Climate averages 1991–2020

Miaoli weather
in December.

A mild, 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.

Average high 19.6°C Daytime mean, December
Average low 15.4°C Night-time mean, December
Rainfall 54 mm 7 days with ≥1 mm
Daylight 11 h Sunrise to sunset, per day
Every month in Miaoli · average highYear overview

December is a mild month in Miaoli: daytime highs average 19.6°C and nights cool to about 15.4°C. By daytime temperature it is the 10th warmest of the 12 months.

Expect about 54 mm of rain on roughly 7 days, which makes December a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 39 min on an average December day.

The nearest other city in this atlas is Toufen (16 km away). In December its highs average 19.6°C, about as warm as Miaoli, with 51 mm of rain.

Among the 28 cities listed in Taiwan, Miaoli ranks joint 15th of 28 for the warmest December highs and 9th of 28 for the driest December (rainfall, lowest first). The mean December high of those 28 cities is 20.5°C; Miaoli is 0.9°C cooler than that mean.

From December to January, average highs fall by 1.8°C to 17.8°C, and monthly rainfall rises from 54 mm to 69 mm.

The annual picture

December in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Miaoli climate table

1991–2020
Monthly climate averages for Miaoli, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 17.8°C13.6°C13.6°C698.910.811 h
February 18.5°C13.9°C13.9°C9810.511.311 h
March 20.9°C16.0°C16.0°C13312.512.012 h
April 24.2°C19.4°C19.4°C14813.512.713 h
May 26.8°C22.4°C22.4°C21116.313.313 h
June 28.5°C24.8°C24.8°C25018.613.614 h
July 29.3°C25.5°C25.5°C23718.413.514 h
August 28.7°C25.0°C25.0°C32921.913.013 h
September 27.7°C23.9°C23.9°C18213.912.312 h
October 25.5°C21.7°C21.7°C705.111.612 h
November 23.2°C19.0°C19.0°C495.311.011 h
December, selected 19.6°C15.4°C15.4°C546.810.611 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

Distance from Miaoli

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 limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Miaoli) is explained once on the Miaoli year overview and on the Sources, method and limits page.