December weather forecast
Basse Terre, Guadeloupe

Seascape of the Deshaies Bay in Basse Terre, Guadeloupe
Seascape of the Deshaies Bay in Basse Terre, Guadeloupe

December

Weather in December

December in Basse Terre, Guadeloupe brings in more refreshing temperatures ranging from 25.8°C (78.4°F) to 27.3°C (81.1°F). Despite the temperature dip, the consistent relative humidity of 76% ensures a comfortable atmosphere, suitable for various outdoor activities. With this combination of weather characteristics, December showcases some of the best weather in Guadeloupe. Concluding the year, it fosters an environment receptive to festive gatherings and outdoor holiday events.

Temperature

Basse Terre's weather in December displays an average high-temperature of a still warm 27.3°C (81.1°F), showing minor disparity from November's 28.3°C (82.9°F). Basse Terre's average nighttime temperature in December modestly descends to a still warm 25.8°C (78.4°F).

Heat index

December's average heat index is calculated to be a hot 30°C (86°F). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

The average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 23.9 days. Throughout December, 68mm (2.68") of precipitation is accumulated. In Basse Terre, during the entire year, the rain falls for 261.2 days and collects up to 839mm (33.03") of precipitation.

Sea temperature

In Basse Terre, the average seawater temperature in December is 27.6°C (81.7°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and other activities, ensuring comfort and enjoyment for lengthened periods.

Daylight

The month with the shortest days is December, with an average of 11h and 12min of daylight.
On the first day of the month, sunrise is at 06:18 and sunset at 17:33. On the last day of December, sunrise is at 06:34 and sunset at 17:45 AST.

Sunshine

December has the least sunshine of the year, with an average of 6.5h of sunshine.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in December translates into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Alert! The Sun's UV rays are heightened by the reflection of sand and water.

Frequently asked questions

What are December temperatures?
The high-temperature, in December, in Basse Terre, is 27.3°C (81.1°F), while the low-temperature averages to 25.8°C (78.4°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 30°C (86°F).
What is the average humidity in December?
In Basse Terre, the average relative humidity in December is 76%.
How many days does it rain in December?
In Basse Terre, in December, during 23.9 rainfall days, 68mm (2.68") of precipitation is typically accumulated.
How warm is the water in December?
In Basse Terre, Guadeloupe, in December, the average water temperature is 27.6°C (81.7°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 11h and 12min of daylight.
What is the average length of the day in December?
The average day length in December in Basse Terre is 11h and 12min.
What time are sunrise and sunset in December?
In December, on the first day of the month, sunrise is at 06:18 and sunset at 17:33. On the last day of the month, sunrise is at 06:34 and sunset at 17:45 AST.
What is the month with the least sunshine?
With an average of 6.5h of sunshine, December has the least sunshine of the year.
How many hours of sunshine does Basse Terre have in December?
In Basse Terre, the average sunshine duration in December is 6.5h.
When is the highest UV index?
January through December, with an average maximum UV index of 7, are months with the highest UV index.
What are the months with the lowest UV index?
January through December, with an average maximum UV index of 7, are months with the lowest UV index.
What is the UV index reading in December?
The average daily maximum UV index in December is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Basse Terre, Guadeloupe
  • Average high temperature in December: 27.3°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is March (26.3°C).

  • Average low temperature in December: 25.8°C

The month with the highest average low temperature is September (27.5°C).
The coldest month (with the lowest average low temperature) is February (24.8°C).

Average pressure in December
Basse Terre, Guadeloupe
  • Average pressure in December: 1014.5mbar

The month with the highest atmospheric pressure is June (1016mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).

Average wind speed in December
Basse Terre, Guadeloupe
  • Average wind speed in December: 22.1km/h

The windiest month (with the highest average wind speed) is July (24km/h).
The calmest month (with the lowest average wind speed) is October (18.1km/h).

Average humidity in December
Basse Terre, Guadeloupe
  • Average humidity in December: 76%

The months with the highest relative humidity are May, July, August and November (77%).
The months with the lowest relative humidity are January, February and March (75%).

Average rainfall in December
Basse Terre, Guadeloupe
  • Average rainfall in December: 68mm

The wettest month (with the highest rainfall) is August (119mm).
The driest month (with the least rainfall) is February (31mm).

Average rainfall days in December
Basse Terre, Guadeloupe
  • Average rainfall days in December: 23.9 days

The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is March (16.9 days).

Average sea temperature in December
Basse Terre, Guadeloupe
  • Average sea temperature in December: 27.6°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (26.7°C).

Average daylight in December /
Average sunshine in December
Basse Terre, Guadeloupe
  • Average daylight in December: 11h and 1min

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

  • Average sunshine in December: 6h and 3min

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

Average sunshine days in December
Basse Terre, Guadeloupe
  • Average sunshine days in December: 3.6 days

The month with the most sunshine days is March (9.3 days).
The month with the least sunshine days is July (0.7 days).

Average UV index in December
Basse Terre, Guadeloupe
  • Average UV index in December: 7

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

Average cloud cover in December
Basse Terre, Guadeloupe
  • Average cloud cover in December: 42

The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is February (Cloud cover 35).

Average visibility in December
Basse Terre, Guadeloupe
  • 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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