Saint Lucia monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Saint Lucia

Saint Lucia average temperature chart (Celsius) Saint Lucia average temperature chart (Fahrenheit)
Average monthly temperatures in Saint Lucia (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.9 15.1 16.2 18.5 22.4 26.3 29.3 29.6 27.3 23.6 19.7 16.4
°F 58.8 59.2 61.2 65.4 72.4 79.4 84.7 85.3 81.1 74.5 67.5 61.6

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Saint Lucia monthly rainfall chart (mm) Saint Lucia monthly rainfall chart (inches)
Average monthly rainfall in Saint Lucia (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 72 49 34 20 7 2 0 6 32 80 62 87
inches 2.8 1.9 1.3 0.8 0.3 0.1 0 0.2 1.3 3.1 2.5 3.4
Rainy days 12 10 8 6 3 1 0 1 4 9 10 13

Average annual rainfall in Saint Lucia: 499.933mm (196.8 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Saint Lucia

Saint Lucia average daily sunshine chart
Average daily sunshine Saint Lucia
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.5 6.4 7.5 8.5 10 11.2 12.2 11.3 9.2 7.7 6.6 5.4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Saint Lucia average minimum / maximum temperatures (Celsius) Saint Lucia average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Saint Lucia (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 9.4 9.4 10.1 11.9 15 18.5 21.1 22 20.4 17.3 14 11.1
Max °C 15.1 15.3 16.4 18.7 22.6 26.5 29.5 29.8 27.5 23.8 19.9 16.6
Min °F 48.8 48.8 50.1 53.4 59 65.3 70 71.6 68.6 63.1 57.1 51.9
Max °F 54 54.1 55.8 59.5 65.8 72.5 77.5 78.6 75 68.9 62.4 56.8

Sea temperature

The graph below shows the average sea temperature.

Saint Lucia average sea temperature chart (Celsius) Saint Lucia average sea temperature chart (Fahrenheit)
Average sea temperature around Saint Lucia in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.1 15.2 15.2 16.1 18.6 22.1 25.3 26.6 25.6 23.4 20.6 17.8
°F 61 59.4 59.4 61 65.5 71.8 77.5 79.9 78.1 74.2 69.1 64.1

Wind speed

The graph below shows the average wind speed.

Saint Lucia average winspeed by month (km/h) Saint Lucia average winspeed by month (mph)
Average wind speed in Saint Lucia (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 18 18 18 18 16 14 13 13 13 14 16 17
mph 11 11 11 11 10 9 8 8 8 9 10 11

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Saint Lucia relative humidity averages
Average relative humidity in Saint Lucia
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
79% 78% 77% 76% 74% 72% 70% 73% 76% 78% 77% 79%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Saint Lucia weather stats

Saint Lucia weather statistics
Hottest month: August 29.6°C 85.3°F
Driest month: July 0mm 0ins
Sunniest month: July 12.2hrs
Coldest month: January 14.9°C 58.8°F
Wettest month: December 87mm 3.4ins
Warmest sea: August 26.6°C 79.9°F
Map showing location of Saint Lucia (36.04306, 14.21722) Saint Lucia map pin © Google

Locations nearby

Top Malta locations