December weather forecast
Cul-de-Sac, Saint Martin

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Weather in December

December ushers in the dry season in Cul-de-Sac. There's a significant drop in rainfall to 45mm (1.77"), marking the driest period since February. The outdoor temperature becomes more pleasant as the highest temperature averages at a comfortable 26.8°C (80.2°F). Despite being the beginning of the dry season, the amount of sunshine hours remains fairly low, contributing to the cooler atmosphere. Hovering on the edge of the dry season, December's weather in Cul-de-Sac is a welcome change from the humid, wet conditions experienced during the majority of the year.

Temperature

In December, Cul-de-Sac experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 26.8°C (80.2°F), closely mirroring the climate in November. Cul-de-Sac's nighttime average temperature in December drops marginally from the daytime highs, settling at a still moderately hot 25.8°C (78.4°F).

Humidity

The months with the lowest humidity in Cul-de-Sac are January through March and December, with an average relative humidity of 75%.

Rainfall

In December, the rain falls for 21.5 days. Throughout December, 45mm (1.77") of precipitation is accumulated. Throughout the year, there are 252.8 rainfall days, and 771mm (30.35") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 6min of daylight.
On the first day of the month, sunrise is at 06:27 and sunset at 17:35. On the last day of December, in Cul-de-Sac, sunrise is at 06:43 and sunset at 17:47 AST.

Sunshine

The months with the least sunshine are November and December, with an average of 6.5h of sunshine.

UV index

The month with the lowest UV index in Cul-de-Sac is December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What are the temperatures in Cul-de-Sac in December?

In Cul-de-Sac, 26.8°C (80.2°F) is the average high-temperature and 25.8°C (78.4°F) is the average low-temperature during December. In November, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 31°C (87.8°F).

What is the least humid month in Cul-de-Sac?

The months with the lowest humidity in Cul-de-Sac, Saint Martin, are January through March and December, with an average relative humidity of 75%.

What is the average humidity in December in Cul-de-Sac?

In December, the average relative humidity in Cul-de-Sac is 75%.

How much does it rain in Cul-de-Sac in December?

In Cul-de-Sac, during December, the rain falls for 21.5 days and regularly aggregates up to 45mm (1.77") of precipitation.

What is the month with the shortest days in Cul-de-Sac?

December has the shortest days of the year in Cul-de-Sac, Saint Martin, with an average of 11h and 6min of daylight.

How many hours of daylight does Cul-de-Sac have in December?

The average day length in December is 11h and 4min.

What time are sunrise and sunset in December in Cul-de-Sac?

In December, on the first day of the month, sunrise is at 06:27 and sunset at 17:35. On the last day of the month, in Cul-de-Sac, Saint Martin, sunrise is at 06:43 and sunset at 17:47 AST.

What is the month with the least sunshine in Cul-de-Sac?

November and December, with an average of 6.5h of sunshine, are months with the least sunshine in Cul-de-Sac.

How many hours of sunshine does Cul-de-Sac have in December?

In December, the average sunshine duration is 6.5h.

When is the lowest UV index in Cul-de-Sac?

The month with the lowest UV index in Cul-de-Sac, Saint Martin, is December, with an average maximum UV index of 6.

What is the UV index reading in December in Cul-de-Sac?

In December, the average daily maximum UV index in Cul-de-Sac is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.

Average temperature in December
Cul-de-Sac, Saint Martin

Average temperature in December - Cul-de-Sac, Saint Martin
  • Average high temperature in December: 26.8°C

The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is March (25.8°C).

  • Average low temperature in December: 25.8°C

The month with the highest average low temperature is September (27.7°C).
The coldest month (with the lowest average low temperature) is March (24.7°C).

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Average pressure in December
Cul-de-Sac, Saint Martin

Average pressure in December - Cul-de-Sac, Saint Martin
  • Average pressure in December: 1015.2mbar

The months with the highest atmospheric pressure are January and June (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.7mbar).

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Average wind speed in December
Cul-de-Sac, Saint Martin

Average wind speed in December - Cul-de-Sac, Saint Martin
  • Average wind speed in December: 24.2km/h

The windiest month (with the highest average wind speed) is July (25.6km/h).
The calmest month (with the lowest average wind speed) is October (18.9km/h).

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Average humidity in December
Cul-de-Sac, Saint Martin

Average humidity in December - Cul-de-Sac, Saint Martin
  • Average humidity in December: 75%

The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are January, February, March and December (75%).

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Average rainfall in December
Cul-de-Sac, Saint Martin

Average rainfall in December - Cul-de-Sac, Saint Martin
  • Average rainfall in December: 45mm

The wettest month (with the highest rainfall) is October (103mm).
The driest month (with the least rainfall) is February (19mm).

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Average rainfall days in December
Cul-de-Sac, Saint Martin

Average rainfall days in December - Cul-de-Sac, Saint Martin
  • Average rainfall days in December: 21.5 days

The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is February (14.8 days).

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Average daylight in December /
Average sunshine in December
Cul-de-Sac, Saint Martin

Average daylight in December / Average sunshine in December - Cul-de-Sac, Saint Martin
  • Average daylight in December: 11h and 1min

The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).

  • Average sunshine in December: 6h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

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Average sunshine days in December
Cul-de-Sac, Saint Martin

Average sunshine days in December - Cul-de-Sac, Saint Martin
  • Average sunshine days in December: 5.5 days

The month with the most sunshine days is March (9.9 days).
The month with the least sunshine days is August (1.7 days).

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Average UV index in December
Cul-de-Sac, Saint Martin

Average UV index in December - Cul-de-Sac, Saint Martin
  • Average UV index in December: 6

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

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Average cloud cover in December
Cul-de-Sac, Saint Martin

Average cloud cover in December - Cul-de-Sac, Saint Martin
  • Average cloud cover in December: 39

The months with the most cloud cover are May, June and August (Cloud cover 42).
The months with the least cloud cover are February and March (Cloud cover 34).

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Average visibility in December
Cul-de-Sac, Saint Martin

Average visibility in December - Cul-de-Sac, Saint Martin
  • 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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Cul-de-Sac, Saint Martin

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