December weather forecast
Bisee, Saint Lucia

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Weather in December

Concluding the year, December in Bisee, Saint Lucia, shows further drops in rainfall, marking the end of the rainy season. With 35mm (1.38") of rainfall over 19.1 days, December is a much drier spell for the city. The weather continues to present a consistent visibility of 10km (6.2mi) and a uniform UV index, providing ideal conditions for sightseeing. Despite the reducing daylight hours, there is much sun to soak in, wrapped in the Caribbean city's warmth. Wind gusts maintain their consistency, bringing a comforting conclusion to the year's weather journey.

Temperature

December in Bisee experiences an average high-temperature of a still moderately hot 28.2°C (82.8°F), barely different from November's 29.2°C (84.6°F). Bisee's nighttime temperatures in December display a slight drop from daytime highs, averaging to a still moderately hot 25.7°C (78.3°F).

Heat index

The heat index value for December is computed to be a tropical 32°C (89.6°F). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.

Humidity

In Bisee, the average relative humidity in December is 74%.

Rainfall

In December, in Bisee, Saint Lucia, the rain falls for 19.1 days. Throughout December, 35mm (1.38") of precipitation is accumulated. Throughout the year, there are 255.2 rainfall days, and 560mm (22.05") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Bisee, with an average of 11h and 18min of daylight.
On the first day of the month, sunrise is at 06:12 and sunset at 17:33. On the last day of December, sunrise is at 06:27 and sunset at 17:46 AST.

Sunshine

The month with the least sunshine is December, with an average of 6.4h of sunshine.

UV index

The months with the highest UV index in Bisee are January through May, July through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

How hot is it in Bisee in December?

In Bisee, 28.2°C (82.8°F) is the average high-temperature and 25.7°C (78.3°F) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in December is computed to be 32°C (89.6°F).

What is the average humidity in December in Bisee?

The average relative humidity in December is 74%.

How many days does it rain in December in Bisee?

In Bisee, Saint Lucia, during December, the rain falls for 19.1 days and regularly aggregates up to 35mm (1.38") of precipitation.

What is the month with the shortest days in Bisee?

December has the shortest days of the year in Bisee, Saint Lucia, with an average of 11h and 18min of daylight.

What is the average length of the day in December in Bisee?

In Bisee, Saint Lucia, the average day length in December is 11h and 19min.

What time are sunrise and sunset in December in Bisee?

In December, on the first day of the month, sunrise is at 06:12 and sunset at 17:33. On the last day of the month, sunrise is at 06:27 and sunset at 17:46 AST.

What is the month with the least sunshine in Bisee?

With an average of 6.4h of sunshine, December has the least sunshine of the year in Bisee, Saint Lucia.

How many hours of sunshine does Bisee have in December?

The average sunshine duration in December is 6.4h.

When is the highest UV index in Bisee?

January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index in Bisee, Saint Lucia.

What is the UV index reading in December in Bisee?

In December, the average daily maximum UV index in Bisee, Saint Lucia, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in December
Bisee, Saint Lucia

Average temperature in December - Bisee, Saint Lucia
  • Average high temperature in December: 28.2°C

The warmest month (with the highest average high temperature) is September (30.3°C).
The months with the lowest average high temperature are January and February (27.5°C).

  • Average low temperature in December: 25.7°C

The month with the highest average low temperature is October (27.2°C).
The coldest month (with the lowest average low temperature) is March (25°C).

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Average pressure in December
Bisee, Saint Lucia

Average pressure in December - Bisee, Saint Lucia
  • Average pressure in December: 1013.4mbar

The month with the highest atmospheric pressure is June (1015mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).

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Average wind speed in December
Bisee, Saint Lucia

Average wind speed in December - Bisee, Saint Lucia
  • Average wind speed in December: 22.5km/h

The windiest month (with the highest average wind speed) is February (24.7km/h).
The calmest month (with the lowest average wind speed) is September (16.7km/h).

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Average humidity in December
Bisee, Saint Lucia

Average humidity in December - Bisee, Saint Lucia
  • Average humidity in December: 74%

The months with the highest relative humidity are May, June, July, August and November (75%).
The months with the lowest relative humidity are January, February, March and September (73%).

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Average rainfall in December
Bisee, Saint Lucia

Average rainfall in December - Bisee, Saint Lucia
  • Average rainfall in December: 35mm

The wettest month (with the highest rainfall) is August (82mm).
The driest month (with the least rainfall) is February (19mm).

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Average rainfall days in December
Bisee, Saint Lucia

Average rainfall days in December - Bisee, Saint Lucia
  • Average rainfall days in December: 19.1 days

The month with the highest number of rainy days is July (26.5 days).
The month with the least rainy days is February (16.4 days).

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Average daylight in December /
Average sunshine in December
Bisee, Saint Lucia

Average daylight in December / Average sunshine in December - Bisee, Saint Lucia
  • Average daylight in December: 11h and 2min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in December: 6h and 2min

The month with the most sunshine is April (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in December
Bisee, Saint Lucia

Average sunshine days in December - Bisee, Saint Lucia
  • Average sunshine days in December: 7.3 days

The month with the most sunshine days is January (7.8 days).
The month with the least sunshine days is July (0.8 days).

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Average UV index in December
Bisee, Saint Lucia

Average UV index in December - Bisee, Saint Lucia
  • Average UV index in December: 7

The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).

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Average cloud cover in December
Bisee, Saint Lucia

Average cloud cover in December - Bisee, Saint Lucia
  • Average cloud cover in December: 43

The months with the most cloud cover are June and July (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 38).

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Average visibility in December
Bisee, Saint Lucia

Average visibility in December - Bisee, Saint Lucia
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Bisee, Saint Lucia

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