Climate and Weather in Castries, St. Lucia
Castries is the capital city of St. Lucia, a picturesque island nation located in the eastern Caribbean Sea. The city of Castries experiences a tropical rainforest climate, characterized by warm temperatures, high humidity, and significant rainfall throughout the year. The weather in Castries is influenced by its tropical location, with relatively consistent temperatures and distinct wet and dry seasons.
Temperature
The average annual temperature in Castries ranges from 75°F (24°C) to 84°F (29°C). The city experiences minimal temperature fluctuations throughout the year, with warm and consistent temperatures ideal for beach vacations and outdoor activities. The warmest months are typically from June to September, with average high temperatures reaching around 86°F (30°C), while the coolest months are from January to March, with average highs around 82°F (28°C).
The table below provides a comprehensive overview of the average monthly temperatures in Castries:
Month | Average High (°F) | Average Low (°F) |
---|---|---|
January | 82 | 72 |
February | 82 | 72 |
March | 82 | 73 |
April | 84 | 74 |
May | 86 | 75 |
June | 86 | 77 |
July | 86 | 77 |
August | 86 | 77 |
September | 86 | 76 |
October | 86 | 76 |
November | 84 | 75 |
December | 82 | 73 |
Rainfall
Castries experiences a pronounced wet season from June to November, with the peak of rainfall occurring in the months of September and October. The annual rainfall in Castries averages around 60 inches (1,500 mm), with the majority of the precipitation falling during the wet season. The dry season, which spans from December to May, is characterized by significantly lower rainfall and relatively drier conditions.
The chart below illustrates the average monthly rainfall in Castries:

Humidity
Due to its tropical climate, Castries experiences high humidity levels throughout the year. The relative humidity in Castries typically ranges from 70% to 90%, creating a humid and muggy environment, especially during the wet season. Visitors to Castries should be prepared for the high humidity levels by staying hydrated and seeking shelter from the sun during peak daylight hours.
Conclusion
In summary, Castries, St. Lucia, offers a tropical rainforest climate with warm temperatures, significant rainfall during the wet season, and high humidity levels year-round. Visitors can enjoy relatively consistent temperatures and should plan their trips according to the distinct wet and dry seasons to make the most of their time in this beautiful Caribbean city.
A - Castries's Latitude is 13.983330 & Longitude is -60.966671.
A - Weather in Castries is 26° today.
A - Climate Conditions in Castries shows clear sky today.
A - Humidity in Castries is 4% today.
A - Wind speed in Castries is 26.06 km/h, flowing at 81° wind direction. today.
