Sangju climate

South Korea · 36.42°N, 128.16°E · elevation 61 m · population 101,267

Warmest month
August
high 30 °C86 °F
Coldest month
January
low −8 °C18 °F
Wettest month
July
271 mm11 in
Best time to visit
May and October
by our comfort score
Annual precipitation
1,141 mm45 in
December driest
Year average
12 °C54 °F
monsoon-influenced hot-summer humid continental (Dwa)

Sangju (South Korea) has a monsoon-influenced hot-summer humid continental climate (Köppen Dwa). The average temperature over the year is 12 °C54 °F, and about 1,141 mm45 in of precipitation falls in an average year.

Temperature by month

Average highAverage low
-10°0°10°20°30°40°20°40°60°80°100°JFMAMJJASOND30°86°−8°18°January: high 2 °C / 35 °F, low -8 °C / 18 °FFebruary: high 5 °C / 41 °F, low -6 °C / 22 °FMarch: high 11 °C / 52 °F, low -1 °C / 29 °FApril: high 18 °C / 65 °F, low 5 °C / 40 °FMay: high 25 °C / 76 °F, low 11 °C / 52 °FJune: high 29 °C / 84 °F, low 17 °C / 62 °FJuly: high 30 °C / 85 °F, low 21 °C / 70 °FAugust: high 30 °C / 86 °F, low 21 °C / 70 °FSeptember: high 25 °C / 77 °F, low 15 °C / 60 °FOctober: high 19 °C / 67 °F, low 8 °C / 47 °FNovember: high 12 °C / 53 °F, low 1 °C / 34 °FDecember: high 4 °C / 38 °F, low -6 °C / 22 °F

Precipitation by month

Precipitation per month (mminches)
0100200300048JJanuary: 23 mm / 0.9 inFFebruary: 31 mm / 1.2 inMMarch: 46 mm / 1.8 inAApril: 81 mm / 3.2 inMMay: 79 mm / 3.1 inJJune: 125 mm / 4.9 inJJuly: 271 mm / 10.7 inAAugust: 237 mm / 9.3 inSSeptember: 134 mm / 5.3 inOOctober: 57 mm / 2.2 inNNovember: 36 mm / 1.4 inDDecember: 22 mm / 0.9 in27110.7

Sangju climate table

Monthly averages, 2001–2025
MonthHigh °C°FLow °C°FMean °C°FPrecip. mminFrost days
Jan235−818−326230.930
Feb541−622032311.227
Mar1152−129541461.823
Apr18655401152813.25
May257611521864793.10
Jun2984176223731254.90
Jul308521702577271110
Aug3086217026782379.30
Sep2577156020691345.30
Oct19678471457572.21
Nov1253134643361.415
Dec438−622−130220.929
Year3086−81812541,14145131

“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.

Humidity, cloud, sun and daylight
MonthHumid.CloudSolarDaylight
Jan80%47%2.69:56
Feb76%51%3.310:48
Mar73%53%4.311:52
Apr71%57%5.013:05
May69%59%5.614:05
Jun69%71%5.214:38
Jul83%77%4.414:25
Aug83%71%4.513:32
Sep82%67%3.912:21
Oct79%51%3.611:11
Nov79%49%2.610:10
Dec80%45%2.39:41

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 Sangju is like

The warmest month is August, with an average high of 30 °C86 °F and a low of 21 °C70 °F. The coldest is January, when highs average 2 °C35 °F and lows −8 °C18 °F. Seasons are strongly marked: the warmest month is on average 28.7 °C51.6 °F warmer than the coldest.

It is wet, with about 1,141 mm45 in of precipitation per year. The wettest three-month stretch is July–September, which brings 56% of the annual total. The wettest month is July (271 mm11 in), the driest is December (22 mm0.9 in).

Relative humidity ranges from 69% in May to 83% in July. The clearest skies (lowest average cloud amount, 45%) are typical of December. Average wind speed near the ground ranges from 7 km/h (4 mph) in September to 11 km/h (7 mph) in January. Daylight lasts from about 9.7 hours in December to 14.6 hours in June.

A lasting snow cover is typical in December–February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in January, about 14 cm).

Best time to visit Sangju

Based on these averages, the most comfortable months for sightseeing and outdoor activities are May and October: average highs of 19 °C67 °F to 25 °C76 °F with 57 mm2.2 in to 79 mm3.1 in of precipitation per month.

The most challenging month is January, which is cold, with average highs of 2 °C35 °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 Sangju

  • Winter (December–February) — highs 235 to 5 °C41 °F, lows −818 to −6 °C22 °F, about 25 mm1.0 in of precipitation a month. Pack a winter coat, hat, gloves and warm, non-slip boots and shoes with good grip, as frost is common.
  • Spring (March–May) — highs 1152 to 25 °C76 °F, lows −129 to 11 °C52 °F, about 69 mm2.7 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
  • Summer (June–August) — highs 2984 to 30 °C86 °F, lows 1762 to 21 °C70 °F, about 211 mm8.3 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 1253 to 25 °C77 °F, lows 134 to 15 °C60 °F, about 76 mm3.0 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 Sangju compares

Compared with Gumi, about 37 km to the southeast, Sangju is on average 0.4 °C0.7 °F cooler and receives 6% less precipitation (1,141 mm45 in vs 1,215 mm48 in). The difference is largest in December (0.8 °C1.4 °F cooler).

Of the 34 places in South Korea covered by World Climates, Sangju is the 24th warmest by annual mean temperature and the 34th 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: Wŏnsan (North Korea, Dwa), Chongdan-up (North Korea, Dwa) and Kangnyŏng (North Korea, Dwa).

Nearby places

  • Gumi 37 km · 12 °C54 °F · 1,215 mm48 in
  • Andong 53 km · 12 °C53 °F · 1,159 mm46 in
  • Chungju 66 km · 12 °C53 °F · 1,221 mm48 in
  • Daejeon 70 km · 12 °C54 °F · 1,225 mm48 in
  • Daegu 72 km · 12 °C54 °F · 1,201 mm47 in
  • Cheonan 100 km · 12 °C53 °F · 1,232 mm48 in
  • Wŏnju 106 km · 11 °C52 °F · 1,309 mm52 in
  • Jeonju 112 km · 12 °C54 °F · 1,267 mm50 in

All places in South Korea

Frequently asked questions

What is the warmest month in Sangju?

August is the warmest month in Sangju, with an average high of 30 °C (86 °F) and an average low of 21 °C (70 °F).

What is the coldest month in Sangju?

January is the coldest month, with an average high of 2 °C (35 °F) and an average low of -8 °C (18 °F).

When does it rain the most in Sangju?

July is the wettest month with about 271 mm (10.7 in) of precipitation; December is the driest with about 22 mm (0.9 in).

What is the best time to visit Sangju?

Judging by long-term averages, the most comfortable months are May and 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 221 m, while Sangju lies at about 61 m. Temperatures on this page were therefore adjusted by +1 °C1.9 °F using the standard lapse rate of 6.5 °C per 1,000 m.

Sources and method