Monthly weather forecast and climate
Willemstad, Curaçao

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

The best time to visit Willemstad

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.

Weather in January

January, the same as December, is a moderately hot winter month in Willemstad, Curaçao, with average temperature ranging between min 24.3°C (75.7°F) and max 29.7°C (85.5°F). 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). The average heat index is estimated at a very hot 36.1°C (97°F). Weather in January »

Weather in February

The last month of the winter, February, is a hot month in Willemstad, Curaçao, with temperature in the range of an average high of 30°C (86°F) and an average low of 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 »

Weather in March

The first month of the spring, March, is still a tropical month in Willemstad, Curaçao, with average temperature ranging between min 24.8°C (76.6°F) and max 30.5°C (86.9°F). The perfect water temperature of 26°C (78.8°F) with 14.2mm (0.56") of accumulated rainfall and only 2.8 rainfall days, makes March a great period for swimming and other water activities. Weather in March »

Weather in April

April, like March, is a hot spring month in Willemstad, Curaçao, with average temperature varying between 25.5°C (77.9°F) and 31.1°C (88°F). An excellent water temperature of 27°C (80.6°F) and only 2.8 rainfall days, with 19.6mm (0.77") of accumulated rainfall, makes April a prime for swimming and other water activities. Weather in April »

Weather in May

The last month of the spring, May, is also a hot month in Willemstad, Curaçao, with average temperature varying between 31.6°C (88.9°F) and 26.3°C (79.3°F). An excellent water temperature of 27°C (80.6°F) and only 2 rainfall days, with 19.6mm (0.77") of accumulated rainfall, makes May a prime for swimming and other water activities. Weather in May »

Weather in June

The first month of the summer, June, is still a hot month in Willemstad, Curaçao, with average temperature fluctuating between 32°C (89.6°F) and 26.4°C (79.5°F). The perfect water temperature of 28°C (82.4°F) with 19.3mm (0.76") of accumulated rainfall and only 3 rainfall days, makes June a great period for swimming and other water activities. Weather in June »

Weather in July

July, like June, is another tropical summer month in Willemstad, Curaçao, with average temperature ranging between min 26.1°C (79°F) and max 31.9°C (89.4°F). In July, the average high-temperature is essentially the same as in June - a still tropical 31.9°C (89.4°F). Weather in July »

Weather in August

August, the last month of the summer, in Willemstad, is another tropical month, with average temperature varying between 32.4°C (90.3°F) and 26.3°C (79.3°F). The ideal sea water temperature of 28°C (82.4°F) and only 5.1 rainfall days, with 41.5mm (1.63") of accumulated rainfall, makes August the best time for swimming and other water activities. Weather in August »

Weather in September

The first month of the autumn, September, is also a hot month in Willemstad, Curaçao, with average temperature ranging between min 26.5°C (79.7°F) and max 32.6°C (90.7°F). The perfect water temperature of 29°C (84.2°F) with 48.6mm (1.91") of accumulated rainfall and only 4.6 rainfall days, makes September a great period for swimming and other water activities. Weather in September »

Weather in October

October, like September, is another tropical autumn month in Willemstad, Curaçao, with average temperature fluctuating between 31.9°C (89.4°F) and 26.2°C (79.2°F). In Willemstad, Curaçao, the average high-temperature is essentially the same as in September - a still tropical 31.9°C (89.4°F). Weather in October »

Weather in November

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

Weather in December

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

What is the coldest month in Willemstad?

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.

How many days does it rain in Willemstad?

In Willemstad, during the entire year, the rain falls for 69.4 days and collects up to 553.4mm (21.79") of precipitation.

What months are the sea coldest in Willemstad?

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

What are the months with the highest UV index in Willemstad?

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

What is the least humid month in Willemstad?

The least humid month is March, with an average relative humidity of 76.1%.

What is the driest month in Willemstad?

March is the month with the least rainfall in Willemstad. Rain falls for 2.8 days and accumulates 14.2mm (0.56") of precipitation.

When are the longest days in Willemstad?

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

What month has the most sunshine in Willemstad?

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

What is the warmest month in Willemstad?

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

When is the sea warmest in Willemstad?

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

What is the most humid month in Willemstad?

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

What is the rainiest month in Willemstad?

December is the month with the most rainfall in Willemstad. Rain falls for 11.5 days and accumulates 99.8mm (3.93") of precipitation.

What is the month with the shortest days in Willemstad?

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

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.

What is the month with the lowest UV index in Willemstad?

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

Average temperature
Willemstad, Curaçao

Average temperature - Willemstad, Curaçao

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).

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
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%).

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Average rainfall
Willemstad, Curaçao

Average rainfall - Willemstad, Curaçao

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
Willemstad, Curaçao

Average rainfall days - Willemstad, Curaçao

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
Willemstad, Curaçao

Average sea temperature - Willemstad, Curaçao

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 / Average sunshine
Willemstad, Curaçao

Average daylight / Average sunshine - Willemstad, Curaçao

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).

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
Willemstad, Curaçao

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).

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