ClimateForecastDecemberJanuary >>

Saint Lucia Climate by Month

The weather in Saint Lucia is characterized by a steady average temperature throughout the year. It maintains moderate precipitation patterns. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

With minimal seasonal shifts, Saint Lucia experiences a constant climate year-round. Typically, daytime temperatures range from a very warm 31°C in September to a comfortable 29°C in the coolest month, February. Nights are cooler, with temperatures generally dropping to 24°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Generally, Saint Lucia receives mid-range precipitation levels, with 969 mm annually. The climate in Saint Lucia shows significant variation throughout the year. Expect high rainfall in October, with an average of 137 mm of precipitation over 18 rainy days.

In contrast, February offers drier and sunnier days, with around 36 mm of rainfall over 13 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

If you're planning a trip to Saint Lucia, rest assured that sunshine is an important factor. With peak sunshine in May at 8.3 hours daily and a slight dip to 7.1 hours in October, it maintains a sunny destination year-round.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Saint Lucia in Saint Lucia

The best time to visit is during the drier months: January, February, March and April.

Other facts from our historical weather data:
  • Which is the hottest month in Saint Lucia?
    September has an average maximum temperature of 31°C and is the hottest month of the year.
  • Which is the coolest month in Saint Lucia?
    The coolest month is February with an average maximum temperature of 29°C.
  • Which is the wettest month in Saint Lucia?
    October tops the wettest month list with 137 mm of rainfall.
  • Which is the driest month in Saint Lucia?
    February is the driest month with 36 mm of precipitation.
  • Which is the sunniest month in Saint Lucia?
    May is the sunniest month with an average of 249 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Saint Lucia

    Sun   Dec 15
    30°C | 25°C
    E 14 km/h
    2.1 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Mon   Dec 16
    30°C | 25°C
    E 14 km/h
    1.6 mm
    broken clouds and  chance of rain

    broken clouds and chance of rain

    Tue   Dec 17
    30°C | 24°C
    E 14 km/h
    1.8 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain