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Castries weather in September 2023
- 3030°C max day temperature
- 2525 days with some rainfall
- 2424°C min night temperature
- 1212 hours of daylight per day
- VHVery High heat & humidity
- 224224 mm of monthly rainfall
- 1111+ (Extreme) UV index
- 2929°C sea temperature
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The September weather guide for St Lucia (Castries) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about St Lucia
How hot is it in Castries in September?
Daytime temperatures usually reach 30°C in Castries in September with very high heat and humidity, falling to 24°C at night.
How sunny is it in Castries in September?
There are normally 8 hours of bright sunshine each day in Castries in September - that's 62% of daylight hours.
How warm is the sea around Castries in September?
The average sea temperature around Castries in September is 29°C.
Does it rain in Castries in September?
There are usually 25 days with some rain in Castries in September and the average monthly rainfall is 224mm.
What is the chance of a hurricane in Castries in September?
On average 1.1 days in September in Castries are likely to be affected by the passage of one or more tropical storms.
Castries September sunrise & sunset times
Browse the sunrise and sunset times for Castries in September 2023. Select a month to view Castries sunrise and sunset times for the next 12 months.
|Date||Sunrise times||Sunset times|
|Friday, 1st September 2023||05:52||18:16|
|Friday, 15th September 2023||05:53||18:05|
|Saturday, 30th September 2023||05:53||17:54|
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