Weather in St Lucia in September 2019

  • 24°C maximum daytime temperature in September in St Lucia24
    24°C max day temperature
  • 7 hours of sunshine per day (62% of daylight hours) in September in St Lucia7
    7 hours of sunshine per day
  • 9 days with some rainfall in September in St Lucia9
    9 days with some rainfall
  • 16°C minimum night-time temperature in September in St Lucia16
    16°C min night temperature
  • 12 hours of daylight per day in September in St Lucia12
    12 hours of daylight per day
  • No heat & humidity in September in St Lucia0
    No heat & humidity
  • 87 mm monthly rainfall in September in St Lucia87
    87 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in St Lucia8
    8 (Very High) UV index
  • 22°C sea temperature in September in St Lucia22
    22°C sea temperature

Going to St Lucia? Find the best month to visit St Lucia based on the weather.

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Expect 24°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in St Lucia in September. Check more long-term weather averages for St Lucia in September before you book your next holiday to South Africa in 2019/2020.

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More about St Lucia

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The September weather guide for St Lucia, South Africa 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)

Guide to St Lucia weather in September

The average maximum daytime temperature in St Lucia in September is a warm 24°C (75°F). The average night-time temperature is usually a comfortable 16°C (61°F). There are usually 7 hours of bright sunshine each day, which represents 62% of the 12 hours of daylight.

Expect 87mm (3.4 inches) of rainfall across the whole of September with 9 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

The average sea temperature in and around St Lucia in September is 22°C (72°F).

St Lucia sunrise & sunset times for September 2019

Browse the sunrise & sunset times for St Lucia in September 2019. Select a month to view St Lucia sunrise & sunset times for the next twelve months.


Date Sunrise times Sunset times
Sunday, 1st September 2019 06:05 17:36
Monday, 2nd September 2019 06:04 17:37
Tuesday, 3rd September 2019 06:03 17:37
Wednesday, 4th September 2019 06:02 17:38
Thursday, 5th September 2019 06:00 17:38
Friday, 6th September 2019 05:59 17:39
Saturday, 7th September 2019 05:58 17:39
Sunday, 8th September 2019 05:57 17:40
Monday, 9th September 2019 05:56 17:40
Tuesday, 10th September 2019 05:55 17:41
Wednesday, 11th September 2019 05:54 17:41
Thursday, 12th September 2019 05:52 17:42
Friday, 13th September 2019 05:51 17:42
Saturday, 14th September 2019 05:50 17:43
Sunday, 15th September 2019 05:49 17:43
Monday, 16th September 2019 05:48 17:43
Tuesday, 17th September 2019 05:46 17:44
Wednesday, 18th September 2019 05:45 17:44
Thursday, 19th September 2019 05:44 17:45
Friday, 20th September 2019 05:43 17:45
Saturday, 21st September 2019 05:42 17:46
Sunday, 22nd September 2019 05:40 17:46
Monday, 23rd September 2019 05:39 17:47
Tuesday, 24th September 2019 05:38 17:47
Wednesday, 25th September 2019 05:37 17:48
Thursday, 26th September 2019 05:36 17:48
Friday, 27th September 2019 05:35 17:49
Saturday, 28th September 2019 05:33 17:49
Sunday, 29th September 2019 05:32 17:50
Monday, 30th September 2019 05:31 17:50
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Below are average maximum temperatures at popular destinations in South Africa in September. Select a destination to see more weather parameters.

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