January weather forecast
Willemstad, Curaçao

The organized harbor city of Willemstad in Curaçao
The organized harbor city of Willemstad in Curaçao

Weather in January

January, like December, in Willemstad, Curaçao, is another warm winter month, with average temperature varying between 29.7°C (85.5°F) and 24.3°C (75.7°F).

Temperature

The coldest month is January, with an average high-temperature of 29.7°C (85.5°F) and an average low-temperature of 24.3°C (75.7°F).

Heat index

In January, the average heat index is computed to be a torrid 36.1°C (97°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Willemstad, Curaçao, the average relative humidity is 77.4%.

Rainfall

In Willemstad, in January, it is raining for 8.6 days, with typically 44.7mm (1.76") of accumulated precipitation. Throughout the year, there are 69.4 rainfall days, and 553.4mm (21.79") of precipitation is accumulated.

Sea temperature

In Willemstad, in January, the average water temperature is 27°C (80.6°F).
Note: 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

The average length of the day in Willemstad is 11.5h.

Sunshine

In Willemstad, Curaçao, the average sunshine is 8.4h.

UV index

In Willemstad, the average daily maximum UV index in January is 10. A UV Index estimate of 8 to 10 represents a very high health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 10 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the coldest month in Willemstad?

The coldest month in Willemstad is January, with an average high-temperature of 29.7°C (85.5°F) and an average low-temperature of 24.3°C (75.7°F).

What is the temperature in January in Willemstad?

The average high-temperature, in January, is 29.7°C (85.5°F), while the average low-temperature is 24.3°C (75.7°F). In January, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 36.1°C (97°F).

What is the average humidity in January in Willemstad?

In Willemstad, Curaçao, the average relative humidity in January is 77.4%.

How much does it rain in Willemstad in January?

In January, in Willemstad, the rain falls for 8.6 days. Throughout January, 44.7mm (1.76") of precipitation is accumulated.

How warm is the water in January in Willemstad?

In January, the average sea 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.

What is the average length of the day in January in Willemstad?

In Willemstad, Curaçao, the average length of the day in January is 11.5h.

How long on average sun shines in January in Willemstad?

The average sunshine in January is 8.4h.

How high is the UV index in January in Willemstad?

In January, the average daily maximum UV index in Willemstad is 10. A UV Index of 8 to 10 symbolizes a very high hazard to health from the exposure to the Sun's UV radiation.

Average temperature in January
Willemstad, Curaçao

Average temperature in January - Willemstad, Curaçao
  • Average high temperature in January: 29.7°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 January: 24.3°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).

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Average humidity in January
Willemstad, Curaçao

Average humidity in January - Willemstad, Curaçao
  • Average humidity in January: 77.4%

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

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Average rainfall in January
Willemstad, Curaçao

Average rainfall in January - Willemstad, Curaçao
  • Average rainfall in January: 44.7mm

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

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Average rainfall days in January
Willemstad, Curaçao

Average rainfall days in January - Willemstad, Curaçao
  • Average rainfall days in January: 8.6 days

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

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Average sea temperature in January
Willemstad, Curaçao

Average sea temperature in January - Willemstad, Curaçao
  • Average sea temperature in January: 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 February and March (26°C).

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Average daylight in January /
Average sunshine in January
Willemstad, Curaçao

Average daylight in January / Average sunshine in January - Willemstad, Curaçao
  • Average daylight in January: 11.5h

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

  • Average sunshine in January: 8.4h

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

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Average UV index in January
Willemstad, Curaçao

Average UV index in January - Willemstad, Curaçao
  • Average UV index in January: 10

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).

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