Monthly climate guide
Jeonju weather in September
Expect warm weather in Jeonju in September: afternoons reach about 26°C (78°F), while nights drop to around 17°C (62°F). Around 127 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 4°C cooler than August and 6°C warmer than October.
What stands out in September
- It's humid — around 79% — so the heat feels heavier.
- Temperatures are falling — expect highs around 6°C lower by October.
- Seasonally, September counts as early autumn in Jeonju.
- Jeonju is usually about 2°C warmer than Gyeongju, 190 km away, in September.
Avg high
26°C
78°F
Avg low
17°C
62°F
Rainfall
127 mm
wet
Humidity
79%
relative
Sky
64%
cloud · often cloudy
Jeonju weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 3°C / 38°F | -5°C / 23°F | 24 mm | 77% | 54% |
| February | 6°C / 42°F | -3°C / 26°F | 37 mm | 73% | 57% |
| March | 12°C / 53°F | 0°C / 32°F | 50 mm | 73% | 51% |
| April | 18°C / 64°F | 6°C / 42°F | 92 mm | 73% | 58% |
| May | 24°C / 74°F | 11°C / 53°F | 72 mm | 73% | 58% |
| June | 28°C / 82°F | 17°C / 63°F | 123 mm | 75% | 74% |
| July | 29°C / 85°F | 22°C / 71°F | 288 mm | 84% | 77% |
| August | 30°C / 86°F | 23°C / 73°F | 245 mm | 81% | 69% |
| September | 26°C / 78°F | 17°C / 62°F | 127 mm | 79% | 64% |
| October | 20°C / 68°F | 10°C / 49°F | 77 mm | 77% | 51% |
| November | 13°C / 56°F | 4°C / 38°F | 61 mm | 77% | 55% |
| December | 5°C / 41°F | -3°C / 27°F | 35 mm | 77% | 55% |
What to pack for September
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
- Quick-dry fabrics — it feels stickier than the temperature suggests
Is September a good time to visit Jeonju?
Compare the months in the chart above to find your ideal window.
Best time to visit Jeonju →Other South Korea cities in September
Cite or embed this data
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Jeonju weather in September. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/south-korea/jeonju/september
<a href="https://weathercompare.eu/weather/south-korea/jeonju/september">Jeonju weather in September</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/south-korea/jeonju" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Jeonju weather in September"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/south-korea/jeonju/september">Jeonju weather in September</a> – WeatherCompare</p>
Jeonju in September: quick answers
Is September a good time to visit Jeonju?
September is one of the wetter months in Jeonju, with about 127 mm of rain. You can still go: pack a rain jacket and keep plans flexible.
How warm is Jeonju in September?
Average highs are about 26°C (78°F) and average lows about 17°C (62°F), based on 10 years of daily data.
Does it rain a lot in Jeonju in September?
Jeonju typically gets around 127 mm of rain in September — wet.
Figures are long-term averages for the area around Jeonju (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.