Willemstad
Curaçao
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Willemstad, Curaçao

The organized harbor city of Willemstad in Curaçao, with two small ships at the docks
The organized harbor city of Willemstad in Curaçao, with two small ships at the docks
December, the first month of the winter, in Willemstad, is still a hot month, with average temperature varying between 30.1°C (86.2°F) and 24.8°C (76.6°F).

Temperature

In Willemstad, the average high-temperature is almost the same as in November - a still tropical 30.1°C (86.2°F). In Willemstad, in December, the average low-temperature is 24.8°C (76.6°F).

Humidity

The average relative humidity in Willemstad is 78.9%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.5 days and accumulates 99.8mm (3.9") of precipitation.

Sea temperature

In December, the average sea temperature in Willemstad, Curaçao, 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.

Daylight

With an average of 11.4h of daylight, December has the shortest days of the year.

Sunshine

With an average of 7.8h of sunshine, December has the least sunshine of the year.

UV index

The month with the lowest UV index in Willemstad is December, with an average maximum UV index of 9. A UV Index reading of 8 to 10 represents a very high threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
The average daily UV index of 9 in December transform into the following instructions:
Take extra precautions. Protection against sun damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in December in Willemstad?

In December, the average high-temperature is 30.1°C (86.2°F), and the average low-temperature is 24.8°C (76.6°F).

What is the average humidity in December in Willemstad?

In December, the average relative humidity in Willemstad, Curaçao, is 78.9%.

How many days does it rain in December in Willemstad?

In December, in Willemstad, the rain falls for 11.5 days. Throughout December, 99.8mm (3.9") of precipitation is accumulated.

What is the wettest month in Willemstad?

The month with the most rainfall in Willemstad, Curaçao, is December when the rain falls for 11.5 days and typically aggregates up to 99.8mm (3.9") of precipitation.

What is the water temperature in December in Willemstad?

In December, the average sea temperature in Willemstad, Curaçao, is 27°C (80.6°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 in Willemstad?

December has the shortest days of the year in Willemstad, with an average of 11.4h of daylight.

How many hours of daylight does Willemstad have in December?

The average length of the day in December in Willemstad, Curaçao, is 11.4h.

What is the month with the least sunshine in Willemstad?

With an average of 7.8h of sunshine, December has the least sunshine of the year in Willemstad, Curaçao.

How many hours of sunshine does Willemstad have in December?

The average sunshine in December in Willemstad, Curaçao, is 7.8h.

When is the lowest UV index in Willemstad?

December is the month with the lowest UV index in Willemstad, with an average maximum UV index of 9.

How high is the UV index in December in Willemstad?

The average daily maximum UV index in December in Willemstad, Curaçao, is 9. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in December - Willemstad, Curaçao
  • Average high temperature in December: 30.1°C

The warmest month (with the highest average high temperature) is September (32.6°C).
The month with the lowest average high temperature is January (29.7°C).

  • Average low temperature in December: 24.8°C

The month with the highest average low temperature is September (26.5°C).
The coldest month (with the lowest average low temperature) is January (24.3°C).

Average humidity in December - Willemstad, Curaçao
  • Average humidity in December: 78.9%

The month with the highest relative humidity is November (79.6%).
The month with the lowest relative humidity is March (76.1%).

Average rainfall in December - Willemstad, Curaçao
  • Average rainfall in December: 99.8mm

The wettest month (with the highest rainfall) is December (99.8mm).
The driest month (with the lowest rainfall) is March (14.2mm).

Average rainfall days in December - Willemstad, Curaçao
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is December (11.5 days).
The month with the lowest number of rainy days is May (2 days).

Average sea temperature in December - Willemstad, Curaçao
  • Average sea temperature in December: 27°C

Best months for swimming (with the highest average sea temperature) are September and October (29°C).
Coldest months (with the lowest average sea temperature) are February and March (26°C).

Average daylight in December / Average sunshine in December - Willemstad, Curaçao
  • Average daylight in December: 11.4h

Months with the longest days are June and July (Average daylight: 12.8h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in December: 7.8h

The month with most sunshine is August (Average sunshine: 9.5h).
The month with least sunshine is December (Average sunshine: 7.8h).

Average UV index in December - Willemstad, Curaçao
  • Average UV index in December: 9

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).