Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
March verdict
Grand Cayman, Cayman Islands in March
Weather score80Very good
Very good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 8.4h per day, so bright days are a strong part of the month. Rainfall averages 32mm, which is relatively low for holiday planning.
March weather
Monthly averages
Temp
30°C
Rain
32mm
Sun
8.4h
Sea
27°C
Weather score
80
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 32mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.4h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 27°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Grand Cayman, Cayman Islands with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
March30°C average high
March is on the cooler side of Grand Cayman's year, useful if you prefer less intense daytime heat.
Warmest monthsMay to October
This stretch sets the upper range for average daytime heat.
Rain
March32mm average rain
March is one of Grand Cayman's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to April and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
March8.4 hours average sun
March sits close to Grand Cayman's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMarch to April and July
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
March27°C average sea
March is one of the cooler sea months locally, though the water still averages warm enough for most swimmers.
Warmest seaJune to October
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
March80 weather score
March is one of Grand Cayman's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to April and December
These months have the strongest weather score in the monthly averages.
