St Lucia weather in March 2025

Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Lucia in March. Check more long-term weather averages for St Lucia in March before you book your next holiday to South Africa in 2025/2026.

  • 29°C maximum daytime temperature in March in St Lucia29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in March in St Lucia11
    11 days with some rainfall
  • 21°C minimum night-time temperature in March in St Lucia21
    21°C min night temperature
  • 12 hours of daylight per day in March in St Lucia12
    12 hours of daylight per day
  • Moderate heat & humidity in March in St LuciaM
    Moderate heat & humidity
  • 130 mm monthly rainfall in March in St Lucia130
    130 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in March in St Lucia10
    10 (Very High) UV index
  • 27°C sea temperature in March in St Lucia27
    27°C sea temperature

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The March weather guide for South Africa (St Lucia) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about South Africa

How hot is it in St Lucia in March?

Daytime temperatures usually reach 29°C in St Lucia in March with moderate heat and humidity, falling to 21°C at night.

How sunny is it in St Lucia in March?

There are normally 8 hours of bright sunshine each day in St Lucia in March - that's 64% of daylight hours.

How warm is the sea around St Lucia in March?

The average sea temperature around St Lucia in March is 27°C.

Does it rain in St Lucia in March?

There are usually 11 days with some rain in St Lucia in March and the average monthly rainfall is 130mm.

St Lucia March sunrise & sunset times

Browse the sunrise and sunset times for St Lucia in March 2025. Select a month to view St Lucia sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 05:43 18:22
Sunday, 16th March 2025 05:52 18:06
Monday, 31st March 2025 06:00 17:49

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