Weather on St. Lucia in May

Temperatures are on the rise during the month of May on St. Lucia. Rainfall increases during the month but still remains relatively low, although an afternoon shower is often a welcome break from the hot summer sun.

Typical Weather in May

Temperatures on St. Lucia during May generally vary between an average high during the day of 86.0 degrees and an average low at night of 80.0 degrees


St. Lucia in May: Key Facts
Monthly Averages
High Low Rainfall
No. of Days
with Rain
86.0° F 80.0° F N.A. 16.0

During the early morning hours of an average May day on St. Lucia, you can expect the temperature will be in the vicinity of 81.3 degrees. The temperature will rise over the course of the typical May day, reaching somewhere around 85.3 degrees by early afternoon. By the early evening hours in May the temperature will generally fall to somewhere in the vicinity of 79.5 degrees. Temperatures on St. Lucia average around 82.9 degrees during May.


May Temperatures on St. Lucia by Time of Day
Early Morning Late Morning Early Afternoon Late Afternoon Early Evening Overall
81.3° F 84.9° F 85.3° F 82.5° F 79.5° F 82.9° F



Rain is least likely to occur on St. Lucia during May around 8:00 PM , and it is most likely to occur around 8:00 AM . In St. Lucia during May, thunderstorms -- when they occur -- are most likely sometime around 8:00 AM .


May Rainfall on St. Lucia by Time of Day
  Percent Frequencies of Hourly Observations
Hour Rain
2:00 AM # #
5:00 AM # #
8:00 AM 25.9 % 0.5 %
11:00 AM 19 % 0 %
2:00 PM 17.9 % 0 %
5:00 PM 21.1 % 0.3 %
8:00 PM 16.9 % 0 %
11:00 PM # #
ALL 20.5 % 0.2 %


Help us improve! We welcome your corrections and suggestions.