Climate averages 1991–2020
Kaiyuan (Yunnan), China weather
in December.
A mild, fairly dry month: the coolest 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 mild month in Kaiyuan (Yunnan), China: daytime highs average 18.1°C and nights cool to about 8.4°C. By daytime temperature it is the coolest month of the year.
Expect about 15 mm of rain on roughly 2 days, which makes December a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 42 min on an average December day.
The nearest other city in this atlas is Mengzi (38 km away). In December its highs average 16.6°C, 1.5°C cooler than Kaiyuan (Yunnan), China, with 27 mm of rain.
Among the 884 cities listed in China, Kaiyuan (Yunnan), China ranks 111th of 884 for the warmest December highs and joint 386th of 884 for the driest December (rainfall, lowest first). The mean December high of those 884 cities is 7.5°C; Kaiyuan (Yunnan), China is 10.6°C warmer than that mean.
From December to January, average highs rise by 0.2°C to 18.3°C, and monthly rainfall rises from 15 mm to 18 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
Kaiyuan (Yunnan), China climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 18.3°C8.3°C | 8.3°C | 18 | 2.6 | 10.811 h |
| February | 21.2°C9.8°C | 9.8°C | 11 | 2.2 | 11.311 h |
| March | 25.2°C13.0°C | 13.0°C | 19 | 4.1 | 12.012 h |
| April | 27.6°C15.9°C | 15.9°C | 30 | 6.0 | 12.713 h |
| May | 28.2°C18.2°C | 18.2°C | 76 | 9.9 | 13.313 h |
| June | 27.8°C19.8°C | 19.8°C | 120 | 15.7 | 13.614 h |
| July | 26.7°C19.6°C | 19.6°C | 160 | 19.4 | 13.413 h |
| August | 26.4°C19.1°C | 19.1°C | 149 | 19.6 | 13.013 h |
| September | 25.4°C17.9°C | 17.9°C | 91 | 14.4 | 12.312 h |
| October | 23.3°C15.6°C | 15.6°C | 45 | 7.8 | 11.612 h |
| November | 21.0°C11.6°C | 11.6°C | 22 | 2.9 | 11.011 h |
| December, selected | 18.1°C8.4°C | 8.4°C | 15 | 2.3 | 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
- Mengzi in DecemberChina · 38 kmHigh 16.6°C · Low 8.5°C · 27 mm rain
- Gejiu in DecemberChina · 40 kmHigh 15.6°C · Low 7.8°C · 18 mm rain
- Miyang in DecemberChina · 80 kmHigh 16.4°C · Low 7.4°C · 16 mm rain
- Zhongshu in DecemberChina · 102 kmHigh 14.2°C · Low 5.5°C · 18 mm rain
- Wenshan City in DecemberChina · 103 kmHigh 16.6°C · Low 7.8°C · 23 mm rain
- Yuxi in DecemberChina · 106 kmHigh 16.2°C · Low 7.5°C · 20 mm rain
- Haikou, China in DecemberChina · 141 kmHigh 13.9°C · Low 6.7°C · 16 mm rain
- Lào Cai in DecemberVietnam · 151 kmHigh 20.0°C · Low 13.2°C · 92 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 Kaiyuan) is explained once on the Kaiyuan (Yunnan), China year overview and on the Sources, method and limits page.