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 27.7 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 25 °C by the end of September.
The climate of Busan in September is notably wet, with an average of 12 rainy days.
Is September a good time to visit Busan? check out the best time to travel to Busan page.
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18
Dry days
12
Rainy days
0
Snow days
26°/22°
Temperatures
21 km/h
Avg max wind
78 %
Avg humidity
Busan in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2  28° | 3 27° | 4  28° | 5 28° | 6  28° | 7 28° |
| 8  28° | 9  28° | 10 28° | 11 29° | 12 28° | 13 28° | 14 27° |
| 15 26° | 16  27° | 17 27° | 18 29° | 19 29° | 20 26° | 21 26° |
| 22 24° | 23 24° | 24 24° | 25 24° | 26 25° | 27 26° | 28 26° |
| 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. | Light rain shower | 27° /23° | 197.1 mm | 7 | |
| 2 Sept. | Moderate or heavy rain shower | 28° /23° | 10.1 mm | 6 | |
| 3 Sept. | Patchy rain possible | 27° /23° | 1 mm | 6 | |
| 4 Sept. | Partly cloudy | 28° /23° | 0 mm | 7 | |
| 5 Sept. | Partly cloudy | 28° /22° | 0 mm | 7 | |
| 6 Sept. | Cloudy | 28° /23° | 0 mm | 6 | |
| 7 Sept. | Partly cloudy | 28° /22° | 0.1 mm | 7 | |
| 8 Sept. | Overcast | 28° /23° | 1 mm | 6 | |
| 9 Sept. | Sunny | 28° /22° | 0.2 mm | 7 | |
| 10 Sept. | Cloudy | 28° /22° | 0 mm | 7 | |
| 11 Sept. | Patchy rain possible | 29° /23° | 4.7 mm | 7 | |
| 12 Sept. | Cloudy | 28° /24° | 0.5 mm | 6 | |
| 13 Sept. | Overcast | 28° /23° | 0 mm | 6 | |
| 14 Sept. | Overcast | 27° /23° | 0 mm | 7 | |
| 15 Sept. | Overcast | 26° /23° | 2.8 mm | 6 | |
| 16 Sept. | Patchy light drizzle | 27° /23° | 4.1 mm | 6 | |
| 17 Sept. | Moderate or heavy rain shower | 27° /24° | 11 mm | 6 | |
| 18 Sept. | Partly cloudy | 29° /24° | 2.9 mm | 7 | |
| 19 Sept. | Partly cloudy | 29° /24° | 0 mm | 8 | |
| 20 Sept. | Light drizzle | 26° /23° | 14.1 mm | 6 | |
| 21 Sept. | Light rain shower | 26° /20° | 75 mm | 6 | |
| 22 Sept. | Partly cloudy | 24° /20° | 2.1 mm | 6 | |
| 23 Sept. | Patchy rain possible | 24° /19° | 0.2 mm | 5 | |
| 24 Sept. | Patchy rain possible | 24° /19° | 0.9 mm | 5 | |
| 25 Sept. | Patchy rain possible | 24° /20° | 0.3 mm | 6 | |
| 26 Sept. | Patchy rain possible | 25° /21° | 0 mm | 7 | |
| 27 Sept. | Patchy rain possible | 26° /22° | 0.3 mm | 6 | |
| 28 Sept. | Partly cloudy | 26° /21° | 0.6 mm | 7 | |
| 29 Sept. | Sunny | 25° /19° | 0.1 mm | 6 | |
| 30 Sept. | Patchy light drizzle | 25° /18° | 0.4 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 22°, suitable for diverse activities and preferences.
How much rainfall should be expected in Busan during September?
Significant rainfall exceeding 461.2 mm is expected in Busan during September, occurring over more than 12 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 21 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Busan in September?
As you prepare for your trip to Busan in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Busan, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Lightweight Clothing: T-shirts, blouses, shorts, skirts
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
- Personal Items
- Sunscreen: High SPF for sunny destinations
- Lip Balm with SPF: To protect against chapped lips
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