Mild
Average highs are around 21°C, so days are mild rather than hot.
December verdict
Yilan, Taiwan in December
Weather score41Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 3.1h per day, so this is not one of the brighter months. Rainfall averages 99mm, so some wet days are possible.
December weather
Monthly averages
Temp
21°C
Rain
99mm
Sun
3.1h
Weather score
41
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 99mm, so some wet days are possible.
Limited sun
Sunshine averages 3.1h per day, so this is not one of the brighter months.
Map
Weather map
Compare Yilan, Taiwan with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December21°C average high
December is on the cooler side of Yilan's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December99mm average rain
December is one of Yilan's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December3.1 hours average sun
December is one of Yilan's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJuly to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
December41 weather score
December scores below Yilan's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly and September to October
These months have the strongest weather score in the monthly averages.
