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August Weather in Vaiusu Samoa

Daily high temperatures are around 85°F, rarely falling below 83°F or exceeding 87°F. The lowest daily average high temperature is 85°F on August 10.

Daily low temperatures are around 75°F, rarely falling below 71°F or exceeding 78°F.

For reference, on April 12, the hottest day of the year, temperatures in Vaiusu typically range from 76°F to 87°F, while on July 18, the coldest day of the year, they range from 74°F to 85°F.

Average High and Low Temperature in August in Vaiusu

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 August. 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 August in Vaiusu

Average Hourly Temperature in August in VaiusuAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSepwarm
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.

Sorong, Indonesia (3,996 miles away) is the far-away foreign place with temperatures most similar to Vaiusu (view comparison).

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The month of August in Vaiusu experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 42% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 40% on August 24.

The clearest day of the month is August 24, with clear, mostly clear, or partly cloudy conditions 60% of the time.

For reference, on January 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 89%, while on August 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 60%.

Cloud Cover Categories in August in Vaiusu

Cloud Cover Categories in August in VaiusuAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepJan 711%Jan 711%Aug 156%Aug 156%Aug 3159%Aug 3159%Aug 1158%Aug 1158%Aug 2160%Aug 2160%clearmostly clearpartly cloudymostly cloudyovercast
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 Vaiusu, the chance of a wet day over the course of August is gradually increasing, starting the month at 19% and ending it at 22%.

For reference, the year's highest daily chance of a wet day is 60% on January 16, and its lowest chance is 18% on July 28.

Probability of Precipitation in August in Vaiusu

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 August in Vaiusu is gradually increasing, starting the month at 1.4 inches, when it rarely exceeds 3.4 inches or falls below 0.1 inches, and ending the month at 1.9 inches, when it rarely exceeds 4.2 inches or falls below 0.1 inches.

Average Monthly Rainfall in August in Vaiusu

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 August in Vaiusu, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 19 minutes, implying an average daily increase of 39 seconds, and weekly increase of 4 minutes, 32 seconds.

The shortest day of the month is August 1, with 11 hours, 31 minutes of daylight and the longest day is August 31, with 11 hours, 51 minutes of daylight.

Hours of Daylight and Twilight in August in Vaiusu

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 latest sunrise of the month in Vaiusu is 6:47 AM on August 1 and the earliest sunrise is 16 minutes earlier at 6:32 AM on August 31.

The earliest sunset is 6:19 PM on August 1 and the latest sunset is 3 minutes later at 6:22 PM on August 31.

Daylight saving time is not observed in Vaiusu during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:57 AM and sets 12 hours, 57 minutes later, at 6:54 PM, while on June 20, the shortest day of the year, it rises at 6:49 AM and sets 11 hours, 19 minutes later, at 6:08 PM.

Sunrise & Sunset with Twilight in August in Vaiusu

The solar day over the course of August. 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 August in Vaiusu

Solar Elevation and Azimuth in August in VaiusuAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSep
northeastsouthwest
Solar elevation and azimuth over the course of August 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 August 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 August in Vaiusu

Moon Rise, Set & Phases in August in VaiusuAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepJul 611:58 AMJul 611:58 AMJul 2111:18 PMJul 2111:18 PMAug 512:14 AMAug 512:14 AMAug 207:26 AMAug 207:26 AMSep 32:56 PMSep 32:56 PMSep 183:35 PMSep 183:35 PM6:52 AM6:52 AM6:19 PM6:19 PM5:58 PM5:58 PM7:21 AM7:21 AM6:28 AM6:28 AM6:03 PM6:03 PM5:45 PM5:45 PM6:49 AM6:49 AM6:27 AM6:27 AM6:27 PM6:27 PM6:27 PM6:27 PM6:52 AM6:52 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.
Aug 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
13%3:47 AMENE3:13 PMWNW-9:30 AMN239,047 mi
2
7%4:45 AMENE4:10 PMWNW-10:28 AMN241,298 mi
3
2%5:39 AMENE5:08 PMWNW-11:24 AMN243,502 mi
4
0%6:28 AMENE6:03 PMWNW-12:16 PMN245,617 mi
5
0%7:11 AMENE6:55 PMWNW-1:04 PMN247,576 mi
6
2%7:51 AMENE7:44 PMWNW-1:48 PMN249,290 mi
7
6%8:27 AME8:30 PMW-2:29 PMN250,652 mi
8
12%9:01 AME9:15 PMW-3:08 PMN251,540 mi
9
19%9:34 AME10:00 PMW-3:46 PMN251,838 mi
10
27%10:07 AME10:45 PMW-4:25 PMN251,444 mi
11
36%10:41 AMESE11:32 PMWSW-5:05 PMS250,287 mi
12
46%11:18 AMESE--5:48 PMS248,348 mi
13
50%-12:22 AMWSW12:00 PMESE6:36 PMS245,668 mi
14
66%-1:15 AMWSW12:46 PMESE7:27 PMS242,361 mi
15
76%-2:11 AMWSW1:38 PMESE8:23 PMS238,623 mi
16
85%-3:10 AMWSW2:36 PMESE9:23 PMS234,726 mi
17
92%-4:09 AMWSW3:38 PMESE10:24 PMS231,000 mi
18
97%-5:06 AMWSW4:42 PMESE11:23 PMS227,793 mi
19
99%-6:00 AMWSW5:45 PMESE--
20
100%-6:49 AMWSW6:47 PMESE12:19 AMS225,413 mi
21
99%-7:35 AMW7:46 PME1:13 AMN224,075 mi
22
95%-8:19 AMW8:44 PME2:04 AMN223,871 mi
23
89%-9:02 AMW9:42 PME2:53 AMN224,754 mi
24
80%-9:45 AMWNW10:40 PMENE3:43 AMN226,562 mi
25
69%-10:31 AMWNW11:40 PMENE4:35 AMN229,058 mi
26
50%-11:19 AMWNW-5:29 AMN231,975 mi
27
46%12:41 AMENE12:12 PMWNW-6:26 AMN235,065 mi
28
35%1:42 AMENE1:08 PMWNW-7:24 AMN238,121 mi
29
25%2:40 AMENE2:05 PMWNW-8:23 AMN240,999 mi
30
17%3:35 AMENE3:02 PMWNW-9:19 AMN243,610 mi
31
10%4:25 AMENE3:58 PMWNW-10:12 AMN245,912 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 Vaiusu is essentially constant during August, remaining within 0% of 98% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 22, the least muggy day of the year, there are muggy conditions 97% of the time.

Humidity Comfort Levels in August in Vaiusu

Humidity Comfort Levels in August in VaiusuAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSepAug 198%Aug 198%Aug 3198%Aug 3198%Aug 1198%Aug 1198%Aug 2198%Aug 2198%miserablemiserableoppressiveoppressivemuggymuggyhumidhumid
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 Vaiusu is essentially constant during August, remaining within 0.1 miles per hour of 14.1 miles per hour throughout.

For reference, on July 28, the windiest day of the year, the daily average wind speed is 14.3 miles per hour, while on March 8, the calmest day of the year, the daily average wind speed is 9.7 miles per hour.

Average Wind Speed in August in Vaiusu

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 Vaiusu throughout August is predominantly from the east, with a peak proportion of 85% on August 18.

Wind Direction in August in Vaiusu

Wind Direction in August in VaiusuAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JulSepeastsouthnorth
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).

Vaiusu 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 Vaiusu is essentially constant during August, remaining around 82°F throughout.

The lowest average surface water temperature during August is 82°F on August 15.

Average Water Temperature in August in Vaiusu

Average Water Temperature in August in VaiusuAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313179.5°F79.5°F80.0°F80.0°F80.5°F80.5°F81.0°F81.0°F81.5°F81.5°F82.0°F82.0°F82.5°F82.5°F83.0°F83.0°F83.5°F83.5°F84.0°F84.0°FJulSepAug 1582°FAug 1582°FAug 182°FAug 182°FAug 3182°FAug 3182°F
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 Vaiusu 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 August in Vaiusu

Time Spent in Various Temperature Bands and the Growing Season in August in VaiusuAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSep100%Aug 16100%Aug 16100%Jul 2100%Jul 2comfortablewarmhot
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 Vaiusu are rapidly increasing during August, increasing by 878°F, from 907°F to 1,785°F, over the course of the month.

Growing Degree Days in August in Vaiusu

Growing Degree Days in August in VaiusuAug1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131900°F900°F1,000°F1,000°F1,100°F1,100°F1,200°F1,200°F1,300°F1,300°F1,400°F1,400°F1,500°F1,500°F1,600°F1,600°F1,700°F1,700°F1,800°F1,800°FJulSepAug 1907°FAug 1907°FAug 311,785°FAug 311,785°FAug 111,199°FAug 111,199°FAug 211,491°FAug 211,491°F
The average growing degree days accumulated over the course of August, 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 Vaiusu is gradually increasing during August, rising by 0.7 kWh, from 5.0 kWh to 5.7 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in August in Vaiusu

Average Daily Incident Shortwave Solar Energy in August in VaiusuAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhJulSepAug 15.0 kWhAug 15.0 kWhAug 315.7 kWhAug 315.7 kWhAug 115.3 kWhAug 115.3 kWhAug 215.5 kWhAug 215.5 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 Vaiusu are -13.827 deg latitude, -171.793 deg longitude, and 30 ft elevation.

The topography within 2 miles of Vaiusu contains only modest variations in elevation, with a maximum elevation change of 367 feet and an average elevation above sea level of 72 feet. Within 10 miles contains only modest variations in elevation (3,760 feet). Within 50 miles also contains extreme variations in elevation (6,083 feet).

The area within 2 miles of Vaiusu is covered by water (66%) and trees (19%), within 10 miles by water (58%) and trees (35%), and within 50 miles by water (92%).

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

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Vaiusu.

For each station, the records are corrected for the elevation difference between that station and Vaiusu according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Vaiusu is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Vaiusu and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Vaiusu and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

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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