Your holiday weather, at a glance

Saint Lucia in March: where is it warmest?

In March, Saint Lucia (Castries) averages 28 °C by day.

All destinations in March, warmest first

Long-term averages for the month: daytime high, sea, sunshine and rainy days.

Place	Score	Air	Sea	Sun	Rain days
Saint Lucia (Castries)	90	28°	27°	9 h	10

Saint Lucia in March: where is it warmest?

The warmest places in March are Saint Lucia (Castries) (28 °C).

Saint Lucia in March: where is the sea warmest?

The sea is warmest at Saint Lucia (Castries) (27 °C).

Saint Lucia in March: where is the weather best?

The best holiday weather in March – warm, sunny and dry – is in Saint Lucia (Castries).

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences