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hwaseong climate overview or explore weather in South Korea.
