Cool
Average highs are around 9°C, so pack for cooler days.
December verdict
Grand Canyon, United States in December
Weather score43Mixed
Mixed for holiday weather
Average highs are around 9°C, so pack for cooler days. Sunshine averages 6.8h per day, enough for a balanced month. Rainfall averages 26mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
9°C
Rain
26mm
Sun
6.8h
Weather score
43
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 26mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.8h per day, enough for a balanced month.
Map
Weather map
Compare Grand Canyon, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December9°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December26mm average rain
December is close to Grand Canyon's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
December6.8 hours average sun
December is one of Grand Canyon's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to June
This stretch has the strongest sunshine in the monthly averages.
Weather score
December43 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 monthsJune to August
These months have the strongest weather score in the monthly averages.
Hotels near Grand Canyon, United States
Marriott
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