Castries City
Saint Lucia
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Castries City, Saint Lucia

A high scenic panorama of the beautiful city of Castries, Saint Lucia
A high scenic panorama of the beautiful city of Castries, Saint Lucia
October, like September, is another tropical autumn month in Castries City, Saint Lucia, with average temperature varying between 23°C (73.4°F) and 30°C (86°F).

Temperature

The warmest months are May through October, with an average high-temperature of 30°C (86°F).

Rainfall

The month with the most rainfall is October when the rain falls for 18 days and typically aggregates up to 303mm (11.93") of precipitation.

Sea temperature

Months with the warmest seawater are September and October, with an average sea temperature of 29°C (84.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day is 11.8h.

Sunshine

October has the least sunshine of the year, with an average of 7h of sunshine.

UV index

In October, the average daily maximum UV index in Castries City is 11. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 11 in October interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What are the warmest months in Castries City?

Warmest months are May through October, with an average high-temperature of 30°C (86°F).

What is the temperature in October in Castries City?

In Castries City, in October, the average high-temperature is 30°C (86°F), and the average low-temperature is 23°C (73.4°F).

How many days does it rain in October in Castries City?

In Castries City, in October, during 18 rainfall days, 303mm (11.93") of precipitation is typically accumulated.

What is the rainiest month in Castries City?

The month with the most rainfall in Castries City, Saint Lucia, is October when the rain falls for 18 days and typically aggregates up to 303mm (11.93") of precipitation.

What are the months with the warmest sea water in Castries City?

Months with the warmest seawater in Castries City are September and October, with an average sea temperature of 29°C (84.2°F).

What is the water temperature in October in Castries City?

In Castries City, Saint Lucia, in October, the average water temperature is 29°C (84.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Castries City have in October?

The average length of the day in October in Castries City, Saint Lucia, is 11.8h.

What is the month with the least sunshine in Castries City?

With an average of 7h of sunshine, October has the least sunshine of the year.

How long on average sun shines in October in Castries City?

In October, the average sunshine in Castries City is 7h.

How high is the UV index in October in Castries City?

In Castries City, Saint Lucia, the average daily maximum UV index in October is 11. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unprotected exposure to the UV radiation.
Average temperature in October - Castries City, Saint Lucia
  • Average high temperature in October: 30°C

Warmest months (with the highest average high temperature) are May, June, July, August, September and October (30°C).
Months with the lowest average high temperature are January, February, March and December (28°C).

  • Average low temperature in October: 23°C

Months with the highest average low temperature are May, June, July, August and September (24°C).
Coldest months (with the lowest average low temperature) are January, February, March and December (22°C).

Average rainfall in October - Castries City, Saint Lucia
  • Average rainfall in October: 303mm

The wettest month (with the highest rainfall) is October (303mm).
The driest month (with the lowest rainfall) is March (99mm).

Average rainfall days in October - Castries City, Saint Lucia
  • Average rainfall days in October: 18 days

The month with the highest number of rainy days is September (24 days).
The month with the lowest number of rainy days is April (11 days).

Average sea temperature in October - Castries City, Saint Lucia
  • Average sea temperature in October: 29°C

Best months for swimming (with the highest average sea temperature) are September and October (29°C).
Coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in October / Average sunshine in October - Castries City, Saint Lucia
  • Average daylight in October: 11.8h

Months with the longest days are June and July (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in October: 7h

Months with most sunshine are January, February, March, April, May, June, July, August, September, November and December (Average sunshine: 8h).
The month with least sunshine is October (Average sunshine: 7h).

Average UV index in October - Castries City, Saint Lucia
  • Average UV index in October: 11

Months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).