Onslow, Western Australia
December 2025 Daily Weather Observations

Observations from the airport.

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Mo21.735.60  WNW4314:5728.468 NNW151014.328.972 WNW351010.6
2Tu25.136.30  WNW4113:3334.044 W71011.732.454 WNW281009.4
3We25.539.40  WNW5215:1436.233 S171010.830.963 WNW391008.4
4Th25.938.30  W5715:5032.841 SW191010.732.154 W431008.2
5Fr22.634.90  WNW5014:3429.748 SW201012.133.241 WNW411008.4
6Sa22.938.20  WNW4815:0730.637 S261010.633.341 WNW371007.1
7Su24.343.50  W5415:2832.535 SSW221009.638.233 WNW331005.0
8Mo23.743.30  WSW5416:2834.429 S241007.936.836 W371003.7
9Tu25.143.20  WSW5017:5633.126 S261007.642.39 SSW261004.5
10We23.839.60  SW5220:4032.238 SSW191009.336.835 W371005.7
11Th23.739.70  WNW5015:4131.544 S241008.734.546 WNW351005.8
12Fr23.038.30  WNW5015:3330.247 SSW191008.234.742 WNW351004.4
13Sa22.431.40  W4618:5229.853 WSW131007.229.566 WNW311004.7
14Su21.933.20  WNW4415:3529.948 SW71008.030.261 WNW331005.4
15Mo23.834.20  WNW5014:5532.241 WSW91008.230.951 WNW391005.4
16Tu24.133.50  WNW4417:3130.655 WNW171009.531.356 WNW301006.3
17We24.036.00  NW4413:2531.648 SSW151009.731.656 NW311006.7
18Th26.434.90  NW4315:1930.766 NNE111008.631.962 NNW311005.3
19Fr25.634.90  WNW4817:2631.769 NW131008.432.560 WNW301005.8
20Sa27.039.80  WNW4415:0631.849 WSW111007.134.851 WNW351003.1
21Su28.743.30  WSW5718:0239.820 SSE281004.440.631 W391001.1
22Mo26.635.80  N5013:4432.768 NNE261005.334.752 N331003.5
23Tu26.338.20  W5017:4634.836 S171005.634.149 WNW301003.4
24We26.735.10  WNW4814:0633.466 NE191006.530.372 WNW351003.9
25Th26.136.70  SW5221:5132.153 WSW131007.234.647 WNW351003.5
26Fr24.044.50  SSW5012:2132.437 SSW261006.743.511 SSW311002.9
27Sa25.440.50  SSW5011:5832.032 S311007.939.911 SW301005.5
28Su21.339.60  W5614:1027.942 SSW301008.136.431 WNW351004.0
29Mo23.635.60  WNW4813:2830.336 SSW241005.532.346 WNW371003.0
30Tu24.4 0     30.570 NE281006.9      
Statistics for the first 30 days of December 2025
Mean24.537.8      32.045  191008.434.246  341005.3
Lowest21.331.40     27.920 #71004.428.99 SSW261001.1
Highest28.744.50  #57 39.870 S311014.343.572 W431010.6
Total  0.0                 

IDCJDW6103.202512   Prepared at 03:20 UTC on Tuesday 30 December 2025

Source of data

Observations were drawn from Onslow Airport {station 005017}.

The airport is approximately 4 kilometres from the coast and therefore averages slightly higher maximum and slightly lower minimum temperatures than the town. Other conditions, such as winds, can also differ significantly at times.

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 Onslow, Western Australia 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 Western Australia 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 Onslow, Western Australia, look at the tables for Onslow Airport or Onslow.

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.