Fill fully near the low
When Perth is near a cycle low, fill the tank rather than topping up. The point of timing is to push out your next purchase past the next reset.
Best day to buy fuel
Best day to buy fuel in Perth
148.7c
163.1 c/LCity avg
SaturdayBest window
184Stations
Timing · Weekly cycle
Should you fill up in Perth?
Usually cheapest on Saturday
Prices typically peak on Wednesday (+5.2¢) and bottom on Saturday. Consider filling early in the week.
See the price cycleCycle low You are herePeak
Up to 14.4c/L between the cheapest and average station in Perth.
How to use the cycle
Time your fill-up in Perth
The weekday rule is only a starting point. What matters is where the Perth market sits in its cycle.
Top up only after a reset
Right after a sharp reset, a full fill-up is usually poor value unless you urgently need it. Buy only enough to get through, then check again as prices ease.
Combine timing with suburb choice
When the spread is wide, pair the best buy day with a cheaper suburb on the Perth city page to compound the saving.
Perth timing
When to buy fuel in Perth
The best day to buy fuel in Perth
In Perth, usually cheapest on saturday is usually when prices are closer to the bottom of the local cycle. Check the price cycle before a full tank, and confirm reported prices and update times on the Perth city page.
Perth's price cycle
Perth typically follows a weekly cycle. Prices typically peak on Wednesday (+5.2¢) and bottom on Saturday. Consider filling early in the week.
Plan your next fill
Tools for Perth drivers
Pair the timing on this page with reported Perth prices and the forecast.
Perth fuel prices
Reported prices, cheaper suburbs and the fill / wait / hold verdict for Perth.
Petrol price cycles
See how the cycle plays out across capitals — peak and trough timing to combine with suburb choice.
Perth price forecast
See whether Perth prices look likely to rise, fall or hold over the next week.
Common questions
Best day to buy fuel in Perth — FAQ
Over the last 30 days of local data, Perth prices have usually been lowest on Saturday and highest on Wednesday. The cycle position matters more than the weekday alone, so check the cycle phase before a full tank.