January is the coolest month in Saint Lucia. Despite being the month with the coldest temperatures, the average high temperature is still a warm 84°F (29°C). The low temperatures average at 73°F (23°C).
In February, the average high and average low temperatures remain generally the same at 84°F (29°C) and 73°F (23°C) respectively.
March receives the highest sunshine average at 10 hours of sunlight daily. The high temperature averages increase a small amount to 86°F (30°C). However, the average low temperature holds steady at 73°F (23°C).
Saint Lucia Weather in April: The sunny weather continues in April with the average high temperature remaining at 86°F (31°C). The low temperature increases 2 degrees to 75°F (24°C).
In May, the enjoyable tropical weather continues. The high temperatures and low temperatures range between 88°F (31°C) and 77°F (25°C).
June sees high and low temperatures remaining exactly the same as the previous month.
In July, the temperatures, again, hold steady at 88°F (31°C) for the average high temperature and 77°F (25°C) for the average low temperature.
Saint Lucia Weather in August: There is no change in temperature averages in August. However, August has most ideal sea temperature of the year at 84°F (29°C). As such, August is a great time to hit the beaches of Saint Lucia.
September is the wettest month of the year for Saint Lucia with a precipitation average of 193mm. The high temperature and low temperatures stay constant at 88°F (31°C) and 77°F (25°C) respectively.
Saint Lucia Weather in October: Temperatures in this locale remain the same for the month of October.
In November, the average high temperature holds steady at 88°F (31°C). However, the average high temperature climbs a few degrees to 79°F (26°C). This makes November the warmest month of the year in Saint Lucia.
December sees the climate of Saint Lucia cool a few degrees. The average high temperature decreases to 86°F (30°C) while the average low temperature goes down to 75°F (24°C).
With the climate generally pleasing all year around, there’s generally no wrong time to visit this beautiful locale. However, to visit when the weather is at its absolute best, the most advisable time to visit is during mid-December up until April. It’s important to note, however, that these months also have the highest rates for accommodations, travel and activities in general. For those who love music, it’s best to visit in the early half of May as the Saint Lucia Jazz and Arts Festival is held during this time on the Pigeon Island National Park.
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