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St Lucia Weather and Climate: A Comprehensive Guide

St Lucia has relatively stable weather with warm temperatures. It also experiences much rainfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

The climate in St Lucia remains fairly constant, offering comfortable temperatures throughout the year. Average daytime temperatures reach a comfortable 29°C in February. In July, the coolest month of the year, temperatures drop to a comfortable 24°C.

At night, you can expect cooler temperatures, with averages dropping to around 18°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

St Lucia is known for its substantial rainfall, with annual precipitation reaching 1022 mm. St Lucia can be quite wet during February, receiving approximately 121 mm of precipitation over 11 rainy days.

In contrast August, experiences much drier conditions, with 46 mm of rainfall, spread across 7 rainy days. For more details, please visit our St Lucia Precipitation page.

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

Forecast for St Lucia

Wed   Jan 15
30°C | 20°C
S 8 m/s
2.3 mm
overcast and  chance of rain

overcast and chance of rain

Thu   Jan 16
27°C | 19°C
SW 6 m/s
5.3 mm
overcast and rain

overcast and rain

Fri   Jan 17
28°C | 21°C
E 4 m/s
0.8 mm
broken clouds and  chance of rain

broken clouds and chance of rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit St Lucia in South Africa

During the months of May, June, July, August, September, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in St Lucia?
    February has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in St Lucia?
    The coldest month is July with an average maximum temperature of 24°C.
  • Which is the wettest month in St Lucia?
    February tops the wettest month list with 121 mm of rainfall.
  • Which is the driest month in St Lucia?
    August is the driest month with 46 mm of precipitation.

  • 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.