Cool
Average highs are around 4°C, so pack for cooler days.
December verdict
Poor for holiday weather
Average highs are around 4°C, so pack for cooler days. Sunshine averages 2.7h per day, so this is not one of the brighter months. Rainfall averages 87mm, so some wet days are possible.
Monthly averages
Temp
4°C
Rain
87mm
Sun
2.7h
Weather score
23
Poor
Cool
Average highs are around 4°C, so pack for cooler days.
Showers
Rainfall averages 87mm, so some wet days are possible.
Limited sun
Sunshine averages 2.7h per day, so this is not one of the brighter months.
Map
Compare Grenoble, France with nearby places by weather score, rain, sun, temperature, and swim conditions.
December4°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.
December87mm average rain
December sits near Grenoble's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to October and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December2.7 hours average sun
December is one of Grenoble's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
December23 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 monthsJuly to August
These months have the strongest weather score in the monthly averages.
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