Changwon climate
Changwon is warmest in August, with average highs of 29 °C, and coldest in January, when nights average -1.5 °C. July is the wettest month (248 mm) and December the driest (27 mm). Figures are 1991–2020 climate normals.
Across a full year Changwon averages 1,323 mm of rain, 92 days above 25 °C and 60 days below freezing.
South Korea · population 1,025,702 · 1991–2020 normals
Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month
- Warmest month August 29 °C
- Coldest month January -1.5 °C
- Driest month December 27 mm
- Wettest month July 248 mm
- Least cloud December 37 % cloud
- Hottest on record July 36 °C
- Coldest on record January -11 °C
What to expectChangwon through the year
Changwon has a clear annual cycle: average daily highs run from 6.1 °C in January to 29 °C in August, a swing of 24 °C in mean temperature across the year.
Counted across a normal year, 92 days a year reach 25 °C, 17 of them reach 30 °C, 60 nights drop below freezing. The warmest reading in the 1991–2020 record is 36 °C, in July.
Rain is strongly seasonal. July averages 248 mm against 27 mm in December — 9.2 times as much. Planning around the dry months matters more here than planning around temperature.
Month by month
| Month | Avg high | Rainfall | Cloud |
|---|---|---|---|
| January | 6.1 °C | 30 mm | 42 % |
| February | 8.4 °C | 40 mm | 47 % |
| March | 12.6 °C | 76 mm | 53 % |
| April | 17.7 °C | 108 mm | 55 % |
| May | 22.1 °C | 115 mm | 59 % |
| June | 25.1 °C | 176 mm | 71 % |
| July | 27.7 °C | 248 mm | 74 % |
| August | 28.8 °C | 225 mm | 65 % |
| September | 25.3 °C | 165 mm | 60 % |
| October | 20.6 °C | 68 mm | 44 % |
| November | 14.3 °C | 46 mm | 40 % |
| December | 8.0 °C | 27 mm | 37 % |
Temperature month by month
| Month | Avg high | Avg low | Mean | Record high | Record low | Days above 25 °C | Days above 30 °C | Days below 0 °C |
|---|---|---|---|---|---|---|---|---|
| January | 6.1 °C | -1.5 °C | 1.9 °C | 15.9 °C | -11.4 °C | 0 | 0 | 22 |
| February | 8.4 °C | -0.1 °C | 3.8 °C | 19.1 °C | -11.1 °C | 0 | 0 | 16 |
| March | 12.6 °C | 3.7 °C | 7.9 °C | 21.4 °C | -5.1 °C | 0 | 0 | 5 |
| April | 17.7 °C | 8.6 °C | 12.9 °C | 25.9 °C | -0.2 °C | 0 | 0 | 0 |
| May | 22.1 °C | 13.5 °C | 17.6 °C | 31.4 °C | 6.0 °C | 4 | 0 | 0 |
| June | 25.1 °C | 18.0 °C | 21.3 °C | 32.0 °C | 11.5 °C | 16 | 0 | 0 |
| July | 27.7 °C | 22.4 °C | 24.7 °C | 35.7 °C | 15.6 °C | 26 | 6 | 0 |
| August | 28.8 °C | 23.3 °C | 25.8 °C | 35.7 °C | 17.4 °C | 29 | 10 | 0 |
| September | 25.3 °C | 18.8 °C | 21.8 °C | 33.9 °C | 12.0 °C | 16 | 1 | 0 |
| October | 20.6 °C | 12.5 °C | 16.3 °C | 27.9 °C | 2.0 °C | 1 | 0 | 0 |
| November | 14.3 °C | 6.1 °C | 9.9 °C | 23.6 °C | -4.0 °C | 0 | 0 | 1 |
| December | 8.0 °C | 0.2 °C | 3.8 °C | 18.0 °C | -8.7 °C | 0 | 0 | 16 |
Rain, sun and wind month by month
| Month | Rainfall | Wet days | Daylight | Cloud cover | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 30 mm | 4 | 10 h/day | 42 % | 58 % | 17 km/h |
| February | 40 mm | 4 | 11 h/day | 47 % | 58 % | 17 km/h |
| March | 76 mm | 7 | 12 h/day | 53 % | 63 % | 18 km/h |
| April | 108 mm | 8 | 13 h/day | 55 % | 67 % | 18 km/h |
| May | 115 mm | 8 | 14 h/day | 59 % | 72 % | 16 km/h |
| June | 176 mm | 10 | 15 h/day | 71 % | 80 % | 16 km/h |
| July | 248 mm | 15 | 14 h/day | 74 % | 87 % | 16 km/h |
| August | 225 mm | 15 | 13 h/day | 65 % | 84 % | 16 km/h |
| September | 165 mm | 10 | 12 h/day | 60 % | 79 % | 15 km/h |
| October | 68 mm | 5 | 11 h/day | 44 % | 71 % | 15 km/h |
| November | 46 mm | 4 | 10 h/day | 40 % | 67 % | 16 km/h |
| December | 27 mm | 3 | 9.8 h/day | 37 % | 61 % | 17 km/h |
How Changwon compares
The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.
| Destination | Summer high | Winter low | Rain per year | Days above 25 °C |
|---|---|---|---|---|
| Changwon | 29 °C | -1.5 °C | 1,323 mm | 92 |
| Busan · South Korea | 28 °C | -0.06 °C | 1,329 mm | 62 |
| Geoje · South Korea | 27 °C | 1.6 °C | 1,349 mm | 52 |
| Chinju · South Korea | 29 °C | -3.7 °C | 1,432 mm | 105 |
| Gyeongsan-si · South Korea | 30 °C | -3.3 °C | 1,055 mm | 114 |
| Ulsan · South Korea | 28 °C | -1.4 °C | 1,246 mm | 81 |
| Daegu · South Korea | 30 °C | -3.4 °C | 1,089 mm | 114 |
Planning a trip? See the best time to visit Changwon.
QuestionsCommon questions about Changwon’s climate
When is the best time to visit Changwon?
That depends on what you want, so the honest answer is a comparison rather than a single month. May, June, September sit closest to 20 °C on average, August is the warmest month and December the driest. The month-by-month table above has the full picture.
How hot does Changwon get?
In August, the warmest month, daily highs average 29 °C. About 17 days a year pass 30 °C. The highest value in the 1991–2020 record is 36 °C.
How cold does it get in winter?
Nights average -1.5 °C in January, the coldest month. A normal year has 60 nights below freezing.
Which month is wettest in Changwon?
July, averaging 248 mm over 15 days with rain. The driest month is December with 27 mm. The year as a whole averages 1,323 mm.
Are these figures a forecast?
No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Changwon rather than what any particular week will bring. Individual years can differ substantially from the normal.
Data sources and method
- ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
- Open-Meteo — Open-Meteo.com. CC BY 4.0
- NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
- GeoNames — GeoNames.org. CC BY 4.0
- Normal period
- 1991–2020
- Dataset version
- era5-1991-2020-scores1.1
- Last processed
Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.