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September Weather at Murrin Murrin Airport Western Australia, Australia

Daily high temperatures increase by 8°F, from 67°F to 75°F, rarely falling below 58°F or exceeding 86°F.

Daily low temperatures increase by 4°F, from 44°F to 48°F, rarely falling below 38°F or exceeding 57°F.

For reference, on January 20, the hottest day of the year, temperatures at Murrin Murrin Airport typically range from 64°F to 94°F, while on July 19, the coldest day of the year, they range from 41°F to 59°F.

Average High and Low Temperature in September at Murrin Murrin Airport

Average High and Low Temperature in September at Murrin Murrin AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303035°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°FAugOctSep 167°FSep 167°F44°F44°FSep 3075°FSep 3075°F48°F48°FSep 1170°FSep 1170°F46°F46°FSep 2172°FSep 2172°F47°F47°F
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 at Murrin Murrin Airport

Average Hourly Temperature in September at Murrin Murrin AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctvery coldcoldcoldcoolcomfortablewarm
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.

Villa Basilio Nievas, Argentina (8,224 miles away) and De Aar, Northern Cape, South Africa (5,662 miles) are the far-away foreign places with temperatures most similar to Murrin Murrin Airport (view comparison).

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The month of September at Murrin Murrin Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 9% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 7% on September 10.

The clearest day of the month is September 10, with clear, mostly clear, or partly cloudy conditions 93% of the time.

For reference, on April 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 34%, while on September 10, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 93%.

Cloud Cover Categories in September at Murrin Murrin Airport

Cloud Cover Categories in September at Murrin Murrin AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctApr 1266%Apr 1266%Sep 192%Sep 192%Sep 3090%Sep 3090%Sep 1193%Sep 1193%Sep 2193%Sep 2193%clearmostly clearovercastpartly cloudy
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. At Murrin Murrin Airport, the chance of a wet day over the course of September is essentially constant, remaining around 5% throughout.

For reference, the year's highest daily chance of a wet day is 14% on February 14, and its lowest chance is 3% on September 10.

Probability of Precipitation in September at Murrin Murrin Airport

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 at Murrin Murrin Airport is essentially constant, remaining about 0.3 inches throughout, and rarely exceeding 1.1 inches or falling below -0.0 inches.

The lowest average 31-day accumulation is 0.3 inches on September 12.

Average Monthly Rainfall in September at Murrin Murrin Airport

Average Monthly Rainfall in September at Murrin Murrin AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 in1.4 in1.4 inAugOctSep 120.3 inSep 120.3 inSep 10.3 inSep 10.3 inSep 300.3 inSep 300.3 inSep 210.3 inSep 210.3 in
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 at Murrin Murrin Airport, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 49 minutes, implying an average daily increase of 1 minute, 41 seconds, and weekly increase of 11 minutes, 46 seconds.

The shortest day of the month is September 1, with 11 hours, 32 minutes of daylight and the longest day is September 30, with 12 hours, 20 minutes of daylight.

Hours of Daylight and Twilight in September at Murrin Murrin Airport

Hours of Daylight and Twilight in September at Murrin Murrin AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 7 minSep 2212 hr, 7 mindaydaydaydaynightSep 111 hr, 32 minSep 111 hr, 32 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 at Murrin Murrin Airport is 6:06 AM on September 1 and the earliest sunrise is 34 minutes earlier at 5:32 AM on September 30.

The earliest sunset is 5:38 PM on September 1 and the latest sunset is 14 minutes later at 5:52 PM on September 30.

Daylight saving time is not observed at Murrin Murrin Airport during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 4:51 AM and sets 13 hours, 59 minutes later, at 6:49 PM, while on June 20, the shortest day of the year, it rises at 6:44 AM and sets 10 hours, 19 minutes later, at 5:03 PM.

Sunrise & Sunset with Twilight in September at Murrin Murrin Airport

Sunrise & Sunset with Twilight in September at Murrin Murrin AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMAugOct5:32 AM5:32 AMSep 305:52 PMSep 305:52 PM6:06 AM6:06 AMSep 15:38 PMSep 15:38 PM5:55 AM5:55 AMSep 115:43 PMSep 115:43 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 at Murrin Murrin Airport

Solar Elevation and Azimuth in September at Murrin Murrin AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct001010202020303040405050600001010202030303040405060
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 at Murrin Murrin Airport

Moon Rise, Set & Phases in September at Murrin Murrin AirportSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 47:14 PMAug 47:14 PMAug 202:26 AMAug 202:26 AMSep 39:56 AMSep 39:56 AMSep 1810:35 AMSep 1810:35 AMOct 32:50 AMOct 32:50 AMOct 177:27 PMOct 177:27 PM6:32 AM6:32 AM5:09 PM5:09 PM4:59 PM4:59 PM6:42 AM6:42 AM6:12 AM6:12 AM5:51 PM5:51 PM4:53 PM4:53 PM5:47 AM5:47 AM5:34 AM5:34 AM6:23 PM6:23 PM5:55 PM5:55 PM5:25 AM5:25 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%5:10 AMENE4:01 PMWNW-10:35 AMN248,223 mi
2
1%5:42 AMENE4:57 PMWNW-11:20 AMN249,814 mi
3
0%6:12 AMENE5:51 PMW-12:01 PMN251,060 mi
4
1%6:38 AME6:43 PMW-12:40 PMN251,929 mi
5
4%7:04 AME7:35 PMW-1:18 PMN252,367 mi
6
9%7:30 AME8:27 PMW-1:57 PMN252,305 mi
7
15%7:57 AMESE9:21 PMWSW-2:37 PMN251,667 mi
8
23%8:27 AMESE10:17 PMWSW-3:19 PMN250,383 mi
9
32%9:00 AMESE11:14 PMWSW-4:04 PMN248,412 mi
10
41%9:39 AMESE--4:54 PMN245,751 mi
11
50%-12:14 AMWSW10:24 AMESE5:47 PMN242,463 mi
12
62%-1:13 AMWSW11:17 AMESE6:44 PMN238,690 mi
13
73%-2:11 AMWSW12:18 PMESE7:43 PMN234,658 mi
14
82%-3:04 AMWSW1:24 PMESE8:41 PMN230,675 mi
15
91%-3:51 AMWSW2:34 PMESE9:37 PMN227,095 mi
16
97%-4:33 AMWSW3:44 PMESE10:31 PMN224,277 mi
17
100%-5:11 AMWSW4:53 PME11:22 PMN222,521 mi
18
100%-5:47 AMW6:02 PME--
19
100%-6:21 AMW7:11 PME12:13 AMN222,015 mi
20
96%-6:56 AMWNW8:21 PMENE1:04 AMN222,800 mi
21
90%-7:34 AMWNW9:31 PMENE1:57 AMN224,760 mi
22
81%-8:16 AMWNW10:41 PMENE2:53 AMN227,652 mi
23
71%-9:04 AMWNW11:49 PMENE3:52 AMN231,154 mi
24
60%-9:57 AMWNW-4:53 AMN234,924 mi
25
50%12:51 AMENE10:55 AMWNW-5:53 AMN238,654 mi
26
38%1:45 AMENE11:56 AMWNW-6:51 AMN242,106 mi
27
28%2:32 AMENE12:56 PMWNW-7:44 AMN245,124 mi
28
19%3:11 AMENE1:55 PMWNW-8:34 AMN247,628 mi
29
12%3:45 AMENE2:52 PMWNW-9:19 AMN249,595 mi
30
6%4:15 AMENE3:46 PMW-10:00 AMN251,041 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 at Murrin Murrin Airport is essentially constant during September, remaining around 0% throughout.

For reference, on February 14, the muggiest day of the year, there are muggy conditions 7% of the time, while on August 15, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in September at Murrin Murrin Airport

Humidity Comfort Levels in September at Murrin Murrin AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 10%Sep 10%Sep 300%Sep 300%Sep 110%Sep 110%Sep 210%Sep 210%drydrycomfortablecomfortable
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 at Murrin Murrin Airport is gradually increasing during September, increasing from 10.3 miles per hour to 11.2 miles per hour over the course of the month.

For reference, on January 16, the windiest day of the year, the daily average wind speed is 12.6 miles per hour, while on May 16, the calmest day of the year, the daily average wind speed is 9.2 miles per hour.

Average Wind Speed in September at Murrin Murrin Airport

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

The wind direction at Murrin Murrin Airport during September is predominantly out of the west from September 1 to September 12 and the east from September 12 to September 30.

Wind Direction in September at Murrin Murrin Airport

Wind Direction in September at Murrin Murrin AirportWESep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOctwestsoutheastnorth
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).

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).

While it does not do so every year, freezing temperatures are seen at Murrin Murrin Airport over some winters. The day least likely to be in the growing season is July 7, with a 50% chance.

Time Spent in Various Temperature Bands and the Growing Season in September at Murrin Murrin Airport

Time Spent in Various Temperature Bands and the Growing Season in September at Murrin Murrin AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%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 1690%Aug 1590%Aug 15very coldcoldcoolcomfortablewarmhot
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 at Murrin Murrin Airport are increasing during September, increasing by 274°F, from 239°F to 513°F, over the course of the month.

Growing Degree Days in September at Murrin Murrin Airport

Growing Degree Days in September at Murrin Murrin AirportSep112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030200°F200°F250°F250°F300°F300°F350°F350°F400°F400°F450°F450°F500°F500°F550°F550°F600°F600°FAugOctSep 1239°FSep 1239°FSep 30513°FSep 30513°FSep 11317°FSep 11317°FSep 21412°FSep 21412°F
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 at Murrin Murrin Airport is increasing during September, rising by 1.3 kWh, from 5.6 kWh to 6.9 kWh, over the course of the month.

Average Daily Incident Shortwave Solar Energy in September at Murrin Murrin Airport

Average Daily Incident Shortwave Solar Energy in September at Murrin Murrin AirportSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhAugOctSep 15.6 kWhSep 15.6 kWhSep 306.9 kWhSep 306.9 kWhSep 116.1 kWhSep 116.1 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 Murrin Murrin Airport are -28.710 deg latitude, 121.886 deg longitude, and 1,545 ft elevation.

The topography within 2 miles of Murrin Murrin Airport contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 1,553 feet. Within 10 miles also contains only modest variations in elevation (443 feet). Within 50 miles contains only modest variations in elevation (1,434 feet).

The area within 2 miles of Murrin Murrin Airport is covered by sparse vegetation (90%), within 10 miles by sparse vegetation (92%), and within 50 miles by sparse vegetation (83%) and grassland (11%).

This report illustrates the typical weather at Murrin Murrin Airport, 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

Murrin Murrin Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.

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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