Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
December verdict
Cayman Islands in December
Weather score74Very good
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 4.7h per day, so this is not one of the brighter months. Rainfall averages 52mm, which is relatively low for holiday planning.
December weather
Monthly averages
Temp
29°C
Rain
52mm
Sun
4.7h
Sea
28°C
Weather score
74
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 52mm, which is relatively low for holiday planning.
Limited sun
Sunshine averages 4.7h per day, so this is not one of the brighter months.
Warm sea
Sea temperatures average 28°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Cayman Islands with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December29°C average high
December is on the cooler side of Cayman Islands' year, useful if you prefer less intense daytime heat.
Warmest monthsMay to October
This stretch sets the upper range for average daytime heat.
Rain
December52mm average rain
December sits on the drier side of Cayman Islands' year, which helps with sightseeing and transfers.
Driest monthsJanuary to April and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December4.7 hours average sun
December is one of Cayman Islands' cloudier months, so sunshine-led plans are less reliable.
Brightest monthsApril and July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December28°C average sea
December is below Cayman Islands' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
December74 weather score
December sits close to Cayman Islands' yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJanuary to April
These months have the strongest weather score in the monthly averages.
