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September Weather in Solosolo Samoa

Daily high temperatures are around 85°F, rarely falling below 82°F or exceeding 87°F.

Daily low temperatures are around 75°F, rarely falling below 72°F or exceeding 78°F.

For reference, on April 13, the hottest day of the year, temperatures in Solosolo typically range from 76°F to 87°F, while on July 18, the coldest day of the year, they range from 75°F to 84°F.

Average High and Low Temperature in September in Solosolo

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 September. 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 September in Solosolo

Average Hourly Temperature in September in SolosoloSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctwarm
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.

Scarborough, Trinidad & Tobago (7,797 miles away); Georgetown, Guyana (7,911 miles); and Sorong, Indonesia (4,007 miles) are the far-away foreign places with temperatures most similar to Solosolo (view comparison).

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The month of September in Solosolo experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 41% to 56%.

The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 59% 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 59%.

Cloud Cover Categories in September in Solosolo

Cloud Cover Categories in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctSep 159%Sep 159%Sep 3044%Sep 3044%Sep 1155%Sep 1155%Sep 2150%Sep 2150%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 Solosolo, the chance of a wet day over the course of September is very rapidly increasing, starting the month at 22% and ending it at 36%.

For reference, the year's highest daily chance of a wet day is 61% on January 16, and its lowest chance is 18% on July 28.

Probability of Precipitation in September in Solosolo

Probability of Precipitation in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%55%55%AugOctSep 122%Sep 122%Sep 3036%Sep 3036%Sep 1126%Sep 1126%Sep 2132%Sep 2132%rain
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 September in Solosolo is rapidly increasing, starting the month at 1.9 inches, when it rarely exceeds 4.3 inches or falls below 0.1 inches, and ending the month at 3.6 inches, when it rarely exceeds 6.9 inches or falls below 0.9 inches.

Average Monthly Rainfall in September in Solosolo

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 September in Solosolo, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 22 minutes, implying an average daily increase of 46 seconds, and weekly increase of 5 minutes, 19 seconds.

The shortest day of the month is September 1, with 11 hours, 51 minutes of daylight and the longest day is September 30, with 12 hours, 13 minutes of daylight.

Hours of Daylight and Twilight in September in Solosolo

Hours of Daylight and Twilight in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2312 hr, 7 minSep 2312 hr, 7 mindaydaydaydaynightSep 111 hr, 51 minSep 111 hr, 51 min
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 Solosolo is 6:30 AM on September 1 and the earliest sunrise is 21 minutes earlier at 6:09 AM on September 30.

The earliest sunset is 6:21 PM on September 1 and the latest sunset is 59 seconds later at 6:22 PM on September 30.

Daylight saving time is not observed in Solosolo during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:56 AM and sets 12 hours, 57 minutes later, at 6:53 PM, while on June 20, the shortest day of the year, it rises at 6:49 AM and sets 11 hours, 18 minutes later, at 6:07 PM.

Sunrise & Sunset with Twilight in September in Solosolo

Sunrise & Sunset with Twilight in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAugOct6:09 AM6:09 AMSep 306:22 PMSep 306:22 PM6:30 AM6:30 AMSep 16:21 PMSep 16:21 PM6:23 AM6:23 AMSep 116:22 PMSep 116:22 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of September. 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 September in Solosolo

Solar Elevation and Azimuth in September in SolosoloSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct
northeastsouthwest
Solar elevation and azimuth over the course of September 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 September 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 September in Solosolo

Moon Rise, Set & Phases in September in SolosoloSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 512:14 AMAug 512:14 AMAug 207:26 AMAug 207:26 AMSep 32:56 PMSep 32:56 PMSep 183:35 PMSep 183:35 PMOct 37:50 AMOct 37:50 AMOct 1812:27 AMOct 1812:27 AM6:27 AM6:27 AM6:02 PM6:02 PM5:45 PM5:45 PM6:49 AM6:49 AM6:26 AM6:26 AM6:26 PM6:26 PM6:26 PM6:26 PM6:51 AM6:51 AM6:08 AM6:08 AM6:39 PM6:39 PM6:04 PM6:04 PM6:08 AM6:08 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.
Sep 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
4%5:09 AMENE4:49 PMWNW-11:00 AMN247,892 mi
2
1%5:50 AMENE5:39 PMWNW-11:45 AMN249,545 mi
3
0%6:26 AMENE6:26 PMW-12:26 PMN250,857 mi
4
1%7:01 AME7:11 PMW-1:06 PMN251,799 mi
5
3%7:34 AME7:56 PMW-1:44 PMN252,322 mi
6
8%8:07 AME8:41 PMW-2:23 PMN252,358 mi
7
14%8:40 AMESE9:27 PMWSW-3:02 PMN251,832 mi
8
21%9:16 AMESE10:15 PMWSW-3:44 PMS250,672 mi
9
30%9:55 AMESE11:06 PMWSW-4:29 PMS248,830 mi
10
39%10:39 AMESE--5:18 PMS246,293 mi
11
50%-12:00 AMWSW11:27 AMESE6:11 PMS243,113 mi
12
60%-12:57 AMWSW12:21 PMESE7:08 PMS239,414 mi
13
71%-1:54 AMWSW1:20 PMESE8:06 PMS235,408 mi
14
81%-2:51 AMWSW2:22 PMESE9:05 PMS231,389 mi
15
89%-3:45 AMWSW3:24 PMESE10:02 PMS227,707 mi
16
96%-4:36 AMWSW4:26 PMESE10:56 PMS224,723 mi
17
99%-5:23 AMWSW5:26 PME11:48 PMN222,753 mi
18
100%-6:08 AMW6:26 PME--
19
100%-6:51 AMW7:25 PME12:39 AMN222,010 mi
20
97%-7:36 AMW8:25 PMENE1:30 AMN222,562 mi
21
91%-8:22 AMWNW9:27 PMENE2:23 AMN224,322 mi
22
83%-9:11 AMWNW10:30 PMENE3:18 AMN227,065 mi
23
73%-10:04 AMWNW11:33 PMENE4:16 AMN230,479 mi
24
62%-11:00 AMWNW-5:16 AMN234,224 mi
25
50%12:34 AMENE11:58 AMWNW-6:16 AMN237,980 mi
26
40%1:31 AMENE12:56 PMWNW-7:14 AMN241,497 mi
27
30%2:23 AMENE1:53 PMWNW-8:08 AMN244,603 mi
28
21%3:09 AMENE2:46 PMWNW-8:58 AMN247,205 mi
29
13%3:50 AMENE3:36 PMWNW-9:44 AMN249,271 mi
30
7%4:27 AMENE4:23 PMW-10:26 AMN250,811 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 Solosolo is essentially constant during September, remaining within 1% of 99% 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 September in Solosolo

Humidity Comfort Levels in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 198%Sep 198%Sep 30100%Sep 30100%Sep 1199%Sep 1199%Sep 2199%Sep 2199%miserablemiserableoppressiveoppressivemuggymuggy
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 Solosolo is decreasing during September, decreasing from 14.3 miles per hour to 13.3 miles per hour over the course of the month.

For reference, on July 28, the windiest day of the year, the daily average wind speed is 14.4 miles per hour, while on March 8, the calmest day of the year, the daily average wind speed is 9.8 miles per hour.

The highest daily average wind speed during September is 14.4 miles per hour on September 4.

Average Wind Speed in September in Solosolo

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 Solosolo throughout September is predominantly from the east, with a peak proportion of 88% on September 20.

Wind Direction in September in Solosolo

Wind Direction in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOcteastnorthsouth
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).

Solosolo 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 Solosolo is essentially constant during September, remaining around 82°F throughout.

Average Water Temperature in September in Solosolo

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 Solosolo 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 September in Solosolo

Time Spent in Various Temperature Bands and the Growing Season in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOct100%Sep 16100%Sep 16comfortablewarmhot
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 Solosolo are rapidly increasing during September, increasing by 857°F, from 1,807°F to 2,664°F, over the course of the month.

Growing Degree Days in September in Solosolo

The average growing degree days accumulated over the course of September, 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 Solosolo is essentially constant during September, remaining within 0.1 kWh of 5.8 kWh throughout.

The highest average daily incident shortwave solar energy during September is 6.0 kWh on September 19.

Average Daily Incident Shortwave Solar Energy in September in Solosolo

Average Daily Incident Shortwave Solar Energy in September in SolosoloSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhAugOctSep 196.0 kWhSep 196.0 kWhSep 15.7 kWhSep 15.7 kWhSep 305.9 kWhSep 305.9 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 Solosolo are -13.875 deg latitude, -171.642 deg longitude, and 69 ft elevation.

The topography within 2 miles of Solosolo contains very significant variations in elevation, with a maximum elevation change of 1,719 feet and an average elevation above sea level of 263 feet. Within 10 miles contains very significant variations in elevation (3,760 feet). Within 50 miles also contains extreme variations in elevation (3,760 feet).

The area within 2 miles of Solosolo is covered by water (56%) and trees (38%), within 10 miles by water (65%) and trees (30%), and within 50 miles by water (95%).

This report illustrates the typical weather in Solosolo, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Solosolo.

For each station, the records are corrected for the elevation difference between that station and Solosolo 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 Solosolo is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Solosolo 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 Solosolo 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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