Rottnest Island, Western Australia
September 2025 Daily Weather Observations

DateDayTempsRainEvapSunMax wind gust9 am3 pm
MinMaxDirSpdTimeTempRHCldDirSpdMSLPTempRHCldDirSpdMSLP
°C°Cmmmmhourskm/hlocal°C%8thkm/hhPa°C%8thkm/hhPa
1Mo11.919.70  SW3117:5916.574 N111022.918.945 WNW171021.0
2Tu13.618.90.8  S3704:3815.684 NE151023.417.362 SSE151020.8
3We12.318.00  SSW5223:1615.762 E111018.317.262 SSW311014.5
4Th13.018.80  S4600:0315.066 SSE91015.717.854 W191013.1
5Fr14.916.91.2  NNW8009:1815.192 N501001.114.277 WNW20998.5
6Sa10.616.117.4  SSW9104:1212.582 SSW671006.115.054 SW521010.4
7Su11.116.54.2  SSW6723:4815.166 W311013.514.367 SW351013.4
8Mo8.214.37.6  S6302:4110.962 SE201022.513.854 S281023.8
9Tu9.715.30.2  SSE4820:5212.661 SE191030.914.951 S311028.7
10We11.218.00  SSE4121:1613.168 E201030.817.057 S191027.4
11Th11.120.90  NNE3710:4115.559 NNE261026.620.239 NW111023.1
12Fr14.822.40  NNE6908:5018.146 NNE481017.621.457 N371014.9
13Sa17.421.62.2  NW5912:4719.476 NW331012.417.491 NW331010.7
14Su13.817.87.8  W9613:5416.083 WNW541006.312.585 W651008.1
15Mo11.416.62.4  SW7001:4614.655 WSW391017.214.660 SW431017.9
16Tu10.718.11.2  NW5422:3811.881 NNE201022.517.047 WNW191019.7
17We11.619.31.0  NW6903:0117.377 NW431015.618.158 W301015.5
18Th12.918.37.4  SW5223:0916.358 SW281022.417.454 SW281022.2
19Fr13.317.52.2  SSW5003:5415.386 ESE111026.816.975 S171025.9
20Sa14.218.00  S4119:0316.283 SSE171027.617.482 SSW281024.7
21Su14.522.50  S4419:2817.875 ESE131028.319.677 S241026.6
22Mo15.223.80  ENE4308:3217.754 ENE281030.820.666 S221028.4
23Tu16.925.60  NE3707:3019.651 NE261030.421.371 S171027.3
24We15.226.20  NNE3509:5520.546 NNE221025.225.632 NW131022.2
25Th15.923.30  S3521:1319.970 N201019.121.468 SW191018.5
26Fr16.118.80  S4820:4317.667 SSE241021.517.167 SSW311021.2
27Sa14.119.10  SSE4801:0816.966 SE151022.218.565 SW241020.2
28Su15.019.20.4  SW5220:1917.783 WSW241018.018.065 SW311016.8
29Mo14.518.01.0  SW5401:0815.265 SSE201020.017.066 S241019.5
30Tu12.818.70  SSW4119:2017.064 E131021.917.957 SW171020.5
Statistics for September 2025
Mean13.319.3      16.168  251020.617.762  261019.2
Lowest8.214.30     10.946 SSE91001.112.532 NW11998.5
Highest17.426.217.4  W96 20.592 SSW671030.925.691 W651028.7
Total  57.0                 

IDCJDW6118.202509   Prepared at 13:03 UTC on Tuesday 7 October 2025

Source of data

Observations were drawn from Rottnest Island {station 009193}.

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 Rottnest Island, Western Australia are also here on this web site:

Oct 25   Sep 25   Aug 25   Jul 25   Jun 25   May 25   Apr 25   Mar 25   
Feb 25   Jan 25   Dec 24   Nov 24   Oct 24   Sep 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 Rottnest Island, Western Australia, look at the tables for Rottnest Island or Rottnest Island Lighthouse.

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.

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