Casterton, Victoria
December 2025 Daily Weather Observations

Most observations from Casterton, pressure taken from Hamilton.

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Mo7.315.310.4  WSW5414:178.490 NNE171007.312.374 SW311008.7
2Tu7.318.71.0  WSW3315:5412.078 NNE131016.816.763 NNW151016.8
3We6.628.20.2  NNE4816:5415.872 N241016.126.833 N241013.8
4Th15.629.60  NNW6912:2522.238 N201009.327.932 N331007.7
5Fr7.324.50  SW3718:0514.183 ESE111010.523.644 WSW151007.0
6Sa8.516.90.4  WSW5216:2112.692 N131005.414.768 NNW281006.4
7Su3.619.21.0  NNW3714:0711.869 WNW91015.517.149 N171013.7
8Mo7.824.30.2  N5016:3014.873 N201011.323.046 N311009.3
9Tu9.621.50  SSW3312:1414.273 SW131017.220.442 SSW111017.6
10We10.021.90.2  ESE3516:5611.976 SE91020.519.156 SE91021.3
11Th8.123.70  ESE4807:2712.974 ESE311021.823.046 SE191018.8
12Fr7.731.40  ESE3323:0318.667 NNE131012.630.028 NE131009.4
13Sa13.924.80  SW4316:1416.777 SSE131008.924.350 S111006.7
14Su9.717.90.2  W5411:0614.376 N241008.915.552 SW351011.9
15Mo5.617.60  S4113:5212.771 SSW111019.816.747 SSW241022.0
16Tu5.124.30  E3712:2412.573 ESE151024.321.953 SE171021.2
17We7.633.60  SSW3516:3619.263 NE61019.132.228 NNE111016.5
18Th10.937.30  N4817:1026.244 N131013.136.517 WSW241010.1
19Fr18.030.50  SW4107:2120.563 NNW71008.228.946 SW171006.0
20Sa13.023.60  SSW3316:3713.966 SSW191009.122.447 SSE111007.1
21Su10.516.32.2  SW4319:5212.789 S171000.314.593 SE15999.6
22Mo8.220.221.8  WSW3914:4912.676 NW111011.017.953 N171010.7
23Tu10.320.40.8  NW3912:1413.770 W241015.518.746 W241014.9
24We11.419.10  W4412:1314.269 NNW151015.717.258 SW241015.9
25Th5.617.90  SSW4416:5112.064 SSW111021.215.360 SSW221020.4
26Fr7.819.70  SSE3708:3312.861 S221023.119.445 SSE201020.7
27Sa6.626.30  ESE4308:2013.871 SE221020.824.142 ESE171017.1
28Su9.632.50  ESE3114:0919.457 NE91017.431.622 N91016.4
29Mo12.537.00  N3910:4526.230 NNE171016.434.815 N221013.2
30Tu14.1 0     15.884 SSW221013.216.665 S241015.5
Statistics for the first 30 days of December 2025
Mean9.323.9      15.369  151014.322.147  191013.2
Lowest3.615.30     8.430 NE61000.312.315 #9999.6
Highest18.037.321.8  NNW69 26.292 ESE311024.336.593 SW351022.0
Total  38.4                 

IDCJDW3012.202512   Prepared at 05:37 UTC on Tuesday 30 December 2025

Source of data

Temperature, humidity, wind and rainfall observations are from Casterton {station 090182}. Evaporation and sunshine observations are from Mount Gambier Aero {station 026021}. Pressure observations are from Hamilton Airport {station 090173}.

Hamilton Airport is several kilometres southeast of Casterton, so the pressures will sometimes be markedly different.

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 Casterton, Victoria are also here on this web site:

Dec 25   Nov 25   Oct 25   Sep 25   Aug 25   Jul 25   Jun 25   May 25   
Apr 25   Mar 25   Feb 25   Jan 25   Dec 24   Nov 24   

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 Casterton, Victoria, look at the tables for Mount Gambier Aero, Hamilton Airport, Casterton Showgrounds or Hamilton Airport.

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.