Ulsan
September
Weather in Ulsan for September 2027
Your guide to Ulsan weather in September - trends and predictions
In general, the average temperature in Ulsan at the beginning of September is 28.8 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.6 °C by the end of September.
The climate of Ulsan in September is notably wet, with an average of 12 rainy days, and a total of 113.7 mm of precipitation.
Is September a good time to visit Ulsan? check out the best time to travel to Ulsan page.
Temperatures
Rain 🌧️
More
18
Dry days
12
Rainy days
0
Snow days
26°/19°
Temperatures
15 km/h
Avg max wind
80 %
Avg humidity
Ulsan Weather September
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Temperatures trend during September in Ulsan
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September weather in Ulsan day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Partly cloudy | 31° /22° | 0.3 mm | 6 | |
| 2 Sept. |  Light rain | 31° /22° | 3.7 mm | 5 | |
| 3 Sept. |  Patchy rain possible | 27° /21° | 1.7 mm | 4 | |
| 4 Sept. |  Sunny | 27° /21° | 0.2 mm | 7 | |
| 5 Sept. | Partly cloudy | 29° /20° | 0.2 mm | 7 | |
| 6 Sept. | Patchy rain possible | 29° /21° | 1.7 mm | 6 | |
| 7 Sept. | Light rain | 29° /20° | 4.7 mm | 7 | |
| 8 Sept. | Patchy rain possible | 28° /19° | 2.4 mm | 7 | |
| 9 Sept. | Light rain | 24° /20° | 5.7 mm | 5 | |
| 10 Sept. | Partly cloudy | 26° /19° | 0.6 mm | 7 | |
| 11 Sept. |  Moderate or heavy rain shower | 27° /20° | 6.6 mm | 6 | |
| 12 Sept. | Patchy rain possible | 27° /20° | 1.5 mm | 6 | |
| 13 Sept. | Patchy rain possible | 29° /21° | 1.7 mm | 7 | |
| 14 Sept. | Sunny | 29° /21° | 0.1 mm | 7 | |
| 15 Sept. | Moderate or heavy rain shower | 26° /20° | 6.5 mm | 5 | |
| 16 Sept. | Patchy rain possible | 27° /21° | 1.6 mm | 6 | |
| 17 Sept. | Patchy rain possible | 29° /21° | 1.1 mm | 5 | |
| 18 Sept. | Light rain | 24° /21° | 3.7 mm | 4 | |
| 19 Sept. |  Overcast | 26° /20° | 0 mm | 5 | |
| 20 Sept. | Moderate or heavy rain shower | 26° /19° | 9.7 mm | 6 | |
| 21 Sept. |  Heavy rain | 24° /17° | 47.8 mm | 6 | |
| 22 Sept. | Patchy rain possible | 23° /18° | 0.3 mm | 6 | |
| 23 Sept. | Overcast | 23° /17° | 0 mm | 5 | |
| 24 Sept. | Overcast | 26° /17° | 0.4 mm | 4 | |
| 25 Sept. | Patchy rain possible | 25° /18° | 1.3 mm | 4 | |
| 26 Sept. | Light rain | 24° /17° | 5.8 mm | 5 | |
| 27 Sept. | Patchy rain possible | 25° /18° | 1.3 mm | 5 | |
| 28 Sept. | Patchy rain possible | 25° /19° | 1 mm | 4 | |
| 29 Sept. | Patchy rain possible | 23° /17° | 1.2 mm | 4 | |
| 30 Sept. | Sunny | 25° /16° | 0.9 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Ulsan 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 Ulsan forecast closer to your planned date for the most up-to-date weather information.
Change Month
Ulsan in September - FAQ
What are the expected maximum and minimum temperatures in Ulsan during September?
During September, expect a variety of temperatures with highs around 26° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ulsan during September?
Significant rainfall exceeding 113.7 mm is expected in Ulsan during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ulsan during September?
The average wind speed in Ulsan during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Ulsan
Explore the daily rainfall trends and prepare for Ulsans September weather 💧
Typically, Ulsan has 12 rainy days in September with a total of 113.7 mm of rainfall.
UV exposure in Ulsan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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