South Korea: where to swim in August?
South Korea, in August: the sea is at 26.2 °C on average along the coast, from 25.3 °C to 27.6 °C depending on the spot. Where the water is warmest (27.6 °C), it is very warm. Almost lukewarm: you can get in without any cold shock.
Sea temperature, month by month
| Month | Average temperature | Depending on the spot | Where it is warmest |
|---|---|---|---|
| January | 12.3 °C | 7.3 °C – 16.4 °C | cool |
| February | 10.9 °C | 5.3 °C – 15.1 °C | cool |
| March | 10.9 °C | 6.2 °C – 14.7 °C | cold |
| April | 12.8 °C | 8.7 °C – 15.7 °C | cool |
| May | 15.6 °C | 13.4 °C – 17.5 °C | cool |
| June | 19.8 °C | 18.9 °C – 20.9 °C | pleasant |
| July | 23.2 °C | 22.0 °C – 25.1 °C | warm |
| August | 26.2 °C | 25.3 °C – 27.6 °C | very warm |
| September | 24.1 °C | 22.7 °C – 25.6 °C | warm |
| October | 21.0 °C | 19.0 °C – 23.0 °C | warm |
| November | 17.7 °C | 14.8 °C – 20.6 °C | pleasant |
| December | 14.9 °C | 10.8 °C – 18.6 °C | cool |
Compared with July, the water warms up by 3.0 °C in August. The warmest month: August (26.2 °C). The coldest: February (10.9 °C).
Nearby, in August
- Taiwan 28.9 °C · very warm
- People's Republic of China 27.4 °C · very warm
- Palau 29.3 °C · very warm
- Federated States of Micronesia 29.6 °C · very warm
- India 28.3 °C · very warm
- Marshall Islands 29.6 °C · very warm
- Australia 19.8 °C · warm
- Finland 16.8 °C · cool
- Sweden 17.2 °C · cool
- Latvia 18.5 °C · pleasant
And right now?
For the temperature measured right now, station by station and to the hour: South Korea: water temperature
Frequently asked questions
What is the sea temperature in August?
South Korea, in August: 26.2 °C on average along the coast, from 25.3 °C in the coolest waters to 27.6 °C in the warmest (average of the years 2011 to 2025).
Can you swim in August?
Where the water is warmest (27.6 °C), it is very warm. Almost lukewarm: you can get in without any cold shock.
What is the best month for swimming?
The water is warmest in August (26.2 °C on average) and coldest in February (10.9 °C). Where the water is warmest, it goes above 20 °C in these months: June, July, August, September, October, November.
Where is the water warmest in August?
The warmest in August: Taiwan (28.9 °C), People's Republic of China (27.4 °C), Palau (29.3 °C). The coolest: Latvia (18.5 °C).
Where do these temperatures come from?
These are averages of the sea surface temperature from 2011 to 2025, computed from NOAA satellite images (OISST, one value about every 50 km), in a 100 km strip along the coasts of the main country: distant territories (overseas, remote islands) are not counted. It is an estimate, not a measurement taken at the beach: lakes and rivers are not included.