Climate averages 1991–2020
Yunnanyi weather
in December.
A mild, very dry month: one of the coolest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Yunnanyi: daytime highs average 15.0°C and nights cool to about 4.3°C. By daytime temperature it is one of the coolest months of the year.
Expect about 7.4 mm of rain on roughly 2 days, which makes December a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 35 min on an average December day.
The nearest other city in this atlas is Xiangcheng (14 km away). In December its highs average 14.9°C, about as warm as Yunnanyi, with 11 mm of rain.
Among the 884 cities listed in China, Yunnanyi ranks joint 144th of 884 for the warmest December highs and joint 181st of 884 for the driest December (rainfall, lowest first). The mean December high of those 884 cities is 7.5°C; Yunnanyi is 7.4°C warmer than that mean.
From December to January, average highs stay level at 15.0°C, and monthly rainfall rises from 7.4 mm to 15 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
Yunnanyi climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 15.0°C3.5°C | 3.5°C | 15 | 2.5 | 10.711 h |
| February | 17.4°C5.1°C | 5.1°C | 12 | 2.8 | 11.311 h |
| March | 20.9°C8.2°C | 8.2°C | 17 | 3.3 | 12.012 h |
| April | 23.7°C11.0°C | 11.0°C | 25 | 3.7 | 12.713 h |
| May | 24.8°C13.6°C | 13.6°C | 69 | 8.2 | 13.413 h |
| June | 24.7°C16.2°C | 16.2°C | 121 | 14.2 | 13.714 h |
| July | 23.3°C16.1°C | 16.1°C | 184 | 22.1 | 13.614 h |
| August | 23.1°C15.6°C | 15.6°C | 179 | 21.7 | 13.013 h |
| September | 22.0°C14.5°C | 14.5°C | 109 | 17.3 | 12.312 h |
| October | 20.1°C12.0°C | 12.0°C | 58 | 9.1 | 11.612 h |
| November | 17.4°C7.5°C | 7.5°C | 19 | 3.1 | 10.911 h |
| December, selected | 15.0°C4.3°C | 4.3°C | 7.4 | 1.9 | 10.611 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
- Xiangcheng in DecemberChina · 14 kmHigh 14.9°C · Low 4.1°C · 11 mm rain
- Micheng in DecemberChina · 22 kmHigh 17.0°C · Low 5.8°C · 15 mm rain
- Jinniu in DecemberChina · 43 kmHigh 18.7°C · Low 9.1°C · 8.5 mm rain
- Dali in DecemberChina · 51 kmHigh 14.8°C · Low 6.4°C · 13 mm rain
- Dali Old Town in DecemberChina · 61 kmHigh 14.1°C · Low 6.4°C · 13 mm rain
- Chuxiong in DecemberChina · 96 kmHigh 16.1°C · Low 6.3°C · 16 mm rain
- Jianshui in DecemberChina · 139 kmHigh 14.8°C · Low 5.8°C · 45 mm rain
- Baoshan (Yunnan), China in DecemberChina · 157 kmHigh 16.2°C · Low 5.8°C · 16 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 Yunnanyi) is explained once on the Yunnanyi year overview and on the Sources, method and limits page.