Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
March verdict
Saint Lucia in March
Weather score75Very good
Very good for holiday weather
Average highs sit around 29°C, giving warm days by monthly-average standards. Sunshine averages 8.3h per day, so bright days are a strong part of the month. Rainfall averages 76mm, which is relatively low for holiday planning.
March weather
Monthly averages
Temp
29°C
Rain
76mm
Sun
8.3h
Sea
27°C
Weather score
75
Very good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 76mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.3h 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 Saint Lucia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
March29°C average high
March is close to Saint Lucia's usual daytime heat, with little temperature swing across the year.
Warmest monthsAll year
Daytime heat stays consistently warm through the year.
Rain
March76mm average rain
March is one of Saint Lucia's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to May
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
March8.3 hours average sun
March is part of a consistently bright year-round pattern, so sunny days are a steady part of the climate.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
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 seaJuly to November
Sea temperatures are usually near 28°C in this stretch, so swimming comfort is at its strongest.
Weather score
March75 weather score
March is one of Saint Lucia's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to April
These months have the strongest weather score in the monthly averages.
