Cool
Average highs are around 20°C, so pack for cooler days.
December verdict
Mixed for holiday weather
Average highs are around 20°C, so pack for cooler days. Sunshine averages 6.3h per day, enough for a balanced month. Rainfall averages 12mm, which is relatively low for holiday planning.

Monthly averages
Temp
20°C
Rain
12mm
Sun
6.3h
Weather score
49
Mixed
Cool
Average highs are around 20°C, so pack for cooler days.
Drier
Rainfall averages 12mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Map
Compare Zacatecas, Zacatecas, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
December20°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsApril to June
This stretch sets the upper range for average daytime heat.
December12mm average rain
December is one of Zacatecas' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to May and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December6.3 hours average sun
December is one of Zacatecas' cloudier months, so sunshine-led plans are less reliable.
Brightest monthsFebruary to May
This stretch has the strongest sunshine in the monthly averages.
December49 weather score
December is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsApril to May
These months have the strongest weather score in the monthly averages.