Temperatures in December
It's hot in December in Saint Lucia with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 30°C. At night, you can expect temperatures between 24°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Saint Lucia in December. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of December
The month of December starts in Saint Lucia with hot temperatures, averaging around 30°C during the day and nights close to 25°C. Plenty of days with a chance of precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-December
By mid-December, the average daytime temperature stays the same at 30°C, with nights close to 25°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of December
By the end of December, the average daytime temperature in Saint Lucia will be around 30°C, with nights close to 25°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Precipitation in December
In December, there is an average of 162 mm of precipitation, spread over 18 days. The wind speed is around 4 Bft, mostly coming from the East.
Across the whole month, the average precipitation chance is 59% per day. Though that seems frequent, the weather’s variable. There are also a few days with lower precipitation chances.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in December for Saint Lucia. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Saint Lucia in December |
UK | ||
|---|---|---|---|
 Average Temperature |
30°C | 9°C | |
 High Temp |
30°C | 11°C | |
| Low Temp |
29°C | 8°C | |
 Total Precipitation |
162 mm | 67 mm | |
| Rainy Days |
18 days | 10 days | |
November
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is December a good time to visit Saint Lucia?
After some sun? Then December isn’t the best time to be in Saint Lucia. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Saint Lucia runs from June to November.
Temperature records for Saint Lucia in December
With 35°C, Saint Lucia hit the highest temperature in the last 10 years in December 2021. The lowest daytime temperature in this month was 25°C in 2018. The extreme night temperatures ranged from a low of 17°C to a high of 27°C.
Check out the climate of Saint Lucia for all months and discover the best travel time
The climate of Saint Lucia is based on weather data from Castries. Other locations might have different weather. You can check out all destinations in Saint Lucia for a full picture of the climate.
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Daily Temperature in December in Saint Lucia
This chart shows the average daily temperatures, both day and night, for each day in December in Saint Lucia, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in Saint Lucia
The chart below shows the average daily precipitation in December for Saint Lucia, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 18 days of rain in Saint Lucia.
Daily UV Index in December in Saint Lucia
This chart shows the average daily UV index in December in Saint Lucia, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Saint Lucia Over the Years
This chart shows the average temperature in December in Saint Lucia, measured in degrees Celsius, over the past years.
Total Precipitation in December in Saint Lucia Over the Years
This chart shows the average precipitation in December in Saint Lucia, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in December for Saint Lucia
Click on a specific day in December for detailed info on the typical weather on that day in Saint Lucia. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Saint Lucia
Have you been to Saint Lucia in December?
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Average Weather in Saint Lucia by Month
Click on a month below to see detailed weather info for Saint Lucia. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Saint Lucia for all months at once
