September · Saint Lucia
Best time to visit Castries in SeptemberWeather, crowds & prices
September score
8.9/10
Ranked #10 of 12 months
- Avg temp
- 30°C
- Rainfall
- 73 mm
- Humidity
- 77%
- Sunny days
- 27
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Castries scores 8.9/10 for beach and coastal travel - ranked #10 of 12. Expect around 30°C, 73 mm of rain, and roughly 27 sunny days this month.
Castries rewards coastal days in Saint Lucia most clearly through the drier months outside peak monsoon.
Frequently asked
- What is the weather like in Castries in September?
- In September, Castries averages 30°C, 73 mm of rain, and about 27 sunny days. Its climate-comfort score is 8.9/10.
- Is September a good time to visit Castries?
- September earns a 8.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Castries in September?
- Expect about 73 mm of rain in September. Average humidity is 77% and there are about 27 sunny days.
Curated in Castries
Tickets & experiences
Things to do in Castries
Castries, Saint Lucia. Live activities and tours from GetYourGuide, matched to this destination.