5-day weather forecast Seoul 20-05-2026
Weather forecast Seoul Wednesday, May 20 20.05.2026: sunny, temperature from 19 °C to 22 °C.
Precipitation probability 67%. Wind up to 3.5 m/s (gusts 4.03 m/s). Air humidity 39–63%, atmospheric pressure 758–761 mm Hg, UV index up to 7.7.
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% | 8% | 39% | 761 mm Hg | ENE 67° 1.89 (2.89) m/s | 0 |
| 01:00 | Clear | 22 °C | 0% | 7% | 40% | 761 mm Hg | ENE 60° 1.89 (2.92) m/s | 0 |
| 02:00 | Clear | 21 °C | 0% | 10% | 42% | 761 mm Hg | ENE 62° 1.89 (3.03) m/s | 0 |
| 03:00 | Clear | 21 °C | 0% | 14% | 43% | 760 mm Hg | ENE 59° 2 (3.25) m/s | 0 |
| 04:00 | Clear | 20 °C | 0% | 14% | 44% | 759 mm Hg | ENE 66° 1.89 (3.11) m/s | 0 |
| 05:00 | Clear | 20 °C | 0% | 12% | 44% | 759 mm Hg | ENE 65° 1.31 (2.08) m/s | 0 |
| 06:00 |  Sunny | 20 °C | 0% | 11% | 45% | 760 mm Hg | E 94° 0.5 (0.75) m/s | 0.1 |
| 07:00 | Sunny | 20 °C | 0% | 12% | 43% | 760 mm Hg | E 90° 0.5 (0.67) m/s | 0.5 |
| 08:00 | Sunny | 20 °C | 0% | 13% | 44% | 760 mm Hg | ESE 105° 0.81 (1.11) m/s | 1.4 |
| 09:00 | Sunny | 21 °C | 0% | 22% | 43% | 760 mm Hg | E 83° 0.5 (0.67) m/s | 3.5 |
| 10:00 |  Partly cloudy | 21 °C | 0% | 48% | 42% | 760 mm Hg | ENE 70° 0.5 (0.64) m/s | 5.1 |
| 11:00 | Partly cloudy | 22 °C | 0% | 48% | 40% | 760 mm Hg | S 186° 1.11 (1.36) m/s | 6.4 |
| 12:00 | Partly cloudy | 22 °C | 0% | 48% | 40% | 760 mm Hg | S 178° 1.89 (2.31) m/s | 7 |
| 13:00 | Partly cloudy | 22 °C | 0% | 47% | 40% | 760 mm Hg | SSE 164° 2.61 (3) m/s | 7.7 |
| 14:00 |  Patchy rain possible | 21 °C | 67% (0.01 mm/hr) | 86% | 48% | 760 mm Hg | SSE 153° 3.5 (4.03) m/s | 3.9 |
| 15:00 | Patchy rain possible | 20 °C | 69% (0.03 mm/hr) | 73% | 54% | 759 mm Hg | SE 146° 2.81 (3.22) m/s | 3.5 |
| 16:00 | Partly cloudy | 21 °C | 0% | 46% | 52% | 759 mm Hg | ESE 116° 2.31 (2.64) m/s | 1.3 |
| 17:00 | Patchy rain possible | 21 °C | 62% (0.01 mm/hr) | 83% | 51% | 758 mm Hg | ESE 111° 2.61 (3.08) m/s | 0.6 |
| 18:00 | Patchy rain possible | 20 °C | 100% (0.07 mm/hr) | 75% | 55% | 759 mm Hg | ESE 123° 3 (3.64) m/s | 0.3 |
| 19:00 | Patchy rain possible | 19 °C | 100% (0.07 mm/hr) | 72% | 63% | 759 mm Hg | ESE 123° 3.11 (3.92) m/s | 0 |
| 20:00 |  Partly cloudy | 19 °C | 0% | 48% | 63% | 759 mm Hg | ESE 106° 2.39 (3.19) m/s | 0 |
| 21:00 | Partly cloudy | 19 °C | 0% | 49% | 58% | 759 mm Hg | E 83° 2.11 (2.92) m/s | 0 |
| 22:00 | Partly cloudy | 19 °C | 0% | 48% | 57% | 760 mm Hg | ENE 77° 2.31 (3.28) m/s | 0 |
| 23:00 | Partly cloudy | 19 °C | 0% | 47% | 58% | 759 mm Hg | E 82° 2.69 (3.89) 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.