Mild
Average highs are around 21°C, so days are mild rather than hot.
March verdict
Poor 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 177mm, so some wet days are possible.

Monthly averages
Temp
21°C
Rain
177mm
Sun
3.1h
Weather score
36
Poor
Mild
Average highs are around 21°C, so days are mild rather than hot.
Showers
Rainfall averages 177mm, so some wet days are possible.
Limited sun
Sunshine averages 3.1h per day, so this is not one of the brighter months.
Map
Compare Yilan, Taiwan with nearby places by weather score, rain, sun, temperature, and swim conditions.
March21°C average high
March 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.
March177mm average rain
March sits near Yilan's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March3.1 hours average sun
March 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.
March36 weather score
March 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.