Climate averages 1991–2020
Yuanlin weather
in December.
A warm, moderately wet month: the 10th warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Yuanlin: daytime highs average 22.0°C and nights cool to about 15.1°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 50 mm of rain on roughly 6 days, which makes December a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 41 min on an average December day.
The nearest other city in this atlas is Nantou, Taiwan (10 km away). In December its highs average 20.5°C, 1.4°C cooler than Yuanlin, with 56 mm of rain.
Among the 28 cities listed in Taiwan, Yuanlin ranks 5th of 28 for the warmest December highs and joint 4th of 28 for the driest December (rainfall, lowest first). The mean December high of those 28 cities is 20.5°C; Yuanlin is 1.5°C warmer than that mean.
From December to January, average highs fall by 1.6°C to 20.3°C, and monthly rainfall rises from 50 mm to 52 mm.
The annual picture
December in context
Monthly rainfall
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
Yuanlin climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.3°C13.2°C | 13.2°C | 52 | 7.7 | 10.811 h |
| February | 21.2°C13.8°C | 13.8°C | 75 | 9.2 | 11.311 h |
| March | 23.4°C15.9°C | 15.9°C | 115 | 11.8 | 12.012 h |
| April | 26.1°C18.9°C | 18.9°C | 150 | 13.0 | 12.713 h |
| May | 28.2°C21.5°C | 21.5°C | 228 | 15.6 | 13.313 h |
| June | 29.4°C23.0°C | 23.0°C | 287 | 18.6 | 13.614 h |
| July | 30.1°C23.9°C | 23.9°C | 230 | 17.5 | 13.513 h |
| August | 29.5°C23.9°C | 23.9°C | 287 | 19.9 | 13.013 h |
| September | 29.1°C23.2°C | 23.2°C | 144 | 12.1 | 12.312 h |
| October | 27.7°C21.3°C | 21.3°C | 55 | 4.8 | 11.612 h |
| November | 25.6°C18.6°C | 18.6°C | 43 | 5.3 | 11.011 h |
| December, selected | 22.0°C15.1°C | 15.1°C | 50 | 6.1 | 10.711 h |
Rainfall is the average of the 30 separate monthly totals. A rain 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
- Nantou, Taiwan in DecemberTaiwan · 10 kmHigh 20.5°C · Low 13.5°C · 56 mm rain
- Caotun in DecemberTaiwan · 12 kmHigh 21.4°C · Low 14.1°C · 56 mm rain
- Chang-hua in DecemberTaiwan · 13 kmHigh 21.7°C · Low 15.5°C · 50 mm rain
- Taichung in DecemberTaiwan · 24 kmHigh 21.4°C · Low 14.5°C · 56 mm rain
- Douliu in DecemberTaiwan · 28 kmHigh 21.4°C · Low 14.1°C · 61 mm rain
- Puli in DecemberTaiwan · 40 kmHigh 21.6°C · Low 14.3°C · 65 mm rain
- Chiayi City in DecemberTaiwan · 55 kmHigh 21.5°C · Low 13.7°C · 60 mm rain
- Miaoli in DecemberTaiwan · 72 kmHigh 19.6°C · Low 15.4°C · 54 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 Yuanlin) is explained once on the Yuanlin year overview and on the Sources, method and limits page.
Chang-hua lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.