Portland, Victoria
May 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
1Fr 27.30     18.446 N131020.826.8323N171017.2
2Sa17.526.00  NNE5212:4720.2477N191012.822.7497N241009.0
3Su10.618.110.0  NNW4613:0912.695 N131008.716.263 N201007.4
4Mo12.315.90.4     13.7858NNW281004.814.3868W351006.6
5Tu11.016.410.2  WSW4400:3313.0818WSW191020.815.6706W221021.0
6We11.216.70.6     13.2968NW241018.911.4938WSW331017.0
7Th5.913.79.4  SW6502:5410.8693SW261025.211.9728WSW241025.0
8Fr10.214.82.2  WSW5600:3112.7958WSW261025.913.0958SW201026.6
9Sa11.515.54.0  SSW2401:3012.4958SSW91029.813.7928SSW91028.6
10Su11.216.50.2  E3012:4413.489 E151032.015.867 SE151030.9
11Mo10.616.61.2  E2413:4812.796 NE21034.115.968 E151032.2
12Tu7.820.20  ESE1915:2010.497 NE71034.719.469 ESE111032.1
13We8.320.90.2  NE2211:2510.898 NNE71033.719.3734E91031.2
14Th9.020.90  NE2011:4410.5907NNE71030.518.7711NNE91026.8
15Fr10.419.60  NNE2612:4714.8788NNE131024.119.2638NNE131020.0
16Sa14.616.80.2  N3909:5715.2838N201016.116.8828N191013.9
17Su12.317.02.8  S1913:2614.3968SSW61019.416.678 S91019.0
18Mo4.716.60.2  NNE2009:467.91008N111019.615.970 W131016.6
19Tu7.915.91.4  WSW3915:2613.1818SW171018.314.4686WSW221018.2
20We11.316.42.4  SW3911:5913.4801WSW171023.314.6738SW191024.7
21Th8.217.40.2  WSW2014:3111.288 N71031.216.863 W61029.7
22Fr3.416.00  NNE1713:076.398 NNE91028.314.373 N71025.2
23Sa6.314.00  ENE2017:279.0947NNE71025.414.0837ENE71022.6
24Su9.017.70  NE2612:3311.7908ENE111021.417.2687ENE111018.6
25Mo11.316.00.4  E3919:3212.9968E91020.215.2928ESE131019.4
26Tu12.815.97.8  E3900:3014.5918E191021.515.8918ESE191019.8
27We13.616.01.0  ESE3500:4014.0918SE131021.815.3808SE191020.1
28Th4.814.80  WNW2812:099.0998N111019.213.7848W171015.5
29Fr9.017.04.8  NW3914:5110.11008N151011.215.3774NW221007.0
30Sa10.116.22.4  WNW6314:4412.0893NNW131005.811.8868WNW281003.6
31Su9.814.48.2  W5705:2212.159 W281009.613.2678W281010.6
Statistics for May 2026
Mean9.917.3      12.5867 141021.616.0746 171019.9
Lowest3.413.70     6.3461NE21004.811.4321W61003.6
Highest17.527.310.2  SW65 20.21008#281034.726.8958W351032.2
Total  70.2                 

IDCJDW3068.202605   Prepared at 16:01 UTC on Thursday 2 July 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.

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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:

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