Castries weather in March 2025

Expect 84°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Castries in March. Check more long-term weather averages for Castries in March before you book your next holiday to St Lucia in 2025/2026.

  • 84°F maximum daytime temperature in March in Castries84
    84°F max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in March in Castries13
    13 days with some rainfall
  • 72°F minimum night-time temperature in March in Castries72
    72°F min night temperature
  • 12 hours of daylight per day in March in Castries12
    12 hours of daylight per day
  • Moderate heat & humidity in March in CastriesM
    Moderate heat & humidity
  • 3.0 inches monthly rainfall in March in Castries3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in Castries11
    11+ (Extreme) UV index
  • 81°F sea temperature in March in Castries81
    81°F sea temperature

More about Castries

Castries by month

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The March weather guide for St Lucia (Castries) 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)  |  Imperial (°F)

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More about St Lucia

How hot is it in Castries in March?

Daytime temperatures usually reach 84°F in Castries in March with moderate heat and humidity, falling to 72°F at night.

How sunny is it in Castries in March?

There are normally 8 hours of bright sunshine each day in Castries in March - that's 69% of daylight hours.

How warm is the sea around Castries in March?

The average sea temperature around Castries in March is 81°F.

Does it rain in Castries in March?

There are usually 13 days with some rain in Castries in March and the average monthly rainfall is 3.0 inches.

Castries March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:20 18:12
Sunday, 16th March 2025 06:11 18:14
Monday, 31st March 2025 06:00 18:16

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