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

Monthly 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
January, like December, in Castries City, Saint Lucia, is another warm winter month, with temperature in the range of an average low of 22°C (71.6°F) and an average high of 28°C (82.4°F). January through March and December, with an average high-temperature of 28°C (82.4°F), are the coldest months. In Castries City, during 17 rainfall days, 137mm (5.4") of precipitation is typically accumulated. Weather in January »
February, the last month of the winter, in Castries City, is also a moderately hot month, with average temperature fluctuating between 22°C (71.6°F) and 28°C (82.4°F). The coldest months are January through March and December, with an average high-temperature of 28°C (82.4°F). Weather in February »

The first month of the spring, March, is still a warm month in Castries City, Saint Lucia, with average temperature ranging between max 28°C (82.4°F) and min 22°C (71.6°F). The coldest months are January through March and December, with an average high-temperature of 28°C (82.4°F). Weather in March »

April, like March, in Castries City, Saint Lucia, is another warm spring month, with average temperature fluctuating between 23°C (73.4°F) and 29°C (84.2°F). In Castries City, the average high-temperature is relatively the same as in March - a still warm 29°C (84.2°F). Weather in April »

The last month of the spring, May, is a hot month in Castries City, Saint Lucia, with temperature in the range of an average high of 30°C (86°F) and an average low of 24°C (75.2°F). May through October, with an average high-temperature of 30°C (86°F), are the warmest months. Weather in May »

The first month of the summer, June, is still a hot month in Castries City, Saint Lucia, with average temperature varying between 30°C (86°F) and 24°C (75.2°F). May through October, with an average high-temperature of 30°C (86°F), are the warmest months. Weather in June »

July, like June, is a hot summer month in Castries City, Saint Lucia, with temperature in the range of an average low of 24°C (75.2°F) and an average high of 30°C (86°F). May through October, with an average high-temperature of 30°C (86°F), are the warmest months. Weather in July »

August, the last month of the summer, in Castries City, is another tropical month, with average temperature varying between 30°C (86°F) and 24°C (75.2°F). May through October, with an average high-temperature of 30°C (86°F), are the warmest months. Weather in August »

The first month of the autumn, September, is still a tropical month in Castries City, Saint Lucia, with average temperature varying between 30°C (86°F) and 24°C (75.2°F). The warmest months are May through October, with an average high-temperature of 30°C (86°F). Weather in September »

October, the same as September, in Castries City, Saint Lucia, is another tropical autumn month, with average temperature ranging between min 23°C (73.4°F) and max 30°C (86°F). The warmest months are May through October, with an average high-temperature of 30°C (86°F). Weather in October »

The last month of the autumn, November, is another warm month in Castries City, Saint Lucia, with temperature in the range of an average low of 23°C (73.4°F) and an average high of 29°C (84.2°F). In November, the average high-temperature is practically the same as in October - a moderately hot 29°C (84.2°F). Weather in November »

The first month of the winter, December, is still a warm month in Castries City, Saint Lucia, with average temperature varying between 22°C (71.6°F) and 28°C (82.4°F). The coldest months are January through March and December, with an average high-temperature of 28°C (82.4°F). Weather in December »

What are the coldest months in Castries City?

The coldest months are January through March and December, with an average high-temperature of 28°C (82.4°F).

How many days does it rain in Castries City?

Throughout the year, there are 208 rainfall days, and 2377mm (93.6") of precipitation is accumulated.

What are the months with the most sunshine in Castries City?

January through September, November and December, with an average of 8h of sunshine, are months with the most sunshine.

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

February and March, with an average sea temperature of 26°C (78.8°F), are months with the coldest seawater.

What is the driest month in Castries City?

March is the month with the least rainfall. Rain falls for 13 days and accumulates 99mm (3.9") of precipitation.

What are the months with the highest UV index in Castries City?

Months with the highest UV index in Castries City are March through September, with an average maximum UV index of 12.

What is the warmest month in Castries City?

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

When are the longest days in Castries City?

June and July, with an average of 12.9h of daylight, are months with the longest days.

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

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

What is the wettest month in Castries City?

October is the month with the most rainfall in Castries City, Saint Lucia. Rain falls for 18 days and accumulates 303mm (11.9") of precipitation.

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

The month with the least sunshine in Castries City, Saint Lucia, is October, with an average of 7h of sunshine.

What is the month with the shortest days in Castries City?

With an average of 11.3h of daylight, December has the shortest days of the year in Castries City, Saint Lucia.

When is the lowest UV index in Castries City?

December is the month with the lowest UV index in Castries City, Saint Lucia, with an average maximum UV index of 8.
Average temperature - Castries City, Saint Lucia

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).

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 - Castries City, Saint Lucia

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

Average rainfall days - Castries City, Saint Lucia
Average sea temperature - Castries City, Saint Lucia

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 / Average sunshine - Castries City, Saint Lucia

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

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 - Castries City, Saint Lucia

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).