Temperature in Saint Lucia in December

Daytime highs, nighttime lows and the warmest cities across Saint Lucia this December.

Saint Lucia, typically experiences warm weather in December, with maximum daytime temperatures around 29°C (84°F) and nighttime temperatures around 25°C (77°F) in Gros Islet.

What is the temperature of the different cities in Saint Lucia in December?

Explore the map below to discover average December temperatures at the top destinations in Saint Lucia. For a deeper dive, simply click on any destination dot.

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For a detailed overview over the year and the best time to visit Saint Lucia, check out our Saint Lucia's climate page.

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Best Places to Visit in Saint Lucia in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Saint Lucia.

Conditions Temperatures Precipitation

Temperatures Precipitation

Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in December: blue is cold, red is hot.

Marker color shows total monthly precipitation in December: pale blue is dry, deep blue is wet.

Regions in Saint Lucia

Drill down to December weather for any region in Saint Lucia.

Castries

Popular cities in Saint Lucia

Pick a city to see its December weather averages.

Saint Lucia temperatures in December: frequently asked questions

How hot does it get in Saint Lucia in December?

Gros Islet averages a daytime high of 29°C (84°F) in December, which is high for Saint Lucia.

How cold does it get at night in Saint Lucia in December?

After dark, Gros Islet cools to about 25°C (77°F) on an average December night.

How much sun does Saint Lucia get in December?

Gros Islet usually sees around 247 hours of sunlight, indicating many sunny days.

Interested in more climate information?

We have much more information about the climate in Saint Lucia.

Weather and climate has detailed information for every country in the world. Are you going to Saint Lucia? Get detailed historical weather averages for many cities in Saint Lucia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.