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Weather in Gapyeong for September 2025

Your guide to Gapyeong weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Gapyeong has been nearly identical to the historical average, with a temperature of 27.3 °C (showing only a slight deviation of -0.5 °C).

  • The forecast for the next days in Gapyeong predicts a temperature of 23.6 °C, which is cooler than the historical average.

  • In general, the average temperature in Gapyeong at the beginning of September is 27.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.4 °C by the end of September.

    • Rain 🌧️

  • The climate of Gapyeong in September is notably wet, with an average of 13 rainy days, and a total of 167.9 mm of precipitation.

Average dry days
17
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/14°
Temperatures
Average wind speed
8 km/h
Avg max wind
Average humidity
84 %
Avg humidity

Gapyeong Weather September

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

Temperatures trend during September in Gapyeong

See the weather trend as well as the moving average line

September weather in Gapyeong day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Fog
Fog
 27° /16° 1.9 mm 6
2 Sept. Moderate rain
Moderate rain
 27° /16° 5.1 mm 6
3 Sept. Patchy rain possible
Patchy rain possible
 30° /15° 0.2 mm 7
4 Sept. Sunny
Sunny
 28° /13° 4.2 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
 29° /16° 0.2 mm 7
6 Sept. Light drizzle
Light drizzle
 24° /17° 2.6 mm 6
7 Sept. Patchy rain possible
Patchy rain possible
 28° /15° 1.7 mm 7
8 Sept. Mist
Mist
 30° /14° 0 mm 7
9 Sept. Fog
Fog
 29° /14° 0.1 mm 7
10 Sept. Patchy rain possible
Patchy rain possible
 31° /15° 0 mm 7
11 Sept. Patchy rain possible
Patchy rain possible
 32° /14° 0 mm 8
12 Sept. Light rain shower
Light rain shower
 25° /15° 20.6 mm 6
13 Sept. Light rain shower
Light rain shower
 22° /16° 37.8 mm 5
14 Sept. Light rain shower
Light rain shower
 27° /18° 7.8 mm 6
15 Sept. Partly cloudy
Partly cloudy
 29° /14° 0 mm 1.4
16 Sept. Heavy rain
Heavy rain
 23° /15° 24.6 mm 0.4
17 Sept. Moderate rain
Moderate rain
 25° /16° 14.7 mm 0.9
18 Sept. Moderate rain
Moderate rain
 21° /13° 11.7 mm 0.4
19 Sept. Moderate rain
Moderate rain
 18° /12° 5.3 mm 0.3
20 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 1.1 mm 3
21 Sept. Partly cloudy
Partly cloudy
 26° /10° 0 mm 5
22 Sept. Partly cloudy
Partly cloudy
 26° /11° 0 mm 5
23 Sept. Partly cloudy
Partly cloudy
 24° /10° 0 mm 5
24 Sept. Sunny
Sunny
 24° /11° 0 mm 5
25 Sept. Sunny
Sunny
 26° /10° 0 mm 5
26 Sept. Sunny
Sunny
 27° /14° 0 mm 5
27 Sept. Sunny
Sunny
 25° /14° 0 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 19° /14° 3 mm 4
29 Sept. Mist
Mist
 25° /9° 0 mm 6
30 Sept. Patchy rain possible
Patchy rain possible
 25° /12° 0 mm 6
Next
Important Notice
Our weather forecast for Gapyeong 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 Gapyeong forecast closer to your planned date for the most up-to-date weather information.
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Gapyeong in September - FAQ

What are the expected maximum and minimum temperatures in Gapyeong during September?
Enjoy moderate daytime temperatures of up to 26° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Gapyeong during September?
Significant rainfall exceeding 167.9 mm is expected in Gapyeong during September, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Gapyeong during September?
The average wind speed in Gapyeong during September is 8 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Gapyeong

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

UV exposure in Gapyeong during September

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

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Location coordinates Where is Gapyeong?

Get accurate weather forecasts for Gapyeong, located at latitude 37.831 and longitude 127.511. Stay updated with localized weather information tailored for Gapyeong.

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