Jeollanam-do (Incheon)
September
Weather in Jeollanam-do for September 2025
Your guide to Jeollanam-do weather in September - trends and predictions
Heavy Rain Advisory - See hour by hour.
Until now, September 2025 in Jeollanam-do is slightly cooler than the historical average by -1.3 °C.
The forecast for the next days in Jeollanam-do predicts a temperature of 24.8 °C, which is cooler than the historical average.
In general, the average temperature in Jeollanam-do at the beginning of September is 30.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.1 °C by the end of September.
The climate of Jeollanam-do in September is notably wet, with an average of 11 rainy days, and a total of 150.3 mm of precipitation.
Official Weather Alert ⚠️
Temperatures
Rain 🌧️
19
Dry days
11
Rainy days
0
Snow days
29°/21°
Temperatures
12 km/h
Avg max wind
80 %
Avg humidity
Jeollanam-do Weather September
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Temperatures trend during September in Jeollanam-do
See the weather trend as well as the moving average line
September weather in Jeollanam-do day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 30° /22° | 1.4 mm | 7 | |
| 2 Sept. |  Overcast | 29° /20° | 3.3 mm | 6 | |
| 3 Sept. | Light rain shower | 31° /21° | 2.1 mm | 7 | |
| 4 Sept. |  Partly cloudy | 31° /21° | 1.4 mm | 8 | |
| 5 Sept. |  Sunny | 31° /21° | 0 mm | 8 | |
| 6 Sept. |  Light drizzle | 30° /22° | 1.3 mm | 7 | |
| 7 Sept. | Light rain shower | 29° /22° | 11 mm | 7 | |
| 8 Sept. |  Cloudy | 30° /20° | 0.7 mm | 7 | |
| 9 Sept. | Light rain shower | 29° /20° | 6.6 mm | 7 | |
| 10 Sept. | Patchy rain possible | 31° /20° | 12.6 mm | 7 | |
| 11 Sept. | Patchy light drizzle | 32° /22° | 0.4 mm | 7 | |
| 12 Sept. | Light rain shower | 29° /22° | 3.7 mm | 7 | |
| 13 Sept. | Patchy rain possible | 29° /22° | 6.5 mm | 7 | |
| 14 Sept. | Patchy rain possible | 31° /22° | 0.1 mm | 7 | |
| 15 Sept. | Light rain shower | 32° /23° | 8.9 mm | 7 | |
| 16 Sept. | Patchy rain possible | 30° /22° | 0.4 mm | 1.9 | |
| 17 Sept. |  Moderate rain | 29° /22° | 7.4 mm | 0.7 | |
| 18 Sept. | Patchy rain possible | 25° /20° | 2.5 mm | 0.6 | |
| 19 Sept. | Moderate rain | 19° /18° | 14.3 mm | 0.8 | |
| 20 Sept. |  Heavy rain | 22° /18° | 22 mm | 4 | |
| 21 Sept. | Patchy rain possible | 26° /17° | 0.2 mm | 5 | |
| 22 Sept. | Sunny | 26° /17° | 0 mm | 6 | |
| 23 Sept. | Sunny | 27° /15° | 0 mm | 6 | |
| 24 Sept. | Patchy rain possible | 21° /20° | 4.1 mm | 5 | |
| 25 Sept. | Patchy rain possible | 25° /19° | 0.2 mm | 5 | |
| 26 Sept. | Patchy rain possible | 26° /20° | 0.2 mm | 5 | |
| 27 Sept. | Patchy rain possible | 22° /19° | 0.8 mm | 5 | |
| 28 Sept. | Sunny | 24° /16° | 0 mm | 5 | |
| 29 Sept. | Sunny | 25° /15° | 0.1 mm | 5 | |
| 30 Sept. | Patchy rain possible | 26° /16° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Jeollanam-do in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Jeollanam-do forecast closer to your planned date for the most up-to-date weather information.
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Jeollanam-do in September - FAQ
What are the expected maximum and minimum temperatures in Jeollanam-do during September?
During September, expect a variety of temperatures with highs around 29° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jeollanam-do during September?
Significant rainfall exceeding 150.3 mm is expected in Jeollanam-do during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jeollanam-do during September?
The average wind speed in Jeollanam-do during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Jeollanam-do
Explore the daily rainfall trends and prepare for Jeollanam-dos September weather 💧
UV exposure in Jeollanam-do during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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