Castries Climate by Month
The weather in Castries is characterized by a steady average temperature throughout the year.
It receives mid-range precipitation levels.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
The temperature in Castries remains steady throughout the year, providing a consistently very warm climate. Average daytime temperatures range from a very warm 31°C in September, the warmest time of the year, to a comfortable 29°C during cooler months like February. At night, temperatures typically average around 24°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Generally, Castries has a moderate amount of precipitation, averaging 948 mm of rainfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, October receives high rainfall, averaging 133 mm of precipitation, recorded across 18 rainy days. In contrast, the drier season, February brings less rainfall, with 36 mm over 13 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Year-round, Castries offers plenty of sunlight to enjoy during your holiday. The difference between the sunniest month, May, with 8.3 hours of daily sunshine, and October, the least sunny month, with 7.1 hours, is minimal.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is moderate throughout the year in Castries.
Relative humidity over the year
The best time of year to visit Castries 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:
September has an average maximum temperature of 31°C and is the hottest month of the year.
The coolest month is February with an average maximum temperature of 29°C.
October tops the wettest month list with 133 mm of rainfall.
February is the driest month with 36 mm of precipitation.
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.
