St Lucia weather in September 2024

Expect 24°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St Lucia in September. Check more long-term weather averages for St Lucia in September before you book your next holiday to South Africa in 2024/2025.

  • 24°C maximum daytime temperature in September in St Lucia24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in September in St Lucia9
    9 days with some rainfall
  • 16°C minimum night-time temperature in September in St Lucia16
    16°C min night temperature
  • 12 hours of daylight per day in September in St Lucia12
    12 hours of daylight per day
  • No heat & humidity in September in St Lucia0
    No heat & humidity
  • 87 mm monthly rainfall in September in St Lucia87
    87 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in St Lucia8
    8 (Very High) UV index
  • 22°C sea temperature in September in St Lucia22
    22°C sea temperature

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