Click on a day for an hourly weather forecast
The weather in South Korea in August is very hot. The average temperatures are between 24°C and 29°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of August in South Korea. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in South Korea in August 2025.
If you’re planning to visit South Korea in the near future, we highly recommend that you review the 14 day weather forecast for South Korea before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 1° / -4° | 4 | 19 | 8 | 25 mm | Awful | South Korea in January |
| February | 4° / -1° | 2 | 22 | 4 | 35 mm | Awful | South Korea in February |
| March | 10° / 4° | 3 | 26 | 2 | 59 mm | Bad | South Korea in March |
| April | 15° / 9° | 5 | 25 | 0 | 83 mm | Good | South Korea in April |
| May | 21° / 14° | 5 | 26 | 0 | 119 mm | Good | South Korea in May |
| June | 25° / 19° | 5 | 25 | 0 | 138 mm | Perfect | South Korea in June |
| July | 28° / 23° | 11 | 20 | 0 | 438 mm | Good | South Korea in July |
| August | 29° / 24° | 10 | 21 | 0 | 325 mm | Ok | South Korea in August |
| September | 26° / 20° | 5 | 25 | 0 | 156 mm | Perfect | South Korea in September |
| October | 20° / 14° | 3 | 28 | 0 | 77 mm | Good | South Korea in October |
| November | 12° / 7° | 4 | 24 | 2 | 86 mm | Bad | South Korea in November |
| December | 3° / -1° | 5 | 18 | 8 | 40 mm | Awful | South Korea in December |