Click on a day for an hourly weather forecast
The temperatures in Seoul in October are usually low and can range between 14°C and 20°C.
You can expect about 3 to 8 days of rain in Seoul during the month of October. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Seoul in October 2025.
If you’re planning to visit Seoul in the near future, we highly recommend that you review the 14 day weather forecast for Seoul before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -4° | 4 | 19 | 8 | 25 mm | Awful | Seoul in January |
| February | 4° / -1° | 2 | 22 | 4 | 35 mm | Awful | Seoul in February |
| March | 10° / 4° | 3 | 26 | 2 | 59 mm | Bad | Seoul in March |
| April | 15° / 9° | 5 | 25 | 0 | 83 mm | Good | Seoul in April |
| May | 21° / 14° | 5 | 26 | 0 | 119 mm | Good | Seoul in May |
| June | 25° / 19° | 5 | 25 | 0 | 138 mm | Perfect | Seoul in June |
| July | 28° / 23° | 11 | 20 | 0 | 438 mm | Good | Seoul in July |
| August | 29° / 24° | 10 | 21 | 0 | 325 mm | Ok | Seoul in August |
| September | 26° / 20° | 5 | 25 | 0 | 156 mm | Perfect | Seoul in September |
| October | 20° / 14° | 3 | 28 | 0 | 77 mm | Good | Seoul in October |
| November | 12° / 7° | 4 | 24 | 2 | 86 mm | Bad | Seoul in November |
| December | 3° / -1° | 5 | 18 | 8 | 40 mm | Awful | Seoul in December |