Climate averages 1991–2020
Anyang-si weather
in December.
A cold, fairly dry month: the 11th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Anyang-si: daytime highs average 3.8°C and nights cool to about -3.5°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 23 mm of rain on roughly 5 days, which makes December a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 38 min on an average December day.
The nearest other city in this atlas is Gwangmyeong (11 km away). In December its highs average 3.7°C, about as warm as Anyang-si, with 22 mm of rain.
Among the 79 cities listed in South Korea, Anyang-si ranks joint 59th of 79 for the warmest December highs and joint 15th of 79 for the driest December (rainfall, lowest first). The mean December high of those 79 cities is 5.6°C; Anyang-si is 1.9°C cooler than that mean.
From December to January, average highs fall by 2.1°C to 1.7°C, and monthly precipitation falls from 23 mm to 19 mm.
The annual picture
December 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
Anyang-si climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 1.7°C-5.7°C | -5.7°C | 19 | 3.5 | 9.910 h |
| February | 4.2°C-4.0°C | -4.0°C | 26 | 4.1 | 10.811 h |
| March | 9.2°C0.2°C | 0.2°C | 38 | 6.2 | 11.912 h |
| April | 15.5°C5.9°C | 5.9°C | 70 | 7.3 | 13.113 h |
| May | 20.7°C11.7°C | 11.7°C | 96 | 7.7 | 14.214 h |
| June | 25.0°C17.0°C | 17.0°C | 126 | 8.8 | 14.715 h |
| July | 27.2°C21.4°C | 21.4°C | 314 | 16.5 | 14.514 h |
| August | 28.0°C22.3°C | 22.3°C | 258 | 15.1 | 13.614 h |
| September | 24.3°C17.3°C | 17.3°C | 124 | 7.6 | 12.512 h |
| October | 18.4°C10.3°C | 10.3°C | 55 | 5.3 | 11.311 h |
| November | 10.8°C3.0°C | 3.0°C | 47 | 7.1 | 10.210 h |
| December, selected | 3.8°C-3.5°C | -3.5°C | 23 | 4.8 | 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
December in nearby cities
- Gwangmyeong in DecemberSouth Korea · 11 kmHigh 3.7°C · Low -4.2°C · 22 mm rain
- Ansan-si in DecemberSouth Korea · 12 kmHigh 4.1°C · Low -2.7°C · 28 mm rain
- Suwon in DecemberSouth Korea · 13 kmHigh 3.9°C · Low -3.9°C · 23 mm rain
- Bucheon-si in DecemberSouth Korea · 17 kmHigh 3.8°C · Low -3.7°C · 22 mm rain
- Seongnam-si in DecemberSouth Korea · 19 kmHigh 3.7°C · Low -4.3°C · 25 mm rain
- Seoul in DecemberSouth Korea · 20 kmHigh 3.5°C · Low -4.7°C · 23 mm rain
- Incheon in DecemberSouth Korea · 21 kmHigh 3.6°C · Low -3.5°C · 22 mm rain
- Hwaseong-si in DecemberSouth Korea · 23 kmHigh 4.2°C · Low -1.6°C · 28 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 Anyang-si) is explained once on the Anyang-si year overview and on the Sources, method and limits page.
Seoul lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.