Busan
September
Weather in Busan for September 2025
Your guide to Busan weather in September - trends and predictions
In general, the average temperature in Busan at the beginning of September is 26.9 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 24.6 °C by the end of September.
Busan in September brings notable rainfall, with an average of 19 rainy days and a total precipitation of 270.3 mm.
Temperatures
Rain 🌧️
11
Dry days
19
Rainy days
0
Snow days
26°/21°
Temperatures
22 km/h
Avg max wind
77 %
Avg humidity
Busan in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 26° | 3 26° | 4  27° | 5  28° | 6 27° | 7 28° |
| 8  28° | 9  27° | 10 26° | 11 28° | 12 27° | 13  27° | 14 26° |
| 15 25° | 16 26° | 17 26° | 18 28° | 19 27° | 20 25° | 21 25° |
| 22 25° | 23 24° | 24 24° | 25 23° | 26 25° | 27 25° | 28 25° |
| 29 25° | 30 25° |
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Temperatures trend during September in Busan
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Moderate or heavy rain shower | 26° /22° | 104.6 mm | 6 | |
| 2 Sept. | Moderate or heavy rain shower | 26° /22° | 15.7 mm | 6 | |
| 3 Sept. | Moderate or heavy rain shower | 26° /21° | 4.6 mm | 6 | |
| 4 Sept. | Partly cloudy | 27° /22° | 0.7 mm | 7 | |
| 5 Sept. | Cloudy | 28° /22° | 3 mm | 7 | |
| 6 Sept. | Moderate rain at times | 27° /22° | 21.4 mm | 6 | |
| 7 Sept. | Moderate or heavy rain shower | 28° /21° | 1.7 mm | 7 | |
| 8 Sept. | Patchy rain possible | 28° /21° | 0.8 mm | 6 | |
| 9 Sept. | Sunny | 27° /20° | 0.1 mm | 7 | |
| 10 Sept. | Moderate rain at times | 26° /21° | 0.6 mm | 6 | |
| 11 Sept. | Sunny | 28° /21° | 2.4 mm | 7 | |
| 12 Sept. | Cloudy | 27° /22° | 0.3 mm | 6 | |
| 13 Sept. | Overcast | 27° /23° | 0.2 mm | 6 | |
| 14 Sept. | Overcast | 26° /22° | 5.7 mm | 6 | |
| 15 Sept. | Overcast | 25° /22° | 5.9 mm | 6 | |
| 16 Sept. | Overcast | 26° /22° | 2.2 mm | 6 | |
| 17 Sept. | Moderate or heavy rain shower | 26° /22° | 15.1 mm | 6 | |
| 18 Sept. | Patchy rain possible | 28° /22° | 9.2 mm | 7 | |
| 19 Sept. | Partly cloudy | 27° /22° | 15.8 mm | 7 | |
| 20 Sept. | Patchy rain possible | 25° /20° | 7.1 mm | 5 | |
| 21 Sept. | Moderate or heavy rain shower | 25° /19° | 43.8 mm | 6 | |
| 22 Sept. | Moderate rain at times | 25° /19° | 1.3 mm | 6 | |
| 23 Sept. | Sunny | 24° /18° | 0.1 mm | 6 | |
| 24 Sept. | Cloudy | 24° /18° | 0.5 mm | 5 | |
| 25 Sept. | Patchy rain possible | 23° /19° | 0.3 mm | 6 | |
| 26 Sept. | Patchy rain possible | 25° /20° | 0.1 mm | 6 | |
| 27 Sept. | Patchy rain possible | 25° /20° | 0.2 mm | 6 | |
| 28 Sept. | Patchy rain possible | 25° /19° | 1.3 mm | 6 | |
| 29 Sept. | Sunny | 25° /19° | 1.6 mm | 6 | |
| 30 Sept. | Sunny | 25° /18° | 3.9 mm | 6 | |
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Important Notice
Our weather forecast for Busan 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 Busan forecast closer to your planned date for the most up-to-date weather information.
Busan in September - FAQ
What are the expected maximum and minimum temperatures in Busan during September?
During September, expect a variety of temperatures with highs around 26° and lows near 21°, suitable for diverse activities and preferences.
How much rainfall should be expected in Busan during September?
Significant rainfall exceeding 270.3 mm is expected in Busan during September, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Busan during September?
The average wind speed in Busan during September is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Busan
Explore the daily rainfall trends and prepare for Busans September weather 💧
UV exposure in Busan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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