Cool
Average highs are around 15°C, so pack for cooler days.
December verdict
Syros, Greece in December
Weather score30Poor
Poor for holiday weather
Average highs are around 15°C, so pack for cooler days. Sunshine averages 4.2h per day, so this is not one of the brighter months. Rainfall averages 91mm, so some wet days are possible.
December weather
Monthly averages
Temp
15°C
Rain
91mm
Sun
4.2h
Sea
17°C
Weather score
30
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 91mm, so some wet days are possible.
Limited sun
Sunshine averages 4.2h 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 Syros, Greece with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December15°C average high
December is on the cooler side of Syros' year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
December91mm average rain
December is one of Syros' wettest months, so rain is likely to be a major planning factor.
Driest monthsApril to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4.2 hours average sun
December is one of Syros' 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 Syros' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to September
Sea temperatures are usually near 24°C in this stretch, so swimming comfort is at its strongest.
Weather score
December30 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.
Hotels near Syros, Greece
Marriott
Odera, Tinos, Autograph CollectionTinos, Greece
Rocabella Mykonos Hotel, a Member of Design Hotels™Mykonos, South Aegean, Greece
O by Myconian, Mykonos, a Member of Design Hotels™Mykonos, Greece
Mykonos Theoxenia, a Member of Design HotelsMykonos, South Aegean, Greece
Santa Marina, a Luxury Collection Resort, MykonosMykonos, Greece
Myconian Kyma, a Member of Design Hotels™Mykonos, Greece