Climate averages 1991–2020
Suwon weather
in March.
A cool, fairly dry month: the 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Suwon: daytime highs average 9.8°C and nights cool to about -0.2°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 39 mm of rain on roughly 6 days, which makes March a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.
The nearest other city in this atlas is Anyang-si (13 km away). In March its highs average 9.2°C, 0.5°C cooler than Suwon, with 38 mm of rain.
Among the 79 cities listed in South Korea, Suwon ranks joint 64th of 79 for the warmest March highs and joint 11th of 79 for the driest March (rainfall, lowest first). The mean March high of those 79 cities is 10.9°C; Suwon is 1.2°C cooler than that mean.
From March to April, average highs rise by 6.5°C to 16.2°C, and monthly rainfall rises from 39 mm to 69 mm.
The annual picture
March in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Suwon climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.9°C-5.9°C | -5.9°C | 20 | 3.8 | 9.910 h |
| February | 4.5°C-4.2°C | -4.2°C | 27 | 4.1 | 10.811 h |
| March, selected | 9.8°C-0.2°C | -0.2°C | 39 | 6.1 | 11.912 h |
| April | 16.2°C5.4°C | 5.4°C | 69 | 7.1 | 13.113 h |
| May | 21.6°C11.3°C | 11.3°C | 88 | 7.1 | 14.114 h |
| June | 25.9°C16.9°C | 16.9°C | 118 | 7.6 | 14.715 h |
| July | 27.7°C21.3°C | 21.3°C | 279 | 15.3 | 14.514 h |
| August | 28.4°C22.1°C | 22.1°C | 231 | 14.0 | 13.614 h |
| September | 24.5°C16.7°C | 16.7°C | 124 | 7.8 | 12.512 h |
| October | 18.6°C9.5°C | 9.5°C | 55 | 5.2 | 11.311 h |
| November | 11.0°C2.4°C | 2.4°C | 47 | 7.3 | 10.210 h |
| December | 3.9°C-3.9°C | -3.9°C | 23 | 5.1 | 9.610 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Anyang-si in MarchSouth Korea · 13 kmHigh 9.2°C · Low 0.2°C · 38 mm rain
- Osan in MarchSouth Korea · 16 kmHigh 10.2°C · Low 0.1°C · 39 mm rain
- Ansan-si in MarchSouth Korea · 17 kmHigh 9.2°C · Low 0.7°C · 42 mm rain
- Hwaseong-si in MarchSouth Korea · 19 kmHigh 8.2°C · Low 1.4°C · 42 mm rain
- Seongnam-si in MarchSouth Korea · 20 kmHigh 9.9°C · Low -0.4°C · 43 mm rain
- Gwangmyeong in MarchSouth Korea · 24 kmHigh 9.7°C · Low -0.2°C · 36 mm rain
- Gwangju, South Korea in MarchSouth Korea · 26 kmHigh 10.5°C · Low 0.0°C · 43 mm rain
- Bucheon-si in MarchSouth Korea · 31 kmHigh 9.2°C · Low 0.1°C · 36 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Suwon) is explained once on the Suwon year overview and on the Sources, method and limits page.
Osan lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.