Jeju-si (Jeju City)
August
Weather in Jeju-si for August 2025
Your guide to Jeju-si weather in August - trends and predictions
In general, the average temperature in Jeju-si at the beginning of August is 31 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 28.3 °C by the end of August.
Jeju-si experiences an exceptionally high level of rainfall in August, with more than 20 rainy days on average.
Is August a good time to visit Jeju-si? check out the best time to travel to Jeju-si page.
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8
Dry days
23
Rainy days
0
Snow days
30°/25°
Temperatures
15 km/h
Avg max wind
79 %
Avg humidity
Jeju-si in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  32° | 2  31° | 3 31° | ||||
| 4  31° | 5 31° | 6 31° | 7 30° | 8 30° | 9 30° | 10 30° |
| 11 30° | 12  31° | 13 30° | 14 29° | 15 30° | 16 29° | 17  29° |
| 18 30° | 19 30° | 20 30° | 21  31° | 22 31° | 23 30° | 24 30° |
| 25  29° | 26  29° | 27 29° | 28 28° | 29 29° | 30 28° | 31  26° |
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Temperatures trend during August in Jeju-si
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Sunny | 32° /26° | 0 mm | 8 | |
| 2 Aug. | Patchy rain possible | 31° /26° | 0.4 mm | 7 | |
| 3 Aug. | Patchy rain possible | 31° /26° | 0.1 mm | 7 | |
| 4 Aug. | Patchy light rain with thunder | 31° /26° | 3.1 mm | 7 | |
| 5 Aug. | Patchy light rain with thunder | 31° /26° | 7.7 mm | 7 | |
| 6 Aug. | Patchy rain possible | 31° /26° | 2.7 mm | 7 | |
| 7 Aug. | Patchy rain possible | 30° /26° | 0.1 mm | 7 | |
| 8 Aug. | Patchy rain possible | 30° /25° | 1 mm | 7 | |
| 9 Aug. | Patchy rain possible | 30° /25° | 1.4 mm | 7 | |
| 10 Aug. | Light rain shower | 30° /25° | 1.8 mm | 7 | |
| 11 Aug. | Light rain shower | 30° /26° | 0.9 mm | 7 | |
| 12 Aug. | Partly cloudy | 31° /25° | 0 mm | 8 | |
| 13 Aug. | Patchy rain possible | 30° /24° | 0.3 mm | 7 | |
| 14 Aug. | Light rain shower | 29° /23° | 17.5 mm | 6 | |
| 15 Aug. | Light rain shower | 30° /23° | 9.2 mm | 7 | |
| 16 Aug. | Patchy light rain with thunder | 29° /23° | 18.8 mm | 6 | |
| 17 Aug. | Moderate or heavy rain with thunder | 29° /24° | 9.6 mm | 6 | |
| 18 Aug. | Patchy rain possible | 30° /24° | 1.6 mm | 7 | |
| 19 Aug. | Light rain shower | 30° /25° | 6.7 mm | 7 | |
| 20 Aug. | Light rain shower | 30° /25° | 3.6 mm | 7 | |
| 21 Aug. | Moderate rain at times | 31° /25° | 3.8 mm | 7 | |
| 22 Aug. | Patchy rain possible | 31° /25° | 2.8 mm | 7 | |
| 23 Aug. | Moderate or heavy rain shower | 30° /24° | 9.6 mm | 7 | |
| 24 Aug. | Moderate rain at times | 30° /25° | 3.2 mm | 7 | |
| 25 Aug. | Cloudy | 29° /24° | 0.1 mm | 6 | |
| 26 Aug. | Overcast | 29° /22° | 0.9 mm | 6 | |
| 27 Aug. | Patchy rain possible | 29° /23° | 1.7 mm | 7 | |
| 28 Aug. | Patchy rain possible | 28° /23° | 5.2 mm | 6 | |
| 29 Aug. | Light rain shower | 29° /24° | 7.6 mm | 7 | |
| 30 Aug. | Moderate or heavy rain shower | 28° /23° | 12.1 mm | 6 | |
| 31 Aug. | Light drizzle | 26° /22° | 1.4 mm | 7 | |
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Important Notice
Our weather forecast for Jeju-si in August 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-si forecast closer to your planned date for the most up-to-date weather information.
Jeju-si in August - FAQ
What are the expected maximum and minimum temperatures in Jeju-si during August?
During August, expect a variety of temperatures with highs around 30° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Jeju-si during August?
Significant rainfall exceeding 156.8 mm is expected in Jeju-si during August, occurring over more than 23 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Jeju-si during August?
The average wind speed in Jeju-si during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Jeju-si in August?
As you prepare for your trip to Jeju-si in August, 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 Jeju-si, during August, 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
- Sandals/Flip-flops: Comfortable for warm climates
- 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
- Insect Repellent: For destinations with mosquitos or other insects
August rainfall patterns in Jeju-si
Explore the daily rainfall trends and prepare for Jeju-sis August weather 💧
UV exposure in Jeju-si during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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