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Castries Weather in October
October in Castries brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 26°C (79°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Castries in October
Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Historically, the month has about 18 days of rain, averaging 133 mm (5.2 in) in total. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Castries in October
October in Castries brings typical temperatures with highs around 31°C (88°F) and lows of 26°C (79°F). Mornings and evenings are often more comfortable than the peak afternoon hours. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Castries in October
Expect sunny days throughout the month, with an estimated 214 hours of sunshine. This makes it a pleasant time to visit Castries.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and February typically offer the best weather for Castries.
Castries Temperature in October
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Chance of Rain
60%
Precipitation
133 mm (5.2 in)
Rainy days
18 days
Humidity
81% *
Sunshine
214 hours *
Percentage Sunshine
*
* Data from: Saint Lucia, Saint Lucia (4 KM, 2 Miles).
Castries Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castries - and find the best time to visit.
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Castries typically stay consistent throughout October, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in October
Historical weather records for Castries in October
Browse day-by-day weather records for Castries spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Castries historical weather extremes in October
According to our 35 years of weather records for Castries, the following extremes were recorded between 1990 and 2025.
- On October 1, 2023, temperatures climbed to 39°C (102°F), marking the warmest October day on record.
- The lowest daytime temperature in October was 26°C (79°F), recorded on October 11, 2008.
- The lowest overnight temperature recorded in October was 20°C (68°F) (October 13, 1992).
Best Places in Saint Lucia in October
Find out more about the weather in Saint Lucia and which places have the best travel conditions in this month. See all of Saint Lucia in October →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Castries in October
Warm temperatures in October make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Castries in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Castries 3-Day Forecast
More climate data for Castries
Temperature Rainfall Sunshine Humidity
See the full Castries climate overview or explore weather in Saint Lucia.
Popular in October
Where to go in October - average daytime high across popular destinations.
Marigot Bay
31°C (88°F) Laborie30°C (86°F) Rodney Bay Village30°C (86°F) Cap Estate
30°C (86°F) Soufrière30°C (86°F) Castries31°C (88°F) Gros Islet30°C (86°F) Vieux Fort30°C (86°F) Bucket list
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