5-day weather forecast Seoul 20-05-2026
Weather forecast Seoul Wednesday, May 20 20.05.2026: light rain, temperature from 15 °C to 22 °C.
Precipitation probability 88%. Wind up to 4.61 m/s (gusts 6.28 m/s). Air humidity 45–90%, atmospheric pressure 758–761 mm Hg, UV index up to 7.6.
Sunrise 05:19
Sunset 19:39
Sunset 19:39
Waxing Crescent15% illuminated
Moonrise 08:10 · Moonset 23:42
Moonrise 08:10 · Moonset 23:42
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 22 °C | 0% | 17% | 45% | 761 mm Hg | ESE 112° 1.19 (1.92) m/s | 0 |
| 01:00 |  Partly cloudy | 21 °C | 0% | 27% | 46% | 761 mm Hg | ENE 76° 1.19 (1.92) m/s | 0 |
| 02:00 | Partly cloudy | 21 °C | 0% | 26% | 46% | 761 mm Hg | ENE 59° 1.31 (2.11) m/s | 0 |
| 03:00 | Clear | 21 °C | 0% | 13% | 47% | 760 mm Hg | NE 47° 1.89 (3.08) m/s | 0 |
| 04:00 | Clear | 21 °C | 0% | 11% | 48% | 760 mm Hg | ENE 59° 1.69 (2.78) m/s | 0 |
| 05:00 | Clear | 20 °C | 0% | 23% | 48% | 760 mm Hg | ENE 71° 1 (1.64) m/s | 0 |
| 06:00 |  Partly cloudy | 20 °C | 0% | 36% | 48% | 760 mm Hg | E 82° 1.39 (2.28) m/s | 0.1 |
| 07:00 | Partly cloudy | 20 °C | 0% | 49% | 47% | 760 mm Hg | E 79° 0.89 (1.39) m/s | 0.5 |
| 08:00 | Partly cloudy | 21 °C | 0% | 49% | 46% | 760 mm Hg | ESE 122° 1 (1.42) m/s | 1.4 |
| 09:00 |  Patchy rain possible | 21 °C | 88% (0.01 mm/hr) | 50% | 46% | 760 mm Hg | S 170° 1 (1.36) m/s | 3.5 |
| 10:00 | Patchy rain possible | 21 °C | 61% (0.02 mm/hr) | 69% | 48% | 761 mm Hg | NNE 30° 0.61 (0.83) m/s | 5.1 |
| 11:00 | Patchy rain possible | 21 °C | 89% (0.02 mm/hr) | 84% | 48% | 761 mm Hg | E 88° 0.89 (1.22) m/s | 6.4 |
| 12:00 | Patchy rain possible | 20 °C | 100% (0.13 mm/hr) | 53% | 51% | 761 mm Hg | SE 130° 2.5 (3.28) m/s | 6.9 |
| 13:00 | Patchy rain possible | 20 °C | 100% (0.12 mm/hr) | 56% | 55% | 761 mm Hg | ESE 109° 2.81 (3.61) m/s | 7.6 |
| 14:00 |  Patchy light drizzle | 18 °C | 100% (0.41 mm/hr) | 72% | 64% | 760 mm Hg | E 84° 4 (5.19) m/s | 4 |
| 15:00 |  Patchy light rain | 17 °C | 100% (0.77 mm/hr) | 68% | 74% | 760 mm Hg | E 90° 3.89 (5.11) m/s | 3.5 |
| 16:00 |  Light drizzle | 17 °C | 100% (0.75 mm/hr) | 100% | 79% | 759 mm Hg | ENE 77° 4.11 (5.47) m/s | 1.3 |
| 17:00 |  Light rain | 16 °C | 100% (1 mm/hr) | 100% | 84% | 759 mm Hg | ENE 71° 4.61 (6.28) m/s | 0.6 |
| 18:00 | Light drizzle | 16 °C | 100% (0.64 mm/hr) | 87% | 85% | 758 mm Hg | ENE 59° 4 (5.53) m/s | 0.3 |
| 19:00 | Light rain | 16 °C | 100% (1.69 mm/hr) | 100% | 87% | 759 mm Hg | ENE 61° 3.31 (4.58) m/s | 0 |
| 20:00 |  Light rain | 15 °C | 100% (1.05 mm/hr) | 85% | 88% | 758 mm Hg | ENE 61° 3.89 (5.58) m/s | 0 |
| 21:00 |  Moderate rain | 15 °C | 100% (3.04 mm/hr) | 100% | 89% | 759 mm Hg | ENE 60° 3.19 (4.56) m/s | 0 |
| 22:00 | Light rain | 15 °C | 100% (2.44 mm/hr) | 100% | 90% | 759 mm Hg | ENE 59° 3.31 (4.75) m/s | 0 |
| 23:00 | Light rain | 15 °C | 100% (0.94 mm/hr) | 100% | 90% | 758 mm Hg | ENE 57° 3.61 (5.25) m/s | 0 |
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Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.