Climate and monthly weather forecastCas Ariba, Aruba
Climate and monthly weather forecast
The climate of Cas Ariba
The predominant climate of Cas Ariba, as classified by the Köppen climate classification system, falls under the category of a tropical savanna climate. The strategic geographical positioning of Cas Ariba enables it to experience temperatures that show very little variation, making it warm all year round.Throughout the twelve-month period, average high temperatures fluctuate modestly, from 26.4°C (79.5°F) in February to 29°C (84.2°F) in September, showing that the Cas Ariba climate is not only warm but also remarkably consistent. The difference in average low temperatures is equally slight, ranging from 25.8°C (78.4°F) in February to 28.3°C (82.9°F) in September. The city experiences a high relative humidity level year-round, with percentages ranging from 78% in November to 83% in May.
The amount of rainfall varies considerably across the months, with September reaching a peak average of 57mm (2.24") and June exhibiting the least amount of rainfall, averaging at 15mm (0.59"). The number of days with notable rainfall also varies significantly, from 10.6 days in June to 23.9 in November. An interesting point to note is that while September has the highest average rainfall, the number of rainy days in this month is not the maximum.
The best time to visit Cas Ariba
Based on the analyzed climatological data, the best time to visit Cas Ariba would be during the spring and early summer months, from April to June. During this period, the city experiences relatively lower levels of rainfall - as low as 15mm (0.59") in June and humidity levels are at an annual low. Another advantage of visiting during this period is enjoying close to 12.8 hours of daylight and up to 9.2 hours of sunshine, enhancing the experience of sight-seeing and other outdoor activities.The worst time to visit Cas Ariba
According to the climatological data, the period from September to November might not be the best time to visit Cas Ariba. During these months, the city experiences its highest rainfall - with September and November reaching 57mm (2.24") and 89mm (3.5") respectively. Along with high rainfall, November also sees the maximum number of rainy days - 23.9 days, which might hinder outdoor activities and travel plans.Spring weather in Cas Ariba
Springtime in Cas Ariba, ranging from March to May, brings moderately high temperatures averaging between 26.6°C (79.9°F) to 27.7°C (81.9°F). The lowest rainfall of the year can be observed in April, averaging at 16mm (0.63") across 11.5 days. The daylight period extends up to 12.4 hours to 12.7 hours, with an average of 8.4 hours to 8.6 hours of sunshine.Summer weather in Cas Ariba
The Summer in Cas Ariba, from June to August, is characterized by high temperatures with averages from 27.8°C (82°F) to 28.3°C (82.9°F), the highest in the year. Rainfall begins to increase from June, with August seeing 24mm (0.94") of rainfall. However, daylight hours peak, providing up to 12.9 hours of daylight and a high of 9.5 hours of sunshine in August.Autumn weather in Cas Ariba
Autumn is the wettest season in Cas Ariba, as September to November sees the highest rainfall, peaking at 89mm (3.5") in November. Temperatures remain high during Autumn, averaging between 28.3°C (82.9°F) in September to 27.6°C (81.7°F) in November. The highest numbers of rainy days fall in this season, peaking at 23.9 days in November.Winter weather in Cas Ariba
Winter in Cas Ariba, from December to February, is mild. Temperatures range from a low of 25.8°C (78.4°F) in February to a high of 26.7°C (80.1°F) in December. Rainfall reduces substantially during this season, going as low as 17mm (0.67") in February. The average hours of daylight decrease slightly to 11.4 hours in December and 11.7 hours in February, with corresponding sunshine hours declining to 8.2 - 8.6 hours.Weather in January
Beginning the year in Cas Ariba, Aruba, January offers warm conditions, with already high daily sunlight. Though it is the initial month, it is certainly no slouch when it comes to humidity. The record for January indicates a peak in rainfall of 27mm (1.06") for this month. Weather in January »Weather in February
Transitioning to February, the average conditions in Cas Ariba do not exhibit drastic changes. The relatively consistent weather pattern makes it easy to predict and plan for outdoor activities. February records show one of the lowest rainfall levels throughout the year, dropping to 17mm (0.67"). Weather in February »Weather in March
March witnesses a continuation of Cas Ariba's steady climatic trend. It's business as usual in terms of temperatures, wind speed, and even the sunlight duration. The data reveals a marginal increase in rainfall to 17mm (0.67") in March, making it on par with February's wetness. Weather in March »Weather in April
As the year pushes into April, residents of Cas Ariba can start observing some slight fluctuations in the weather. However, adjustments in temperature and rainfall are barely discernible, thereby avoiding any drastic shifts in local routines. Weather in April »Weather in May
May in Cas Ariba is another month of steady weather, with scarcely any deviations from the preceding months. A slight increase in temperature starts to usher in the tropical summer, exhibiting the city's comforting consistency. In terms of precipitation, May witnesses a significant spike in rainfall to 27mm (1.06"), matching the January level. Weather in May »Weather in June
Greeted by the summer, June in Cas Ariba boasts longer sunshine hours, with moderate temperatures. The city continues to benefit from a consistent climatic pattern, nullifying the need for significant wardrobes or activity shifts. Weather in June »Weather in July
July stands as a beacon of the sunny summer months in Cas Ariba, promoting copious amounts of sunshine. While temperatures continue to hover near their peak, they still remain hospitable for day-to-day activities. This month marks the onset of progressively lesser rainfall, with an average of 18mm (0.71"). Weather in July »Weather in August
Continuing the consistency shown in the preceding months, August in Cas Ariba sees a nearly uniform weather pattern. The month demonstrates a peak in average low temperatures, creating a warm climate round the clock. The rainfall for this month records a moderate increase to 24mm (0.94"). Weather in August »Weather in September
As Cas Ariba glides into September, the city starts to witness slight variations in its routinely predictable weather. The temperature range tightens, resulting in less fluctuation from day to night. This month's rainfall substantially surges to 57mm (2.24"), marking it as the start of a significantly wet period for the city. Weather in September »Weather in October
October in Cas Ariba marks the nadir of the annual rainfall, with a whopping 110mm (4.33") precipitation, making it the rainiest month. The weather transitions into a more significant disparity between wet and dry days. Yet, the city holds onto substantial daylight hours, offering solace amidst a stormy cycle. Weather in October »Weather in November
The second last month of the year, November, brings a moderate easing of rain in Cas Ariba, witnessed by a fall to 89mm (3.5") precipitation. As the year edges towards its end, the fluctuations in temperatures start to mellow, presenting cooler nights. Weather in November »Weather in December
December, the final act in Cas Ariba's weather calendar, brings back echoes of January's conditions. The city finishes the year maintaining its typical patterns, characterized by heavy sunshine and moderate temperatures. Compared to November, December records a reduction in rainfall, winding down to 55mm (2.17"). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Cas Ariba, Aruba
The warmest month (with the highest average high temperature) is September (29°C).
The month with the lowest average high temperature is February (26.4°C).
The month with the highest average low temperature is September (28.3°C).
The coldest month (with the lowest average low temperature) is February (25.8°C).
Average pressure
Cas Ariba, Aruba
- Average pressure in January:
1012.6mbar - Average pressure in February:
1012.5mbar - Average pressure in March:
1012.2mbar - Average pressure in April:
1011.4mbar - Average pressure in May:
1011.2mbar - Average pressure in June:
1011.7mbar
- Average pressure in July:
1011.9mbar - Average pressure in August:
1010.8mbar - Average pressure in September:
1010.1mbar - Average pressure in October:
1009.6mbar - Average pressure in November:
1009.7mbar - Average pressure in December:
1011.4mbar
The month with the highest atmospheric pressure is January (1012.6mbar).
The month with the lowest atmospheric pressure is October (1009.6mbar).
Average wind speed
Cas Ariba, Aruba
- Average wind speed in January:
33.1km/h - Average wind speed in February:
33.5km/h - Average wind speed in March:
33.6km/h - Average wind speed in April:
33.9km/h - Average wind speed in May:
34.5km/h - Average wind speed in June:
37.5km/h
- Average wind speed in July:
36.2km/h - Average wind speed in August:
33.4km/h - Average wind speed in September:
29.1km/h - Average wind speed in October:
26.7km/h - Average wind speed in November:
26.1km/h - Average wind speed in December:
32.4km/h
The windiest month (with the highest average wind speed) is June (37.5km/h).
The calmest month (with the lowest average wind speed) is November (26.1km/h).
Average humidity
Cas Ariba, Aruba
The month with the highest relative humidity is May (83%).
The month with the lowest relative humidity is November (78%).
Average rainfall
Cas Ariba, Aruba
The wettest month (with the highest rainfall) is October (110mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days
Cas Ariba, Aruba
- Average rainfall days in January:
16.2 days - Average rainfall days in February:
12.3 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
11.5 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
10.6 days
- Average rainfall days in July:
12.2 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
15.5 days - Average rainfall days in October:
20.9 days - Average rainfall days in November:
23.9 days - Average rainfall days in December:
22.6 days
The month with the highest number of rainy days is November (23.9 days).
The month with the least rainy days is June (10.6 days).
Average daylight / Average sunshine
Cas Ariba, Aruba
- Average daylight in January:
11h and 30min - Average daylight in February:
11h and 42min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 24min - Average daylight in May:
12h and 42min - Average daylight in June:
12h and 54min
- Average daylight in July:
12h and 48min - Average daylight in August:
12h and 30min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 48min - Average daylight in November:
11h and 36min - Average daylight in December:
11h and 24min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in January:
8h and 36min - Average sunshine in February:
8h and 54min - Average sunshine in March:
8h and 18min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
9h and 12min - Average sunshine in August:
9h and 30min - Average sunshine in September:
9h and 24min - Average sunshine in October:
8h and 42min - Average sunshine in November:
8h and 24min - Average sunshine in December:
8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 8h and 12min).
Average sunshine days
Cas Ariba, Aruba
- Average sunshine days in January:
6.8 days - Average sunshine days in February:
6.8 days - Average sunshine days in March:
8 days - Average sunshine days in April:
8.9 days - Average sunshine days in May:
10.7 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
10.5 days - Average sunshine days in October:
5.8 days - Average sunshine days in November:
2.1 days - Average sunshine days in December:
3.3 days
The month with the most sunshine days is August (14.8 days).
The month with the least sunshine days is November (2.1 days).
Average UV index
Cas Ariba, Aruba
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
Cas Ariba, Aruba
The months with the most cloud cover are March and November (Cloud cover 42).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility
Cas Ariba, Aruba
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





