Hallasan National Park
September
Weather in Hallasan National Park for September 2026
Your guide to Hallasan National Park weather in September - trends and predictions
Until now, September 2026 in Hallasan National Park is cooler than usual, with temperatures averaging 25 °C, this is 2.9 °C below the typical seasonal average.
The forecast for the next days in Hallasan National Park predicts a temperature of 23.5 °C, which is cooler than the historical average.
In general, the average temperature in Hallasan National Park at the beginning of September is 28.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.1 °C by the end of September.
Hallasan National Park experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 129.6 mm.
Temperatures
Rain 🌧️
7
Dry days
23
Rainy days
0
Snow days
27°/24°
Temperatures
21 km/h
Avg max wind
79 %
Avg humidity
Hallasan National Park Weather September
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Temperatures trend during September in Hallasan National Park
See the weather trend as well as the moving average line
September weather in Hallasan National Park day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 29° /24° | 1.9 mm | 5 | |
| 2 Sept. | Patchy rain possible | 29° /24° | 1.7 mm | 5 | |
| 3 Sept. | Patchy rain possible | 29° /23° | 1 mm | 5 | |
| 4 Sept. | Patchy rain possible | 27° /23° | 1.5 mm | 5 | |
| 5 Sept. | Patchy rain possible | 28° /23° | 0.7 mm | 5 | |
| 6 Sept. | Patchy rain possible | 28° /24° | 1.1 mm | 5 | |
| 7 Sept. | Patchy rain possible | 28° /23° | 1.1 mm | 7 | |
| 8 Sept. | Patchy rain possible | 28° /23° | 2.5 mm | 8 | |
| 9 Sept. | Patchy rain possible | 27° /22° | 3.9 mm | 6 | |
| 10 Sept. | Patchy rain possible | 27° /22° | 5.3 mm | 7 | |
| 11 Sept. |  Moderate or heavy rain shower | 26° /22° | 8.8 mm | 7 | |
| 12 Sept. | Patchy rain possible | 29° /23° | 0.9 mm | 8 | |
| 13 Sept. | Moderate rain at times | 28° /24° | 3.9 mm | 7 | |
| 14 Sept. | Patchy rain possible | 28° /24° | 9.7 mm | 6 | |
| 15 Sept. |  Overcast | 23° /20° | 0.1 mm | 6.2 | |
| 16 Sept. | Overcast | 23° /20° | 1 mm | 7.5 | |
| 17 Sept. | Patchy rain possible | 23° /21° | 0.4 mm | 5.9 | |
| 18 Sept. | Patchy rain possible | 23° /21° | 1.9 mm | 5 | |
| 19 Sept. | Patchy rain possible | 22° /21° | 0.8 mm | 5 | |
| 20 Sept. |  Sunny | 23° /20° | 0.1 mm | 6 | |
| 21 Sept. | Sunny | 24° /19° | 0 mm | 6 | |
| 22 Sept. | Sunny | 25° /20° | 0.3 mm | 6 | |
| 23 Sept. | Sunny | 23° /21° | 0 mm | 6 | |
| 24 Sept. | Sunny | 25° /20° | 0 mm | 6 | |
| 25 Sept. | Sunny | 25° /21° | 0 mm | 6 | |
| 26 Sept. | Overcast | 27° /22° | 0 mm | 7 | |
| 27 Sept. | Patchy rain possible | 23° /18° | 9.3 mm | 5 | |
| 28 Sept. | Overcast | 20° /16° | 0 mm | 5 | |
| 29 Sept. | Patchy rain possible | 24° /21° | 0.5 mm | 6 | |
| 30 Sept. | Patchy rain possible | 25° /21° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Hallasan National Park 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 Hallasan National Park forecast closer to your planned date for the most up-to-date weather information.
Change Month
Hallasan National Park in September - FAQ
What are the expected maximum and minimum temperatures in Hallasan National Park during September?
During September, expect a variety of temperatures with highs around 27° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Hallasan National Park during September?
Significant rainfall exceeding 129.6 mm is expected in Hallasan National Park during September, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Hallasan National Park during September?
The average wind speed in Hallasan National Park during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hallasan National Park
Explore the daily rainfall trends and prepare for Hallasan National Parks September weather 💧
Typically, Hallasan National Park has 23 rainy days in September with a total of 129.6 mm of rainfall.
UV exposure in Hallasan National Park during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Hallasan National Park?Get accurate weather forecasts for Hallasan National Park, located at latitude 33.372 and longitude 126.558. Stay updated with localized weather information tailored for Hallasan National Park.
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