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Weather in Gwangju for September 2025

Your guide to Gwangju weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Heavy Rain Advisory - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Gwangju is slightly cooler than the historical average by -1.2 °C.

  • The forecast for the next days in Gwangju predicts a temperature of 24.7 °C, which is cooler than the historical average.

  • In general, the average temperature in Gwangju at the beginning of September is 30.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25 °C by the end of September.

    • Rain 🌧️

  • Gwangju in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 118.7 mm.

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/19°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
81 %
Avg humidity

Gwangju Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
30°
2
Moderate or heavy rain shower
28°
3
Light rain shower
31°
4
Patchy rain possible
32°
5
Patchy rain possible
31°
6
Light rain shower
31°
7
Light rain shower
29°
8
Sunny
30°
9
Light rain shower
29°
10
Patchy rain possible
30°
11
Patchy rain possible
32°
12
Light rain shower
29°
13
Overcast
27°
14
Fog
30°
15
Weather Alert Moderate rain
25°
16
Weather Alert Patchy rain possible
30°
17
Moderate rain
28°
18
Patchy rain possible
24°
19
Patchy rain possible
20°
20
Moderate rain
19°
21
Patchy rain possible
24°
22
Sunny
27°
23
Partly cloudy
27°
24
Partly cloudy
28°
25
Patchy rain possible
24°
26
Moderate rain
20°
27
Patchy rain possible
25°
28
Sunny
25°
29
Partly cloudy
27°
30
Patchy light drizzle
26°

Temperatures trend during September in Gwangju

See the weather trend as well as the moving average line

September weather in Gwangju day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 30° /19° 1.8 mm 6
2 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /19° 7.1 mm 6
3 Sept. Light rain shower
Light rain shower
 31° /20° 2.4 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
 32° /19° 2.6 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
 31° /20° 0.7 mm 7
6 Sept. Light rain shower
Light rain shower
 31° /20° 3.8 mm 7
7 Sept. Light rain shower
Light rain shower
 29° /19° 6.5 mm 7
8 Sept. Sunny
Sunny
 30° /17° 0.4 mm 7
9 Sept. Light rain shower
Light rain shower
 29° /18° 4.6 mm 6
10 Sept. Patchy rain possible
Patchy rain possible
 30° /19° 7.3 mm 6
11 Sept. Patchy rain possible
Patchy rain possible
 32° /19° 0.6 mm 7
12 Sept. Light rain shower
Light rain shower
 29° /20° 2.8 mm 6
13 Sept. Overcast
Overcast
 27° /20° 4.1 mm 6
14 Sept. Fog
Fog
 30° /20° 1.9 mm 7
15 Sept. Moderate rain
Moderate rain
 25° /21° 13.8 mm 0.5
16 Sept. Patchy rain possible
Patchy rain possible
 30° /21° 2.5 mm 1.8
17 Sept. Moderate rain
Moderate rain
 28° /22° 8.2 mm 1.8
18 Sept. Patchy rain possible
Patchy rain possible
 24° /19° 4 mm 1.4
19 Sept. Patchy rain possible
Patchy rain possible
 20° /19° 2 mm 4
20 Sept. Moderate rain
Moderate rain
 19° /17° 6.5 mm 4
21 Sept. Patchy rain possible
Patchy rain possible
 24° /16° 0.9 mm 4
22 Sept. Sunny
Sunny
 27° /14° 0 mm 5
23 Sept. Partly cloudy
Partly cloudy
 27° /16° 0 mm 6
24 Sept. Partly cloudy
Partly cloudy
 28° /16° 0 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 24° /19° 0.2 mm 5
26 Sept. Moderate rain
Moderate rain
 20° /16° 8.2 mm 4
27 Sept. Patchy rain possible
Patchy rain possible
 25° /13° 0 mm 4
28 Sept. Sunny
Sunny
 25° /14° 0 mm 5
29 Sept. Partly cloudy
Partly cloudy
 27° /14° 0 mm 7
30 Sept. Patchy light drizzle
Patchy light drizzle
 26° /14° 0.8 mm 6
Next
Important Notice
Our weather forecast for Gwangju 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 Gwangju forecast closer to your planned date for the most up-to-date weather information.
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Gwangju in September - FAQ

What are the expected maximum and minimum temperatures in Gwangju during September?
During September, expect a variety of temperatures with highs around 28° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Gwangju during September?
Significant rainfall exceeding 118.7 mm is expected in Gwangju during September, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Gwangju during September?
The average wind speed in Gwangju during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Gwangju

Explore the daily rainfall trends and prepare for Gwangjus September weather 💧

UV exposure in Gwangju during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Gwangju?

Get accurate weather forecasts for Gwangju, located at latitude 35.155 and longitude 126.916. Stay updated with localized weather information tailored for Gwangju.

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