South Korea: where to swim in February?
South Korea, in February: the sea is at 10.9 °C on average along the coast, from 5.3 °C to 15.1 °C depending on the spot. Where the water is warmest (15.1 °C), it is cool. Swimming is fine if you like cool water: you get used to it after a few minutes, especially in mild weather.
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 January, the water cools down by 1.4 °C in February. The warmest month: August (26.2 °C). The coldest: February (10.9 °C).
Nearby, in February
- Taiwan 22.3 °C · warm
- People's Republic of China 11.1 °C · pleasant
- Palau 28.5 °C · very warm
- Federated States of Micronesia 28.8 °C · very warm
- India 26.5 °C · very warm
- Marshall Islands 28.5 °C · very warm
- Australia 24.8 °C · very warm
- Finland 0.9 °C · very cold
- Sweden 2.1 °C · very cold
- Latvia 2.4 °C · very cold
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 February?
South Korea, in February: 10.9 °C on average along the coast, from 5.3 °C in the coolest waters to 15.1 °C in the warmest (average of the years 2011 to 2025).
Can you swim in February?
Where the water is warmest (15.1 °C), it is cool. Swimming is fine if you like cool water: you get used to it after a few minutes, especially in mild weather.
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 February?
The warmest in February: Taiwan (22.3 °C), People's Republic of China (11.1 °C), Palau (28.5 °C). The coolest: Latvia (2.4 °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.