- Save on holidays in 2023/2024 with latest deals & discounts
- Offers include free upgrades & extras + low deposits
- Browse the best deals or search by destination & date
St Lucia weather in September 2023
- 86°F max day temperature
86
- 8 hours of sunshine per day
- 25 days with some rainfall
25
- 75°F min night temperature
75
- 12 hours of daylight per day
12
- Very High heat & humidity
VH
- 8.8 inches of monthly rainfall
8.8
- 11+ (Extreme) UV index
11
- 84°F sea temperature
84
Below are average maximum temperatures at popular destinations in St Lucia in September. Select a destination to see more weather parameters.
Recommended for St Lucia
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.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C) | Imperial (°F)
More about St Lucia
How hot is it in St Lucia in September?
Daytime temperatures usually reach 86°F in Castries, St Lucia in September with very high heat and humidity, falling to 75°F at night.
How sunny is it in St Lucia in September?
There are normally 8 hours of bright sunshine each day in Castries, St Lucia in September - that's 62% of daylight hours.
How warm is the sea around St Lucia in September?
The average sea temperature around Castries, St Lucia in September is 84°F.
Does it rain in St Lucia in September?
There are usually 25 days with some rain in Castries, St Lucia in September and the average monthly rainfall is 8.8 inches.
What is the chance of a hurricane in St Lucia in September?
On average 1.1 days in September in Castries, St Lucia are likely to be affected by the passage of one or more tropical storms.
St Lucia September sunrise & sunset times
Browse the sunrise and sunset times for St Lucia in September 2023. Select a month to view St Lucia sunrise and sunset times for the next 12 months. The St Lucia sunrise and sunset times shown below are for Castries.
JanFebMarAprMayJunJulAugSepOctNovDec
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 |
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- British Airways
- easyJet holidays
- Love Holidays