Cool
Average highs are around 15°C, so pack for cooler days.
December verdict
Monterey, California, United States in December
Weather score27Poor
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 4.8h per day, so this is not one of the brighter months. Rainfall averages 78mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
15°C
Rain
78mm
Sun
4.8h
Sea
13°C
Weather score
27
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 78mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.8h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 13°C, so the water can feel cool.
Map
Weather map
Compare Monterey, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December15°C average high
December has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJune to October
This stretch sets the upper range for average daytime heat.
Rain
December78mm average rain
December is wetter than Monterey's yearly average, so flexible plans matter more.
Driest monthsMay to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4.8 hours average sun
December is one of Monterey's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December13°C average sea
December is close to Monterey's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJuly to November
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
December27 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 monthsMay to September
These months have the strongest weather score in the monthly averages.
