Cool
Average highs are around 13°C, so pack for cooler days.
December verdict
Ustica, Italy in December
Weather score23Poor
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 4h per day, so this is not one of the brighter months. Rainfall averages 84mm, so some wet days are possible.
December weather
Monthly averages
Temp
13°C
Rain
84mm
Sun
4h
Sea
17°C
Weather score
23
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 84mm, so some wet days are possible.
Limited sun
Sunshine averages 4h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Ustica, Italy with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December13°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
December84mm average rain
December is one of Ustica's wettest months, so rain is likely to be a major planning factor.
Driest monthsMay to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4 hours average sun
December is one of Ustica's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December17°C average sea
December is below Ustica's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 26°C in this stretch, so swimming comfort is at its strongest.
Weather score
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 monthsJune to September
These months have the strongest weather score in the monthly averages.
