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

Monthly 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
The best months for a swim in Willemstad, Curaçao, are February through June, August and September, with a perfect temperature - varying between 25°C (77°F) and 29°C (84.2°F), and scarce rainfall.
January, like December, in Willemstad, Curaçao, is a moderately hot winter month, with average temperature fluctuating between 29.7°C (85.5°F) and 24.3°C (75.7°F). With an average high-temperature of 29.7°C (85.5°F) and an average low-temperature of 24.3°C (75.7°F), January is the coldest month. The average heat index is calculated to a very hot 36.1°C (97°F). Weather in January »

The last month of the winter, February, is a hot month in Willemstad, Curaçao, with average temperature varying between 30°C (86°F) and 24.4°C (75.9°F). An excellent water temperature of 26°C (78.8°F) and only 5.3 rainfall days, with 25.5mm (1") of accumulated rainfall, makes February a prime for swimming and other water activities. Weather in February »

The first month of the spring, March, is also a hot month in Willemstad, Curaçao, with average temperature varying between 30.5°C (86.9°F) and 24.8°C (76.6°F). The ideal sea water temperature of 26°C (78.8°F) and only 2.8 rainfall days, with 14.2mm (0.6") of accumulated rainfall, makes March the best time for swimming and other water activities. Weather in March »

April, the same as March, in Willemstad, Curaçao, is a hot spring month, with average temperature ranging between max 31.1°C (88°F) and min 25.5°C (77.9°F). An excellent water temperature of 27°C (80.6°F) and only 2.8 rainfall days, with 19.6mm (0.8") of accumulated rainfall, makes April a prime for swimming and other water activities. Weather in April »

The last month of the spring, May, is another tropical month in Willemstad, Curaçao, with average temperature varying between 31.6°C (88.9°F) and 26.3°C (79.3°F). The ideal sea water temperature of 27°C (80.6°F) and only 2 rainfall days, with 19.6mm (0.8") of accumulated rainfall, makes May the best time for swimming and other water activities. Weather in May »

The first month of the summer, June, is still a hot month in Willemstad, Curaçao, with average temperature fluctuating between 26.4°C (79.5°F) and 32°C (89.6°F). The ideal sea water temperature of 28°C (82.4°F) and only 3 rainfall days, with 19.3mm (0.8") of accumulated rainfall, makes June the best time for swimming and other water activities. Weather in June »

July, like June, is a hot summer month in Willemstad, Curaçao, with average temperature varying between 31.9°C (89.4°F) and 26.1°C (79°F). In July, the average high-temperature is relatively the same as in June - a still hot 31.9°C (89.4°F). Weather in July »

The last month of the summer, August, is another hot month in Willemstad, Curaçao, with temperature in the range of an average high of 32.4°C (90.3°F) and an average low of 26.3°C (79.3°F). An excellent water temperature of 28°C (82.4°F) and only 5.1 rainfall days, with 41.5mm (1.6") of accumulated rainfall, makes August a prime for swimming and other water activities. Weather in August »

September, the first month of the autumn, in Willemstad, is still a tropical month, with average temperature fluctuating between 26.5°C (79.7°F) and 32.6°C (90.7°F). An excellent water temperature of 29°C (84.2°F) and only 4.6 rainfall days, with 48.6mm (1.9") of accumulated rainfall, makes September a prime for swimming and other water activities. Weather in September »

October, the same as September, in Willemstad, Curaçao, is another tropical autumn month, with temperature in the range of an average high of 31.9°C (89.4°F) and an average low of 26.2°C (79.2°F). In October, the average high-temperature is almost the same as in September - a still hot 31.9°C (89.4°F). Weather in October »

The last month of the autumn, November, is also a hot month in Willemstad, Curaçao, with average temperature varying between 25.6°C (78.1°F) and 31.1°C (88°F). In November, the average high-temperature is essentially the same as in October - a still tropical 31.1°C (88°F). Weather in November »

December, the first month of the winter, in Willemstad, is still a tropical month, with average temperature varying between 30.1°C (86.2°F) and 24.8°C (76.6°F). In December, the average high-temperature is relatively the same as in November - a still hot 30.1°C (86.2°F). Weather in December »

What is the coldest month in Willemstad?

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

How much does it rain in Willemstad?

Throughout the year, in Willemstad, there are 69.4 rainfall days, and 553.4mm (21.8") of precipitation is accumulated.

What months are the sea coldest in Willemstad?

Months with the coldest seawater in Willemstad, Curaçao, are February and March, with an average sea temperature of 26°C (78.8°F).

When is the highest UV index in Willemstad?

Months with the highest UV index in Willemstad, Curaçao, are February through September, with an average maximum UV index of 12.

What is the least humid month in Willemstad?

With an average relative humidity of 76.1%, March is the least humid month.

What is the driest month in Willemstad?

The month with the least rainfall in Willemstad, Curaçao, is March when the rain falls for 2.8 days and typically collects 14.2mm (0.6") of precipitation.

When are the longest days in Willemstad?

June and July, with an average of 12.8h of daylight, are months with the longest days.

What month has the most sunshine in Willemstad?

With an average of 9.5h of sunshine, August has the most sunshine of the year.

What is the warmest month in Willemstad?

With an average high-temperature of 32.6°C (90.7°F) and an average low-temperature of 26.5°C (79.7°F), September is the warmest month.

When is the sea warmest in Willemstad?

September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Willemstad, Curaçao.

What is the most humid month in Willemstad?

With an average relative humidity of 79.6%, November is the most humid month in Willemstad.

What is the wettest month in Willemstad?

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

What is the month with the shortest days in Willemstad?

The month with the shortest days in Willemstad, Curaçao, is December, with an average of 11.4h of daylight.

What is the month with the least sunshine in Willemstad?

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

When is the lowest UV index in Willemstad?

With an average maximum UV index of 9, December is the month with the lowest UV index in Willemstad, Curaçao.
Average temperature - Willemstad, Curaçao
Average humidity - Willemstad, Curaçao

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

Average rainfall - Willemstad, Curaçao

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 - Willemstad, Curaçao

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 - Willemstad, Curaçao

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 / Average sunshine - Willemstad, Curaçao

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

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 - Willemstad, Curaçao

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).