Aruba’s climate in May is pleasantly warm with very little rain. Days are sunny, with a mild, near-constant trade wind that keeps visitors comfortable. This popular island sits in the southern Caribbean near the coast of Venezuela, and its climate is drier than many of its Caribbean neighbors.
Temperatures In May
Aruba’s average high in May is around 89°F (32°C), with an average low around 79°F (26°C). Temperatures stay fairly consistent throughout the year on the island.
June through November tend to run a bit warmer than May, with daytime temperatures occasionally topping 90°F. The heat is most noticeable inland, away from the coastal breeze, and beach sand can get uncomfortably hot underfoot midday.
January through March are the coolest months, with highs generally staying around 79°F.
Because of Aruba’s dry, semi-arid climate, temperatures swing more across the day than in humid climates. Overnight and early morning tend to be coolest, often around 82°F, warming to around 87°F by midday. Aruba’s steady trade winds help take the edge off even the warmest afternoons.
Aruba’s low rainfall means the heat is a dry heat, which makes it feel less oppressive than the humidity levels in some neighboring islands. Sea temperatures stay fairly steady year-round, generally in the high 70s to low 80s°F; in May, the average is around 81°F.
Rainfall In May
Aruba sees very little rain year-round. Rainfall picks up somewhat during hurricane season, with the wettest months falling between October and December. May is a dry month, with rain on only a handful of days and any showers typically brief and light rather than prolonged downpours. When rain does fall, it’s more likely earlier in the day than in the evening.
Thunderstorms are uncommon in May, and on the rare occasion they occur, they tend to happen in the early morning.
Aruba is part of the “ABC islands,” along with Bonaire and Curaçao, the three westernmost islands of the Leeward Antilles. Their location in the southern Caribbean puts them well south of the main hurricane belt, so direct hurricane hits are rare.
Clouds In May
May tends to bring fairly steady, moderate cloud cover to Aruba, without the dramatic swings some other months see. Skies stay mostly clear to partly cloudy on most days, making May a reliably sunny month overall.
Precipitation In May
A wet day is typically defined as one with at least 0.04 inches of rain. In Aruba, the chance of a wet day in May stays low and fairly consistent throughout the month, in keeping with May being one of the drier months on the island.
Sun In May
Day length changes very little in Aruba during May, since the island sits close to the equator. The shortest day of the month is around May 1, with about 12 hours 35 minutes of daylight; the longest is around May 31, with about 12 hours 49 minutes.
Sunrise in early May is around 6:19 AM, shifting to around 6:13 AM by the end of the month. Sunset moves from around 6:54 PM on May 1 to around 7:02 PM on May 31. Aruba does not observe Daylight Saving Time, so these times stay consistent with the rest of the year’s pattern rather than shifting with clock changes elsewhere.
For reference, on the longest day of the year (around June 21), the sun rises around 6:16 AM and sets almost 13 hours later, around 7:07 PM; on the shortest day of the year (around December 21), it rises around 6:56 AM and sets about 11.5 hours later, around 6:19 PM.
Moon In May
Moon phases and moonrise/moonset times shift throughout May as usual. For exact dates of new and full moons and moonrise/moonset times during your trip, check a current lunar calendar closer to your travel dates.
Humidity In May
Humidity is usually measured by dew point rather than temperature alone, since dew point reflects how much moisture is actually in the air; a lower dew point feels drier, and a higher one feels muggier. Dew point tends to shift more slowly than temperature, so a muggy day is often followed by a muggy night even after the temperature drops.
Aruba’s dew point stays relatively steady through May, and thanks to the island’s constant trade winds, humidity generally feels less oppressive here than the raw numbers might suggest on a still day elsewhere.
Wind In May
Aruba is known for its steady trade winds, and this section reflects the region-wide average wind speed and direction measured at about 10 meters above ground. Local conditions can vary with terrain, and instantaneous wind speed and direction vary more than hourly averages suggest.
Average wind speed in Aruba climbs gradually through May, generally moving from around 19-20 mph to around 20-21 mph over the course of the month. June tends to be the windiest month on the island, with October generally the calmest.
Water Temperature In May
Aruba sits along open ocean water, and surface water temperature stays fairly steady through May, generally close to 81°F, varying by about a degree or two across the month.
Hey everyone! I’m Luciana, a travel writer from Colombia. I focus on places I know and love — mostly Colombia, Central America, and North America.
I’m all about discovering those hidden gems that don’t always make it into the guidebooks — think street food stalls, quiet little towns, underrated hiking trails, and the kind of real-life moments that truly capture what a place is all about.
Whether I’m wandering through vibrant markets in Guatemala, cruising across the deserts of the U.S., or hiking the Andes, I try to keep it real and useful — no fluff, just the good stuff.
When I’m not off exploring or writing about it, you’ll probably find me sipping too much coffee, editing photos, or dreaming up my next trip.
Let’s keep discovering and traveling smarter — one trip at a time.