Jeju City
September
Weather in Jeju City for September 2027
Your guide to Jeju City weather in September - trends and predictions
In general, the average temperature in Jeju City at the beginning of September is 27 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 24.5 °C by the end of September.
The climate of Jeju City in September is notably wet, with an average of 15 rainy days, and a total of 235.4 mm of precipitation.
Is September a good time to visit Jeju City? check out the best time to travel to Jeju City page.
Temperatures
Rain 🌧️
More
15
Dry days
15
Rainy days
0
Snow days
26°/22°
Temperatures
22 km/h
Avg max wind
79 %
Avg humidity
Jeju City Weather September
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Temperatures trend during September in Jeju City
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September weather in Jeju City day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Moderate rain | 27° /24° | 12.2 mm | 5 | |
| 2 Sept. | Moderate rain | 27° /23° | 22.8 mm | 5 | |
| 3 Sept. |  Light rain | 28° /23° | 9 mm | 6 | |
| 4 Sept. | Light rain | 27° /23° | 4.1 mm | 6 | |
| 5 Sept. | Moderate rain | 27° /23° | 19.7 mm | 6 | |
| 6 Sept. | Light rain | 27° /23° | 7.5 mm | 6 | |
| 7 Sept. |  Patchy rain possible | 27° /22° | 1 mm | 7 | |
| 8 Sept. | Patchy rain possible | 27° /22° | 1.3 mm | 7 | |
| 9 Sept. | Patchy rain possible | 26° /22° | 2 mm | 6 | |
| 10 Sept. | Moderate rain | 26° /22° | 11.8 mm | 6 | |
| 11 Sept. | Light rain | 26° /22° | 6.1 mm | 7 | |
| 12 Sept. | Light rain | 27° /23° | 3.2 mm | 7 | |
| 13 Sept. | Moderate rain | 26° /24° | 20.7 mm | 6 | |
| 14 Sept. |  Heavy rain | 26° /23° | 32.4 mm | 6 | |
| 15 Sept. | Light rain | 27° /24° | 4.9 mm | 6 | |
| 16 Sept. | Light rain | 28° /24° | 9.6 mm | 6 | |
| 17 Sept. |  Heavy rain at times | 27° /23° | 23.1 mm | 5 | |
| 18 Sept. | Light rain | 26° /23° | 3 mm | 6 | |
| 19 Sept. | Patchy rain possible | 26° /23° | 1.6 mm | 6 | |
| 20 Sept. | Moderate rain | 26° /22° | 11.4 mm | 6 | |
| 21 Sept. | Light rain | 24° /21° | 6 mm | 6 | |
| 22 Sept. | Light rain | 24° /21° | 4.4 mm | 6 | |
| 23 Sept. |  Overcast | 24° /20° | 0.5 mm | 6 | |
| 24 Sept. | Patchy rain possible | 25° /21° | 1.1 mm | 5 | |
| 25 Sept. | Patchy rain possible | 25° /21° | 1.1 mm | 5 | |
| 26 Sept. | Light rain | 25° /21° | 7.5 mm | 5 | |
| 27 Sept. | Patchy rain possible | 24° /21° | 1.1 mm | 5 | |
| 28 Sept. | Light rain | 24° /22° | 2.9 mm | 5 | |
| 29 Sept. | Patchy rain possible | 25° /20° | 0.8 mm | 6 | |
| 30 Sept. | Light rain | 24° /20° | 2.8 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Jeju City 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 Jeju City forecast closer to your planned date for the most up-to-date weather information.
Change Month
Jeju City in September - FAQ
What are the expected maximum and minimum temperatures in Jeju City during September?
During September, expect a variety of temperatures with highs around 26° and lows near 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jeju City during September?
Significant rainfall exceeding 235.4 mm is expected in Jeju City during September, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jeju City during September?
The average wind speed in Jeju City during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Jeju City
Explore the daily rainfall trends and prepare for Jeju Citys September weather 💧
Typically, Jeju City has 15 rainy days in September with a total of 235.4 mm of rainfall.
UV exposure in Jeju City during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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