Castries Weather in April
In Castries, April brings very high daytime temperatures around 30°C (86°F), with nights cooling to 25°C (77°F). Some rainfall is to be expected.
Rainfall in Castries in April
Typically, about 11 days will experience rainfall, with an average of 50 mm (2 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Castries in April
In April, Castries gets very high temperatures, with highs of 30°C (86°F). Nights cool to around 25°C (77°F). For most visitors, the main thing to prepare for is the heat during the day. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference.
Sunshine in Castries in April
With approximately 239 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.For Castries itself, January and February generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Lucia, check out our Castries's climate page.
Castries Temperature in April
Min Temperature
25°C (77°F)
Max Temperature
30°C (86°F)
Chance of Rain
37%
Precipitation
50 mm (2 in)
Rainy days
11 days
Humidity
76% *
Sunshine
239 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Castries typically stay consistent throughout April, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in April
Historical weather for Castries in April
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 April
Our historical data for Castries spans 1976 to 2026, revealing these weather extremes.
- Castries recorded its highest April temperature of 34°C (93°F) on April 23, 1980.
- The coldest April day was on April 13, 2008, with a maximum of 26°C (79°F).
- Castries registered its coldest April night on April 7, 1997, with temperatures dropping to 17°C (63°F).
Best Places in Saint Lucia in April
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 April →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Castries in April
Warm but pleasant conditions in Castries in April. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Castries in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Saint Lucia, check out our Castries's climate page.
Temperature Rainfall Sunshine Humidity
See the full Castries climate overview or explore weather in Saint Lucia.
