September Rainfall and Precipitation in Saint Lucia

Monthly rainfall totals, rainy days and the driest cities across Saint Lucia in September.

Saint Lucia experiences precipitation in September ranging from high in Castries (122 mm (4.8 in)) to high in Mon Repos (147 mm (5.8 in)).

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For a detailed overview over the year and the best time to visit Saint Lucia, check out our Saint Lucia's climate page.

See also: the Saint Lucia weather by month.

Best Places to Visit in Saint Lucia in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Saint Lucia.

Conditions Temperatures Precipitation
Monthly precipitation 0 mm (0 in) dry → 150 mm (5.9 in) wet

Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.

See all September weather averages, cities and regions in Saint Lucia

Saint Lucia precipitation in September: frequently asked questions

How much rainfall does Saint Lucia receive in September?

In September, Gros Islet typically experiences high rainfall, averaging about 138 mm (5.4 in). This translates to a mix of wet and dry days throughout the month.

How many days does it rain in Saint Lucia in September?

On average, Gros Islet has about 24 days days of rain in September.

Is September part of the rainy season in Saint Lucia?

September is generally a drier month for Saint Lucia, falling outside the main rainy season.

What is the wettest city in September in Saint Lucia?

Mon Repos is the wettest city in Saint Lucia in September according to our database, with average rainfall of around 147 mm (5.8 in).

What is the driest city in September in Saint Lucia?

In our records, Castries stands out as the driest city in Saint Lucia for September, averaging just 122 mm (4.8 in).

Interested in more climate information?

We have much more information about the climate in Saint Lucia.

Weather and climate has detailed information for every country in the world. Are you going to Saint Lucia? Get detailed historical weather averages for many cities in Saint Lucia.

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.