When is the best day to buy petrol in Perth?

Across Perth, the better buying window depends on where the local price cycle sits, not a fixed weekday. Check whether prices are rising or easing, then compare nearby station prices and update times before a large fill.

How many stations have reported prices in Perth?

FuelRadar Australia lists reported prices at 132 stations across Perth, using available state reporting, retailer and station data.

Is it worth driving to a cheaper suburb in Perth?

Multiply the price difference by the litres you expect to buy, then compare that gross saving with the return distance, fuel used and time. A cheaper station already on your route needs less saving to make sense than a special trip across Perth.

Perth Premium Diesel prices today

Service stations

Cheapest Premium Diesel in Perth

Reported prices, lowest first. The first station is 20.9c/L below the city average.

City avg 245.6

Saving estimates update for each station.

#	Station	Today	Tomorrow	Vs city avg
1	CO Costco Perth Airport WA Updated1h	224.7c/LSave $12.54 on 60L vs city avg	Tomorrow224.7 c/LNo change	-20.9-20.9 cents below the city average
2	AT Atlas Fuel Ascot WA Updated1h	231.9c/LSave $8.22 on 60L vs city avg	Tomorrow231.9 c/LNo change	-13.7-13.7 cents below the city average
3	LI Liberty Cannington WA Updated1h	232.2c/LSave $8.04 on 60L vs city avg	Tomorrow232.2 c/LNo change	-13.4-13.4 cents below the city average
4	SO Solo Morley WA Updated1h	232.2c/LSave $8.04 on 60L vs city avg	Tomorrow232.2 c/LNo change	-13.4-13.4 cents below the city average
5	S2 S24 Forrestfield WA Updated1h	232.9c/LSave $7.62 on 60L vs city avg	Tomorrow232.9 c/LNo change	-12.7-12.7 cents below the city average
6	S2 S24 Guildford WA Updated1h	232.9c/LSave $7.62 on 60L vs city avg	Tomorrow232.9 c/LNo change	-12.7-12.7 cents below the city average

1
CO
Costco Perth Airport
WA
Updated1h
224.7c/L
Save $12.54 on 60L vs city avg-20.9-20.9 cents below the city average
Tomorrow224.7 c/LNo change
2
AT
Atlas Fuel Ascot
WA
Updated1h
231.9c/L
Save $8.22 on 60L vs city avg-13.7-13.7 cents below the city average
Tomorrow231.9 c/LNo change
3
LI
Liberty Cannington
WA
Updated1h
232.2c/L
Save $8.04 on 60L vs city avg-13.4-13.4 cents below the city average
Tomorrow232.2 c/LNo change
4
SO
Solo Morley
WA
Updated1h
232.2c/L
Save $8.04 on 60L vs city avg-13.4-13.4 cents below the city average
Tomorrow232.2 c/LNo change
5
S2
S24 Forrestfield
WA
Updated1h
232.9c/L
Save $7.62 on 60L vs city avg-12.7-12.7 cents below the city average
Tomorrow232.9 c/LNo change
6
S2
S24 Guildford
WA
Updated1h
232.9c/L
Save $7.62 on 60L vs city avg-12.7-12.7 cents below the city average
Tomorrow232.9 c/LNo change

Showing 6 of 12 stations.

Current reported range · Premium Diesel

Perth price range today

Lowest, average and highest reported prices use the same fuel grade and area. Check a station’s report time before making a detour.

Lowest: 224.7 c/L
Average: 245.6 c/L
Highest: 256.9 c/L

Price spread

32.2 c/L

Difference between the lowest and highest reports shown.

Difference on a 60-litre fill

$19.32

Before allowing for the fuel used or time spent reaching another station.

132 stations checked · updated 17 Aug 2026 · source: FuelWatch

FuelWatch WA

Today and tomorrow in Perth

Official WA next-day prices from 2:30pm, in force from 6am tomorrow.

StationFuelTodayTomorrowMove

Source: FuelWatch WA official next-day prices. Tomorrow prices apply from 6:00am in Western Australia.

Timing · Weekly price cycle

Should you fill up in Perth?

Sunday had the lowest recent weekday average

Over the last 30 days, Sunday had the lowest average in this sample and Friday had the highest. This can change; check today’s station prices.

See the price cycle

Cycle low You are herePeak

Up to 32.2c/L between the cheapest and dearest station today.

By fuel type

Perth prices by grade

Reported low, average and high prices across 132 stations.

Swipe across to compare every column.

Fuel	Low	Avg	High	Stations	Cheapest at
Unleaded 91	182.7c	194.0c	204.9c	131	Costco Perth Airport
LPG (Autogas)	140.9c	153.4c	163.5c	9	S24 Forrestfield
Premium 95	201.5c	210.2c	219.9c	112	Atlas Fuel Ascot
Premium 98	202.7c	219.2c	229.9c	130	Costco Perth Airport
Diesel	228.9c	239.2c	253.9c	30	Atlas Fuel Ascot
Premium Diesel	224.7c	245.6c	256.9c	132	Costco Perth Airport

Cheaper suburbs

Cheapest suburbs around Perth

Suburb averages, lowest first. Open a suburb to check its stations, report times and distance.

Fuel advice

Comparing fuel prices in Perth

Compare the reported price, update time and distance before choosing a station in Perth.

132 stations across 6 fuel types are included in Perth, WA. Check the report time and use the map for distance before you drive.

Before you choose a station

Service stations in Perth can change prices during the day, so the city average is a guide rather than a bowser price. The reported premium diesel average is 245.6 c/L, and the lowest report is 20.9c/L below it. Check the station update time and distance before travelling for the difference.

Choose the fuel type your vehicle uses, compare stations within the distance you are willing to drive and check when each price was reported. Use a station on your normal route unless the price difference covers the extra travel. Brands reporting in Perth include Costco, Atlas, Liberty. Compare individual stations because a brand average can hide local differences.

Is a detour around Perth worth it?

The gap between the lowest and highest reported premium diesel price in Perth is 32.2c/L. Prices may differ by suburb as well as brand. For a detour, allow for the extra kilometres and check that the lower report is recent.

Lower suburb averages currently include Forrestfield, West Swan, Bassendean and Maida Vale. Open a suburb page to compare its service stations, report times and distance. A suburb average is not the price at every bowser.

Data updated 17 Aug, 12:22 pm AEST. Source: FuelWatch. Based on 132 stations. A city average is not a bowser price. Check the fuel grade, report time and final price at the station.

Next steps

Plan your next fill in Perth

Open the map, check the latest timing advice or compare another nearby area.

Suburbs

Perth suburbs

Choose a suburb to compare its station reports, local average and update times.

Search Perth suburbs

172 suburbs in this directory.

Frequently asked

Perth fuel questions

The lowest listed Premium Diesel price in Perth is 224.7 c/L, compared with a city average of 245.6 c/L. Check the station update time and compare nearby options before you fill up.

Perth pricing includes prices reported through FuelWatch where available.

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