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Climate - Aruba

Temperature, rainfall, prevailing weather conditions, when to go, what to pack

See also the US version (°F - inches - feet)

Flag - Aruba

In Aruba the climate is tropical, hot all year round: daytime temperatures hover around 29/31 degrees Celsius throughout the year, the air is muggy, but the wind tempers the heat.
Here are the average temperatures of Oranjestad.
Oranjestad average temperatures
Oranjestad J F M A M J J A S O N D
Min (°C) 24 24 25 25 26 26 26 26 26 26 26 25
Max (°C) 29 29 30 30 31 31 31 31 31 31 30 29

Precipitation is scarce, so that in an average year, about 500 millimetres of rain fall; the only fairly rainy period goes from October to December, when 80/95 millimetres or rain per month fall, due to the north-east trade winds, which can cause rain showers quite frequently even in January and in the first half of February. The driest months are March, April and May, when less than 10/15 mm per month fall.
Here is the average precipitation.
Average precipitation Oranjestad
Oranjestad J F M A M J J A S O N D Year
Prec. (mm) 39 21 9 12 16 19 32 26 46 78 94 82 472
Days 8 5 2 2 2 3 5 4 4 7 11 11 65

Aruba is a flat island, and due to the scarcity of rain and streams, the water is desalinated from the sea.
The sunshine amount is good all year round. The trade winds blow constantly, and the east coast is affected by strong ocean currents, while the western and southern coasts are more sheltered, and made of sandy beaches.
From June to November, but especially from August to October, there is the danger of tropical storms and hurricanes, which, however, at these latitudes are rare, because Aruba is located at the southern edge of the hurricane belt. Anyway, it's not impossible that hurricanes could hit Aruba, as happened with Hurricane Felix in September 2007.
Aruba is a constituent part of the Netherlands, with capital Oranjestad. It's catalogued together with Curaçao, Bonaire and some islands of Venezuela among the Leeward Antilles, namely those islands that compared with the rest of the Caribbean have a more arid climate, as evidenced by the vegetation consisting mainly of shrubs and cacti. The three islands that once belonged to the Netherlands Antilles (Aruba, Curaçao and Bonaire) are sometimes called ABC Islands.


For swimming, the sea is warm enough throughout the year: the water temperature goes from 26 °C from January to April, to 29 °C in October.
Sea temperature Aruba
Aruba J F M A M J J A S O N D
Sea (°C) 26 26 26 26 27 27 27 28 28 29 28 27

When to go

The best time to visit Aruba goes from mid-February to May, being the least rainy, and also outside of the period of hurricanes. The period from May to October is more sultry, even though the trade winds make the heat bearable. In the period from October to December, rainfall is moderate but not excessive, and at times this relatively rainy period continues until January or mid-February.

What to pack

All year round: tropics-friendly, light clothes made of cotton or linen, possibly a light raincoat for thunderstorms, especially from October to January; those who are sensitive to cold can bring a light sweatshirt for the evening. For the reef, equipment for snorkeling, water shoes or rubber soled shoes.

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