December weather forecastSaint-Barthélemy, Canada

December

Weather in December

December, the first month of the winter in Saint-Barthélemy, is also a moderately hot month, with an average temperature varying between 29°C (84.2°F) and 23°C (73.4°F).

Temperature

Temperatures reach their minimum during January through March and December, recording an average high-temperature of 29°C (84.2°F).

Rainfall

In Saint-Barthélemy, Canada, in December, it is raining for 20 days, with typically 89mm (3.5") of accumulated precipitation. In Saint-Barthélemy, during the entire year, the rain falls for 200 days and collects up to 1000mm (39.37") of precipitation.

Sea temperature

In Saint-Barthélemy, in December, the average water temperature is 27°C (80.6°F).
Note: For any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are deemed excellent and extremely satisfying for enduring periods.

Daylight

December has the shortest days of the year, with an average of 8h and 42min of daylight.
On the first day of December, sunrise is at 7:15 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:16 pm EST.

Sunshine

The months with the least sunshine are January, February, May through July, September through December, with an average of 8h of sunshine.

UV index

December is the month with the lowest UV index in Saint-Barthélemy, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.

Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The coldest period falls in January through March and December, when the average high-temperature reaches 29°C (84.2°F).

Saint-Barthélemy in December has an average high-temperature of 29°C (84.2°F) and an average low-temperature of 23°C (73.4°F).

In December, in Saint-Barthélemy, Canada, the rain falls for 20 days. Throughout December, 89mm (3.5") of precipitation is accumulated.

In Saint-Barthélemy, Canada, in December, the average water temperature is 27°C (80.6°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

The month with the shortest days is December, with an average of 8h and 42min of daylight.

In December, the average day length in Saint-Barthélemy is 8h and 41min.

On the first day of December, sunrise is at 7:15 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:16 pm EST.

January, February, May through July, September through December, with an average of 8h of sunshine, are months with the least sunshine in Saint-Barthélemy.

In Saint-Barthélemy, Canada, the average sunshine duration in December is 8h.

The month with the lowest UV index in Saint-Barthélemy, Canada, is December, with an average maximum UV index of 7.

In December, the average daily maximum UV index in Saint-Barthélemy is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.

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Year J F M A M J J A S O N December

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Average UV index

Average temperature in December
Saint-Barthélemy, Canada

Average high temperature in December: 29°C

The warmest months (with the highest average high temperature) are June, July, August, September and October (31°C).
The months with the lowest average high temperature are January, February, March and December (29°C).

Average low temperature in December: 23°C

The months with the highest average low temperature are June, July, August, September and October (25°C).
The coldest months (with the lowest average low temperature) are January, February, March and December (23°C).

Average rainfall in December
Saint-Barthélemy, Canada

Average rainfall in December: 89mm

The wettest month (with the highest rainfall) is September (129mm).
The driest months (with the least rainfall) are February and March (43mm).

Average rainfall days in December
Saint-Barthélemy, Canada

Average rainfall days in December: 20 days

The month with the highest number of rainy days is November (21 days).
The month with the least rainy days is April (12 days).

Average sea temperature in December
Saint-Barthélemy, Canada

Average sea temperature in December: 27°C

The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February and March (26°C).

Average daylight in December /
Average sunshine in December
Saint-Barthélemy, Canada

Average daylight in December: 8h and 42min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

Average sunshine in December: 8h

The months with the most sunshine are March, April and August (Average sunshine: 9h).
The months with the least sunshine are January, February, May, June, July, September, October, November and December (Average sunshine: 8h).

Average UV index in December
Saint-Barthélemy, Canada

Average UV index in December: 7

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).