Portland, Victoria
September 2026 Daily Weather Observations

Most observations from Portland, evaporation and sunshine measured at Mount Gambier.

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Tu7.818.20  NNW6112:3915.2587N311015.013.9887NW331012.1
2We8.713.98.6  NW4313:1312.2758WNW201014.312.7858NW221011.7
3Th10.214.92.4  W6705:3312.8631W411011.814.2668W351015.1
4Fr7.616.80  N4622:1111.1778N151016.815.5708NNW281012.3
5Sa11.015.60.8  WNW7614:4512.9828WNW351002.510.1948WNW371004.2
6Su8.415.22.6  WSW5000:2411.9898WSW111021.614.5708W221022.2
7Mo9.514.32.8  SW4304:1812.0684S171029.513.3582S151030.7
8Tu2.114.50.2  WSW4622:4110.8751WNW91028.614.1673W281025.9
9We8.713.90.6  SSW4600:5311.1563S221033.912.0688SSW191035.5
10Th5.114.30  WSW2609:5811.6783SW151039.314.075 SW111038.0
11Fr 16.70     12.493 SE91035.516.040 ESE131032.1
12Sa6.321.90  NNE2411:5713.081 NNE131027.121.642 NNW111022.5
13Su10.422.10  N4411:4617.656 N191016.320.6542NNW221013.3
14Mo10.615.50.6  WNW5014:0612.993 NW191019.714.279 WNW311019.5
15Tu7.913.33.8  SW5214:2011.270 SW301028.410.377 WSW241031.8
16We8.7 0.2     11.1658S151037.512.063 S151037.4
17Th8.613.80.2  W3111:3310.5668SW131036.012.566 WSW201032.8
18Fr3.820.50  NW5715:1113.762 NNW241026.020.145 WNW371022.9
19Sa13.722.30.2  WNW6713:2619.338 NW391021.720.046 WNW391020.2
20Su10.924.70  WNW8112:5921.926 NNW371008.916.877 WNW521009.1
21Mo8.813.92.2  WSW5000:2210.6471SSW191026.610.9658SSW151028.4
22Tu0.714.40.4  SE2615:0610.766 NNE91032.313.055 ESE131030.6
23We3.517.70  E2816:4811.278 NE91031.017.260 E171027.1
24Th 21.60     16.4695N171024.118.8668WNW111022.2
25Fr13.917.00.6  WNW3306:2015.3928W201024.814.4948SSW91024.3
26Sa10.214.50.6  SE4317:3312.4788SSE111030.312.1738SE281032.4
27Su8.113.60  SE4116:5011.0558SE241038.012.7646SE241035.9
28Mo5.418.70  E3910:1111.471 E241034.914.5732E201030.8
29Tu9.922.70  NNE4609:1418.3575N261022.621.3617N191018.6
30We16.021.60  WNW4309:1318.2645NNW91017.020.8733NNW171015.4
Statistics for September 2026
Mean8.417.2      13.4685 201025.115.1676 221023.8
Lowest0.713.30     10.5261#91002.510.1402SSW91004.2
Highest16.024.78.6  WNW81 21.9938W411039.321.6948WNW521038.0
Total  26.8                 

IDCJDW3068.202609   Prepared at 04:12 UTC on Thursday 8 October 2026

Source of data

Temperature, humidity, wind, pressure, cloud and rainfall observations are from Portland Airport {station 090171}. Evaporation and sunshine observations are from Mount Gambier Aero {station 026021}.

Some cloud observations are from automated equipment; these are somewhat different to those made by a human observer and may not appear every day.

You should read the important information in these notes.

Other formats

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Other times and other places

The last 14 months of Daily Weather Observations for Portland, Victoria are also here on this web site:

Oct 26   Sep 26   Aug 26   Jul 26   Jun 26   May 26   Apr 26   Mar 26   
Feb 26   Jan 26   Dec 25   Nov 25   Oct 25   Sep 25   

Daily Weather Observations are also routinely prepared for hundreds of other locations in Victoria and across Australia. To get other months or places not on this web site, contact us.

Climate statistics

If you are after long-term averages relevant to Portland, Victoria, look at the tables for Portland Airport, Portland or Mount Gambier Aero.

Maps and tables of average conditions for locations across Australia are also available.

More information

If you are using these pages, you are deemed to have understood the important information in these notes. They cover how the data are obtained, how they are processed, and what each column means.

If you have any questions about this product, or you want any other weather or climate information, please contact us.