Temperature in Castries in September
Castries is a region in Saint Lucia. September is generally a very warm month with maximum daytime temperatures around 31°C and nighttime temperatures around 26°C in Castries.
What is the temperature of the different cities in Castries in September?
Explore the map below to discover average September temperatures at the top destinations in Castries. For a deeper dive, simply click on any destination dot.
Select a Month of Interest
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Lucia, check out our Castries's climate page.
Interested in more climate information?
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.