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July Weather in Aruba Aruba

Daily high temperatures are around 89°F, rarely falling below 87°F or exceeding 92°F. The lowest daily average high temperature is 89°F on July 4.

Daily low temperatures are around 80°F, rarely falling below 78°F or exceeding 82°F. The lowest daily average low temperature is 80°F on July 7.

For reference, on September 4, the hottest day of the year, temperatures in Aruba typically range from 81°F to 91°F, while on January 20, the coldest day of the year, they range from 77°F to 85°F.

Average High and Low Temperature in July in Aruba

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in July in Aruba

Average Hourly Temperature in July in ArubaJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJunAugwarmwarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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The month of July in Aruba experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 70% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 68% on July 17.

The clearest day of the month is July 17, with clear, mostly clear, or partly cloudy conditions 32% of the time.

For reference, on October 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 81%, while on January 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 53%.

Cloud Cover Categories in July in Aruba

Cloud Cover Categories in July in ArubaJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAugOct 719%Oct 719%Jul 129%Jul 129%Jul 3131%Jul 3131%Jul 1131%Jul 1131%Jul 2132%Jul 2132%mostly clearpartly cloudymostly cloudyovercastclear
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Aruba, the chance of a wet day over the course of July is essentially constant, remaining around 5% throughout.

For reference, the year's highest daily chance of a wet day is 20% on November 24, and its lowest chance is 2% on March 21.

Probability of Precipitation in July in Aruba

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during July in Aruba is essentially constant, remaining about 0.3 inches throughout, and rarely exceeding 1.0 inches.

Average Monthly Rainfall in July in Aruba

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of July in Aruba, the length of the day is essentially constant. The shortest day of the month is July 31, with 12 hours, 40 minutes of daylight and the longest day is July 1, with 12 hours, 51 minutes of daylight.

Hours of Daylight and Twilight in July in Aruba

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month in Aruba is 6:18 AM on July 1 and the latest sunrise is 8 minutes later at 6:26 AM on July 31.

The latest sunset is 7:09 PM on July 9 and the earliest sunset is 3 minutes earlier at 7:06 PM on July 31.

Daylight saving time is not observed in Aruba during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:15 AM and sets 12 hours, 52 minutes later, at 7:07 PM, while on December 21, the shortest day of the year, it rises at 6:56 AM and sets 11 hours, 24 minutes later, at 6:20 PM.

Sunrise & Sunset with Twilight in July in Aruba

The solar day over the course of July. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in July in Aruba

Solar Elevation and Azimuth in July in ArubaJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMJunAug001010202020303040405050506060707080800001010202030303040405050606060707080
northeastsouthwest
Solar elevation and azimuth over the course of July 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for July 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in July in Aruba

Moon Rise, Set & Phases in July in ArubaJul112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJunAugJun 68:38 AMJun 68:38 AMJun 219:09 PMJun 219:09 PMJul 56:58 PMJul 56:58 PMJul 216:18 AMJul 216:18 AMAug 47:14 AMAug 47:14 AMAug 192:26 PMAug 192:26 PM6:04 AM6:04 AM7:29 PM7:29 PM7:04 PM7:04 PM6:37 AM6:37 AM5:49 AM5:49 AM7:14 PM7:14 PM6:48 PM6:48 PM6:27 AM6:27 AM6:29 AM6:29 AM7:31 PM7:31 PM7:11 PM7:11 PM7:14 AM7:14 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Jul 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
22%2:14 AMENE3:16 PMWNW-8:43 AMN232,135 mi
2
13%3:02 AMENE4:16 PMWNW-9:37 AMN233,607 mi
3
6%3:54 AMENE5:17 PMWNW-10:34 AMN235,403 mi
4
2%4:50 AMENE6:17 PMWNW-11:33 AMN237,504 mi
5
0%5:49 AMENE7:14 PMWNW-12:32 PMN239,851 mi
6
1%6:47 AMENE8:06 PMWNW-1:28 PMN242,337 mi
7
3%7:44 AMENE8:53 PMWNW-2:20 PMN244,813 mi
8
8%8:37 AMENE9:34 PMWNW-3:07 PMN247,109 mi
9
15%9:27 AMENE10:12 PMWNW-3:51 PMN249,044 mi
10
22%10:13 AME10:48 PMW-4:32 PMS250,448 mi
11
31%10:58 AME11:21 PMW-5:10 PMS251,180 mi
12
40%11:42 AME11:55 PMW-5:49 PMS251,136 mi
13
50%12:27 PME--6:28 PMS250,268 mi
14
60%-12:30 AMW1:13 PMESE7:09 PMS248,591 mi
15
69%-1:07 AMWSW2:02 PMESE7:54 PMS246,186 mi
16
79%-1:47 AMWSW2:54 PMESE8:43 PMS243,203 mi
17
87%-2:33 AMWSW3:50 PMESE9:37 PMS239,856 mi
18
93%-3:24 AMWSW4:49 PMESE10:35 PMS236,412 mi
19
98%-4:22 AMWSW5:49 PMESE11:36 PMS233,164 mi
20
99%-5:23 AMWSW6:48 PMESE--
21
100%-6:27 AMWSW7:43 PMESE12:38 AMS230,395 mi
22
99%-7:30 AMWSW8:34 PMESE1:37 AMS228,332 mi
23
95%-8:30 AMWSW9:20 PMESE2:33 AMS227,108 mi
24
89%-9:28 AMW10:04 PME3:24 AMS226,749 mi
25
80%-10:24 AMW10:46 PME4:14 AMS227,185 mi
26
70%-11:19 AMW11:29 PME5:02 AMS228,282 mi
27
50%-12:14 PMWNW-5:50 AMS229,875 mi
28
46%12:12 AMENE1:11 PMWNW-6:40 AMN231,801 mi
29
35%12:59 AMENE2:10 PMWNW-7:32 AMN233,925 mi
30
25%1:50 AMENE3:10 PMWNW-8:28 AMN236,148 mi
31
16%2:44 AMENE4:09 PMWNW-9:26 AMN238,408 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Aruba is essentially constant during July, remaining around 100% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 7, the least muggy day of the year, there are muggy conditions 100% of the time.

Humidity Comfort Levels in July in Aruba

Humidity Comfort Levels in July in ArubaJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JunAugJul 1100%Jul 1100%Jul 31100%Jul 31100%Jul 11100%Jul 11100%Jul 21100%Jul 21100%miserablemiserableoppressiveoppressive
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Aruba is decreasing during July, decreasing from 21.0 miles per hour to 19.9 miles per hour over the course of the month.

For reference, on June 18, the windiest day of the year, the daily average wind speed is 21.5 miles per hour, while on October 20, the calmest day of the year, the daily average wind speed is 15.3 miles per hour.

Average Wind Speed in July in Aruba

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Aruba throughout July is predominantly from the east, with a peak proportion of 100% on July 1.

Wind Direction in July in Aruba

Wind Direction in July in ArubaJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JunAugeast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Aruba is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Aruba is essentially constant during July, remaining around 81°F throughout.

The lowest average surface water temperature during July is 81°F on July 7.

Average Water Temperature in July in Aruba

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Aruba are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in July in Aruba

Time Spent in Various Temperature Bands and the Growing Season in July in ArubaJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JunAug100%Jul 16100%Jul 16100%Jul 2100%Jul 2warmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Aruba are very rapidly increasing during July, increasing by 994°F, from 5,753°F to 6,746°F, over the course of the month.

Growing Degree Days in July in Aruba

Growing Degree Days in July in ArubaJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031315,600°F5,600°F5,800°F5,800°F6,000°F6,000°F6,200°F6,200°F6,400°F6,400°F6,600°F6,600°F6,800°F6,800°FJunAugJul 15,753°FJul 15,753°FJul 316,746°FJul 316,746°FJul 116,084°FJul 116,084°FJul 216,415°FJul 216,415°F
The average growing degree days accumulated over the course of July, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Aruba is essentially constant during July, remaining around 5.3 kWh throughout.

Average Daily Incident Shortwave Solar Energy in July in Aruba

Average Daily Incident Shortwave Solar Energy in July in ArubaJul11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhJunAugJul 15.3 kWhJul 15.3 kWhJul 315.3 kWhJul 315.3 kWhJul 115.3 kWhJul 115.3 kWhJul 215.3 kWhJul 215.3 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Aruba are 12.500 deg latitude, -69.967 deg longitude, and 0 ft elevation.

The topography within 2 miles of Aruba is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Aruba is covered by grassland (48%), artificial surfaces (18%), trees (16%), and shrubs (14%), within 10 miles by water (82%), and within 50 miles by water (91%).

This report illustrates the typical weather in Aruba, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Queen Beatrix International Airport page.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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