April weather forecast
Castries City, Saint Lucia

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The beautiful city of Castries, Saint Lucia
The beautiful city of Castries, Saint Lucia

Weather in April

The vibrant and sun-filled April brings noticeable changes to Castries City. There is a minor increase in rainfall, with the city recording 113mm (4.45") throughout the month. Along with the onset of warmer days, the city sees a rise in outdoor events and picnics. This month is ideal for touring the natural beauty of Castries City or walking along its beautiful beaches. It provides an excellent opportunity for residents and tourists to engage in water activities, thanks to a mild increase in both temperature and precipitation.

Temperature

Upon the onset of April, Castries City witnesses an average high-temperature of a still warm 29°C (84.2°F), showing a close resemblance to the prior month. In Castries City, April nights witness a steady temperature drop to a still warm 23°C (73.4°F).

Rainfall

In Castries City, during April, the rain falls for 11 days and regularly aggregates up to 113mm (4.45") of precipitation. Throughout the year, in Castries City, Saint Lucia, there are 208 rainfall days, and 2377mm (93.58") of precipitation is accumulated.

Sea temperature

In April, the average sea temperature is 27°C (80.6°F).
Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.

Daylight

The average length of the day in April in Castries City is 12h and 28min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:16. On the last day of April, in Castries City, sunrise is at 05:42 and sunset at 18:20 AST.

Sunshine

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

UV index

March through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 12 in April translates into the following recommendations:
Practice every precaution of necessity, unprotected skin and eyes might burn in minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. One must apply and reapply generously an SPF 30+ broad-spectrum sunscreen every two hours or after an outdoor workout or swim. Caution! The Sun's UV intensity grows with reflections off sand and water.
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Frequently asked questions

How hot does it get in Castries City in April?

The high-temperature, in April, in Castries City, is 29°C (84.2°F), while the low-temperature averages to 23°C (73.4°F).

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

In Castries City, Saint Lucia, in April, during 11 rainfall days, 113mm (4.45") of precipitation is typically accumulated.

What is the water temperature in April in Castries City?

In April, the average sea temperature is 27°C (80.6°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in April in Castries City?

In April, the average day length in Castries City is 12h and 28min.

What time are sunrise and sunset in April in Castries City?

On the first day of April in Castries City, Saint Lucia, sunrise is at 05:59 and sunset at 18:16. On the last day of the month, sunrise is at 05:42 and sunset at 18:20 AST.

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 in Castries City, Saint Lucia.

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

The average sunshine duration in April in Castries City is 8h.

What is the month with the highest UV index in Castries City?

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

What is the UV index reading in April in Castries City?

In April, the average daily maximum UV index in Castries City is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in April
Castries City, Saint Lucia

Average temperature in April - Castries City, Saint Lucia
  • Average high temperature in April: 29°C

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

  • Average low temperature in April: 23°C

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

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Average rainfall in April
Castries City, Saint Lucia

Average rainfall in April - Castries City, Saint Lucia
  • Average rainfall in April: 113mm

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

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Average rainfall days in April
Castries City, Saint Lucia

Average rainfall days in April - Castries City, Saint Lucia
  • Average rainfall days in April: 11 days

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

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Average sea temperature in April
Castries City, Saint Lucia

Average sea temperature in April - Castries City, Saint Lucia
  • Average sea temperature in April: 27°C

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

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Average daylight in April /
Average sunshine in April
Castries City, Saint Lucia

Average daylight in April / Average sunshine in April - Castries City, Saint Lucia
  • Average daylight in April: 12h and 3min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in April: 8h

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

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Average UV index in April
Castries City, Saint Lucia

Average UV index in April - Castries City, Saint Lucia
  • Average UV index in April: 12

The 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).

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Castries City, Saint Lucia

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