Swanbourne, Western Australia
September 2025 Daily Weather Observations
Most observations from a site just under 1 km from the coast, combined with some from Mount Lawley.
Swanbourne, Western Australia
| Date | Day | Temps | Rain | Evap | Sun | Max wind gust | 9 am | 3 pm | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Max | Dir | Spd | Time | Temp | RH | Cld | Dir | Spd | MSLP | Temp | RH | Cld | Dir | Spd | MSLP | |||||
| °C | °C | mm | mm | hours | km/h | local | °C | % | 8th | km/h | hPa | °C | % | 8th | km/h | hPa | |||||
| 1 | Mo | 7.9 | 20.3 | 0 | SW | 20 | 16:21 | 16.3 | 77 | ENE | 6 | 1023.3 | 19.9 | 68 | WNW | 11 | 1021.0 | ||||
| 2 | Tu | 10.3 | 20.1 | 0 | SSW | 26 | 15:52 | 15.7 | 94 | ENE | 9 | 1023.9 | 18.9 | 71 | SW | 13 | 1020.6 | ||||
| 3 | We | 8.3 | 18.4 | 0 | SSW | 37 | 16:17 | 14.9 | 80 | SSE | 6 | 1018.4 | 17.9 | 80 | SSW | 24 | 1014.1 | ||||
| 4 | Th | 10.3 | 19.1 | 0.2 | NNW | 24 | 21:04 | 15.2 | 78 | SSW | 4 | 1015.7 | 18.2 | 75 | W | 11 | 1013.0 | ||||
| 5 | Fr | 12.5 | 17.0 | 0.8 | NNW | 63 | 18:10 | 15.5 | 92 | NNE | 20 | 1002.5 | 13.2 | 100 | WNW | 11 | 999.5 | ||||
| 6 | Sa | 10.4 | 16.1 | 33.6 | SW | 67 | 04:48 | 13.1 | 97 | SW | 35 | 1006.5 | 14.8 | 84 | SW | 35 | 1010.2 | ||||
| 7 | Su | 10.6 | 17.3 | 11.2 | SW | 50 | 17:20 | 13.1 | 91 | W | 24 | 1013.9 | 15.1 | 79 | SW | 31 | 1013.2 | ||||
| 8 | Mo | 6.2 | 14.6 | 7.8 | SSW | 35 | 12:16 | 10.9 | 84 | S | 6 | 1022.9 | 14.2 | 71 | SW | 20 | 1023.7 | ||||
| 9 | Tu | 6.6 | 16.1 | 0.2 | SSW | 33 | 14:50 | 12.6 | 80 | ESE | 11 | 1031.0 | 15.2 | 70 | SSW | 20 | 1028.6 | ||||
| 10 | We | 6.4 | 19.9 | 0 | SSE | 31 | 12:43 | 14.1 | 81 | E | 17 | 1031.1 | 17.2 | 69 | SSW | 19 | 1027.1 | ||||
| 11 | Th | 8.4 | 22.9 | 0 | NE | 33 | 10:25 | 16.0 | 68 | ENE | 19 | 1027.1 | 20.0 | 60 | SW | 13 | 1023.0 | ||||
| 12 | Fr | 11.3 | 26.0 | 0 | NNW | 50 | 12:56 | 19.4 | 48 | NE | 24 | 1019.2 | 21.9 | 60 | NNW | 22 | 1015.8 | ||||
| 13 | Sa | 15.9 | 21.4 | 0.2 | W | 44 | 14:26 | 19.3 | 94 | NW | 20 | 1012.9 | 17.3 | 100 | NW | 24 | 1011.2 | ||||
| 14 | Su | 14.5 | 17.6 | 12.0 | WNW | 93 | 09:13 | 16.8 | 91 | NW | 46 | 1006.7 | 16.4 | 77 | W | 37 | 1007.6 | ||||
| 15 | Mo | 12.0 | 16.9 | 5.0 | SW | 56 | 10:39 | 14.7 | 83 | SW | 28 | 1017.3 | 15.6 | 67 | SW | 22 | 1017.8 | ||||
| 16 | Tu | 7.6 | 18.4 | 0.2 | NW | 37 | 23:48 | 12.6 | 78 | NNE | 4 | 1023.1 | 18.0 | 66 | NW | 15 | 1019.8 | ||||
| 17 | We | 12.4 | 19.4 | 0.4 | WNW | 54 | 10:29 | 17.5 | 94 | NW | 24 | 1016.2 | 18.2 | 78 | WSW | 19 | 1015.5 | ||||
| 18 | Th | 12.6 | 19.0 | 7.2 | SW | 35 | 22:23 | 17.4 | 70 | SW | 15 | 1022.5 | 17.7 | 65 | SW | 17 | 1022.0 | ||||
| 19 | Fr | 12.6 | 19.0 | 2.0 | SW | 35 | 00:26 | 15.0 | 97 | SSE | 6 | 1027.1 | 18.1 | 80 | SW | 17 | 1025.7 | ||||
| 20 | Sa | 10.8 | 0.4 | 16.3 | 93 | E | 2 | 1027.8 | 18.1 | 92 | SSW | 19 | 1024.3 | ||||||||
| Statistics for the first 20 days of September 2025 | |||||||||||||||||||||
| Mean | 10.4 | 18.9 | 15.3 | 83 | 16 | 1019.5 | 17.3 | 75 | 20 | 1017.7 | |||||||||||
| Lowest | 6.2 | 14.6 | 0 | 10.9 | 48 | E | 2 | 1002.5 | 13.2 | 60 | # | 11 | 999.5 | ||||||||
| Highest | 15.9 | 26.0 | 33.6 | WNW | 93 | 19.4 | 97 | NW | 46 | 1031.1 | 21.9 | 100 | W | 37 | 1028.6 | ||||||
| Total | 81.2 | ||||||||||||||||||||
IDCJDW6121.202509 Prepared at 08:20 UTC on Saturday 20 September 2025
Source of data
Temperature, humidity, wind and rainfall observations are from Swanbourne {station 009215}. Pressure observations are from Perth Metro {station 009225}.
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 Swanbourne, Western Australia are also here on this web site:
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 Aug 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 Swanbourne, Western Australia, look at the tables for Swanbourne, Perth Metro, Fremantle, Perth Regional Office 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.
If you have any questions about this product, or you want any other weather or climate information, please contact us.