Castries Weather in December

December in Castries averages 13°C (55°F) during the day and 5°C (41°F) at night. Quite a bit of rainfall is typical this month, with around 74 mm (2.9 in) on average. An umbrella is a good idea.

Rainfall in Castries in December

Historically, the month has about 10 days of rain, averaging 74 mm (2.9 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Castries in December

December in Castries sees highs of 13°C (55°F) and lows of 5°C (41°F) overnight. December is a notable month of the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Castries in December

With about 138 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

December in Castries can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.