Marigot Bay weather in August 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Marigot Bay in August. Check more long-term weather averages for Marigot Bay in August before you book your next holiday to St Lucia in 2025/2026.

• 30
  30°C max day temperature
• 8
  8 hours of sunshine per day
• 20
  20 days with some rainfall
• 24
  24°C min night temperature
• 13
  13 hours of daylight per day
• H
  High heat & humidity
• 263
  263 mm of monthly rainfall
• 11
  11+ (Extreme) UV index
• 29
  29°C sea temperature

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The August weather guide for St Lucia (Marigot Bay) 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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Marigot Bay August sunrise & sunset times

Browse the sunrise and sunset times for Marigot Bay in August 2025. Select a month to view Marigot Bay sunrise and sunset times for the next 12 months.

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