Petrol prices in Perth.
Perth petrol prices are locked for 24 hours under FuelWatch – and tomorrow’s prices are published at 2:30pm today. FuelNow shows both: today’s guaranteed price and, from 2:30pm, tomorrow’s next to it, so you can decide tonight whether to fill up now or wait for the morning.
Perth prices now
As at , the cheapest Unleaded 91 in Perth is 223.3 c/L – the median across 408 reporting stations is 235.9 c/L.
| Station | U91 (c/L) | Last verified |
|---|---|---|
| Burk Alkimos | 223.3 | |
| Costco Perth Airportmembers only | 224.7 | |
| Costco Casuarinamembers only | 224.7 | |
| United Tapping | 225.3 | |
| Shell High Wycombe | 225.5 | |
| Liberty Tapping | 225.5 | |
| Liberty Banksia Grove | 225.5 | |
| Liberty Beckenham | 225.5 | |
| Liberty Gosnells | 225.5 | |
| Atlas Fuel Ascot | 225.9 |
FuelWatch prices are locked until 6am; tomorrow’s prices appear from 2:30pm. “Last verified” is when FuelWatch last confirmed each price. This board refreshes every few minutes; the app tracks every station to the minute.
Are petrol prices in Perth going up or down?
Steady this week – Perth’s Unleaded 91 median has moved less than 2 c/L over the past seven days and sits at 239.9 c/L. Over the past month the median has swung between 225.9 and 249.9 c/L – today’s price is in the middle of that swing.
Diesel in Perth now
As at , the cheapest diesel in Perth is 249.3 c/L – the median across 200 reporting stations is 269.5 c/L.
| Station | Diesel (c/L) | Last verified |
|---|---|---|
| Vibe Kwinana OPT | 249.3 | |
| Vibe Ascot | 249.3 | |
| Atlas Fuel Kwinana | 249.5 | |
| Atlas Fuel Ascot | 249.5 | |
| Liberty Naval Base | 249.5 |
The five cheapest diesel stations in view – the app carries every diesel price in Perth, plus premium diesel.
How Perth pricing works
FuelWatch is Australia’s oldest price scheme. Every WA station’s price locks at 6am for 24 hours – what you see is guaranteed until 6am tomorrow, not a snapshot that might change before you arrive.
At 2:30pm each day, FuelWatch publishes tomorrow’s prices. FuelNow shows tomorrow’s price alongside today’s – PetrolSpy and MotorMouth don’t show them at all.
Timing your fill-up in Perth
Perth’s prices are locked daily and fully frozen – no intraday movement at all – so the fill-up-now-or-wait question has an exact answer here. From 2:30pm, FuelNow shows you today and tomorrow side by side – that is the whole decision.
Questions
What is the cheapest petrol in Perth today?
As at 7:03 am AWST on 17 October 2026, the cheapest Unleaded 91 in Perth is 223.3 c/L at Burk Alkimos. The median across 408 reporting stations is 235.9 c/L, and the gap between the cheapest and most expensive station is 42.7 c/L. The FuelNow app shows every Perth station live – free, no ads, no account.
Where do Perth petrol prices come from?
FuelWatch – the official government fuel price scheme covering Western Australia. FuelNow reads the scheme directly: station-reported prices only, no crowd-sourcing, no estimates.
How fresh are Perth petrol prices?
WA locks every station’s price at 6am for 24 hours under FuelWatch, so the price you see is guaranteed until 6am tomorrow. Tomorrow’s prices are published at 2:30pm and FuelNow shows them the same afternoon.
Every fuel type
E10, Unleaded 91, 95, 98, Diesel, Premium Diesel, E85 and LPG – pick yours once and the whole Perth map re-prices around it.
Where the data comes from, in detail: the data sources page · Beyond the city: petrol prices in regional WA · Other cities: petrol prices across Australia · The August rise: the August 2026 price rise, tracked station by station