Yangsan climate
Yangsan (South Korea) has a monsoon-influenced hot-summer humid continental climate (Köppen Dwa). The average temperature over the year is 13 °C56 °F, and about 1,342 mm53 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Yangsan climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 439 | −621 | −130 | 271.1 | 29 |
| Feb | 745 | −425 | 235 | 431.7 | 25 |
| Mar | 1355 | 032 | 643 | 632.5 | 18 |
| Apr | 1966 | 643 | 1254 | 1104.3 | 3 |
| May | 2476 | 1253 | 1865 | 1144.5 | 0 |
| Jun | 2882 | 1763 | 2272 | 1515.9 | 0 |
| Jul | 2985 | 2271 | 2578 | 28511 | 0 |
| Aug | 3086 | 2272 | 2679 | 2529.9 | 0 |
| Sep | 2678 | 1763 | 2170 | 1616.3 | 0 |
| Oct | 2169 | 1049 | 1559 | 692.7 | 1 |
| Nov | 1456 | 236 | 846 | 401.6 | 12 |
| Dec | 643 | −425 | 134 | 271.1 | 26 |
| Year | 3086 | −621 | 1356 | 1,34253 | 114 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 78% | 55% | 2.6 | 10:01 |
| Feb | 74% | 60% | 3.2 | 10:51 |
| Mar | 73% | 57% | 4.1 | 11:52 |
| Apr | 72% | 58% | 4.9 | 13:02 |
| May | 73% | 62% | 5.4 | 14:01 |
| Jun | 76% | 73% | 4.9 | 14:32 |
| Jul | 86% | 73% | 4.6 | 14:19 |
| Aug | 84% | 66% | 4.7 | 13:29 |
| Sep | 83% | 67% | 3.8 | 12:21 |
| Oct | 79% | 54% | 3.5 | 11:13 |
| Nov | 78% | 51% | 2.7 | 10:15 |
| Dec | 78% | 52% | 2.4 | 9:47 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Yangsan is like
The warmest month is August, with an average high of 30 °C86 °F and a low of 22 °C72 °F. The coldest is January, when highs average 4 °C39 °F and lows −6 °C21 °F. Seasons are strongly marked: the warmest month is on average 27.2 °C49 °F warmer than the coldest.
It is wet, with about 1,342 mm53 in of precipitation per year. The wettest three-month stretch is July–September, which brings 52% of the annual total. The wettest month is July (285 mm11 in), the driest is January (27 mm1.1 in).
Relative humidity ranges from 72% in April to 86% in July. The clearest skies (lowest average cloud amount, 51%) are typical of November. Average wind speed near the ground ranges from 8 km/h (5 mph) in June to 10 km/h (6 mph) in April. Daylight lasts from about 9.8 hours in December to 14.5 hours in June.
Best time to visit Yangsan
Based on these averages, the most comfortable months for sightseeing and outdoor activities are October: average highs of 21 °C69 °F to 21 °C69 °F with 69 mm2.7 in to 69 mm2.7 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 4 °C39 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Yangsan
- Winter (December–February) — highs 439 to 7 °C45 °F, lows −621 to −4 °C25 °F, about 32 mm1.3 in of precipitation a month. Pack a warm coat, layers and closed shoes, an extra layer for the cooler mornings and evenings and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1355 to 24 °C76 °F, lows 032 to 12 °C53 °F, about 96 mm3.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Summer (June–August) — highs 2882 to 30 °C86 °F, lows 1763 to 22 °C72 °F, about 229 mm9.0 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Autumn (September–November) — highs 1456 to 26 °C78 °F, lows 236 to 17 °C63 °F, about 90 mm3.5 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
How Yangsan compares
Compared with Busan, about 27 km to the south, Yangsan is on average 1.3 °C2.3 °F cooler and receives 10% less precipitation (1,342 mm53 in vs 1,488 mm59 in). The difference is largest in January (3.6 °C6.5 °F cooler).
Of the 34 places in South Korea covered by World Climates, Yangsan is the 13th warmest by annual mean temperature and the 10th wettest by annual precipitation. See all of them on the South Korea climate page.
Places in other countries with the most similar temperature and rainfall pattern: Topeka (United States, Dfa), Kansas City (United States, Dfa) and Olathe (United States, Dfa).
Nearby places
- Gijang 20 km · 16 °C61 °F · 1,520 mm60 in
- Busan 27 km · 14 °C58 °F · 1,488 mm59 in
- Ulsan 34 km · 15 °C59 °F · 1,322 mm52 in
- Changwon 34 km · 14 °C58 °F · 1,488 mm59 in
- Gyeongju 58 km · 14 °C57 °F · 1,186 mm47 in
- Geoje 66 km · 14 °C58 °F · 1,488 mm59 in
- Daegu 71 km · 12 °C54 °F · 1,201 mm47 in
- Pohang 82 km · 14 °C58 °F · 1,186 mm47 in
Frequently asked questions
What is the warmest month in Yangsan?
August is the warmest month in Yangsan, with an average high of 30 °C (86 °F) and an average low of 22 °C (72 °F).
What is the coldest month in Yangsan?
January is the coldest month, with an average high of 4 °C (39 °F) and an average low of -6 °C (21 °F).
When does it rain the most in Yangsan?
July is the wettest month with about 285 mm (11.2 in) of precipitation; January is the driest with about 27 mm (1.1 in).
What is the best time to visit Yangsan?
Judging by long-term averages, the most comfortable months are October.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 188 m, while Yangsan lies at about 6 m. Temperatures on this page were therefore adjusted by +1.2 °C2.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.