easeweather.com
Jejudo
BusanCheonanCheongju-siChuncheonDaeguDaejeonEverlandGangneungGangwonGapyeongGwangjuGwangmyeongGyeongjuHallasan National ParkHongch’ŏnIncheonIncheonJeju City
Jejudo
JeonjuMyeong-dongNamiseomPyeongchangPyeongtaekSeoulSokchoSuwonUlsan More Locations
South Korea weather

Weather in Jejudo for September 2026

Your guide to Jejudo weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Jejudo is cooler than usual, with temperatures averaging 25 °C, this is 2.5 °C below the typical seasonal average.

  • The forecast for the next days in Jejudo predicts a temperature of 23.1 °C, which is cooler than the historical average.

  • In general, the average temperature in Jejudo at the beginning of September is 27.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.7 °C by the end of September.

    • Rain 🌧️

  • Jejudo experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 149.5 mm.

Average dry days
6
Dry days
Average rainy days
24
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/23°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Jejudo Weather September

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

Temperatures trend during September in Jejudo

See the weather trend as well as the moving average line

September weather in Jejudo day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Torrential rain shower
Torrential rain shower
 28° /23° 21.8 mm 5
2 Sept. Patchy rain possible
Patchy rain possible
 29° /24° 6 mm 5
3 Sept. Patchy rain possible
Patchy rain possible
 29° /23° 1.6 mm 5
4 Sept. Patchy rain possible
Patchy rain possible
 27° /23° 1.5 mm 5
5 Sept. Partly cloudy
Partly cloudy
 27° /23° 0.6 mm 5
6 Sept. Patchy rain possible
Patchy rain possible
 28° /23° 0.9 mm 5
7 Sept. Patchy rain possible
Patchy rain possible
 27° /22° 1.4 mm 7
8 Sept. Sunny
Sunny
 27° /22° 2.5 mm 8
9 Sept. Patchy rain possible
Patchy rain possible
 26° /22° 3.9 mm 6
10 Sept. Light rain shower
Light rain shower
 26° /21° 5.8 mm 7
11 Sept. Light rain shower
Light rain shower
 26° /22° 9 mm 7
12 Sept. Cloudy
Cloudy
 29° /23° 1.4 mm 7
13 Sept. Overcast
Overcast
 28° /23° 2.7 mm 7
14 Sept. Moderate rain
Moderate rain
 27° /24° 7.7 mm 6
15 Sept. Overcast
Overcast
 23° /20° 0 mm 6.2
16 Sept. Patchy rain possible
Patchy rain possible
 23° /19° 0.6 mm 7.5
17 Sept. Patchy rain possible
Patchy rain possible
 23° /21° 0.4 mm 5.9
18 Sept. Patchy rain possible
Patchy rain possible
 23° /21° 0.8 mm 5
19 Sept. Patchy rain possible
Patchy rain possible
 23° /21° 0.5 mm 6
20 Sept. Sunny
Sunny
 23° /20° 0.1 mm 6
21 Sept. Patchy rain possible
Patchy rain possible
 22° /19° 0.1 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
 23° /21° 0.7 mm 5
23 Sept. Light rain shower
Light rain shower
 23° /21° 21.8 mm 5
24 Sept. Sunny
Sunny
 24° /20° 0.1 mm 6
25 Sept. Overcast
Overcast
 23° /20° 0 mm 6
26 Sept. Partly cloudy
Partly cloudy
 26° /20° 0 mm 7
27 Sept. Light rain shower
Light rain shower
 23° /21° 11 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 21° /17° 4.7 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 25° /20° 0.4 mm 6
30 Sept. Patchy light drizzle
Patchy light drizzle
 24° /20° 0.1 mm 6
Next
Important Notice
Our weather forecast for Jejudo 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 Jejudo forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Jejudo in September - FAQ

What are the expected maximum and minimum temperatures in Jejudo during September?
During September, expect a variety of temperatures with highs around 27° and lows near 23°, suitable for diverse activities and preferences.

How much rainfall should be expected in Jejudo during September?
Significant rainfall exceeding 149.5 mm is expected in Jejudo during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Jejudo during September?
The average wind speed in Jejudo during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Jejudo

Explore the daily rainfall trends and prepare for Jejudos September weather 💧
Typically, Jejudo has 24 rainy days in September with a total of 149.5 mm of rainfall.

UV exposure in Jejudo during September

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

Quick links

More Jejudo weather pages
You are here
Location coordinates Where is Jejudo?

Get accurate weather forecasts for Jejudo, located at latitude 33.402 and longitude 126.546. Stay updated with localized weather information tailored for Jejudo.

Related locations
Select a location for accurate weather forecast
Tokyo
More Locations
Found a mistake?
We appreciate your attention to details. Tell us here.