South Korea weather
Loading live data…Latest for South Korea: European (ECMWF): 16° Overcast · American (NOAA GFS): 16° Overcast · German (DWD ICON): 16° Overcast.
The weather map: all three models at once
European, American, German side by side around South Korea and nearby towns.Live rain radar →Hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
10-day forecast, out to 14 days
where the models agree, and where they splitHeading to South Korea? South Korea, South Korea, sits at 37.6°N in a temperate climate zone. The averages on this page are measured at Seoul, the main gateway for AU travellers; inland and mountain areas run cooler. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast South Korea right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.
Where to go in South Korea
We cover one destination in South Korea, each with its own live three-model comparison and long-run averages. The table shows the typical daytime high in January and July and the wettest month, so you can see how much the coast, the cities and the islands differ before you pick dates.
Best time to visit South Korea
The most comfortable time to visit South Korea is usually April, May, September and October, when daytime highs sit in the pleasant 16-26°C range and the heaviest July rain is behind you.
South Korea weather by month
what to expect in South Korea through the year, 1991-2020 normals, Seoul (WMO)Here is South Korea's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to South Korea by season.
South Korea compared with Sydney
30-year averages: daytime highs month by month, rain and sunlightCooler through the year
average daytime high: South Korea 17°C, Sydney 23°C
Rain over a year
South Korea 1,418 mm, Sydney 1,148 mm
Sunlight vs a clear sky
solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)
On 30-year averages South Korea runs 6°C cooler than Sydney, with every month between −25°C and +11°C. Over a year it gets 24% more rain than Sydney.
Month by month in numbers
| Month | South Korea | Sydney | Difference | Sunlight, South Korea | Sunlight, Sydney |
|---|---|---|---|---|---|
| January | 2°C | 27°C | −25°C | 83% | 75% |
| February | 5°C | 28°C | −23°C | 82% | 73% |
| March | 11°C | 26°C | −15°C | 82% | 75% |
| April | 18°C | 24°C | −6°C | 78% | 77% |
| May | 24°C | 22°C | +2°C | 78% | 79% |
| June | 28°C | 18°C | +10°C | 74% | 74% |
| July | 29°C | 18°C | +11°C | 62% | 80% |
| August | 30°C | 20°C | +10°C | 70% | 82% |
| September | 26°C | 22°C | +4°C | 76% | 82% |
| October | 20°C | 24°C | −4°C | 84% | 77% |
| November | 12°C | 25°C | −13°C | 79% | 74% |
| December | 4°C | 27°C | −23°C | 80% | 74% |
Daytime highs and lows on this page are 1991-2020 averages. South Korea: station normals from Seoul (WMO), rain included. Sydney: station normals from Sydney Observatory Hill (WMO), rain included. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. Sydney stands in for Australia here; other cities have their own climate tables.