Hot
Average highs reach 34°C, so days can feel very hot.
December verdict
El Castaño, Mexico in December
Weather score82Very good
Very good for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 6.3h per day, enough for a balanced month. Rainfall averages 11mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
34°C
Rain
11mm
Sun
6.3h
Sea
29°C
Weather score
82
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 11mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Warm sea
Sea temperatures average 29°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare El Castaño, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December34°C average high
December is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsFebruary to May
This stretch sets the upper range for average daytime heat.
Rain
December11mm average rain
December is one of El Castaño's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December6.3 hours average sun
December is brighter than El Castaño's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary to March and November
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December29°C average sea
December is below El Castaño's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaApril to November
Sea temperatures are usually near 30°C in this stretch, so swimming comfort is at its strongest.
Weather score
December82 weather score
December is one of El Castaño's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to March and November to December
These months have the strongest weather score in the monthly averages.
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