Willetton Diesel price forecast
As of Fri 13 Nov, Willetton diesel averages 261.7 c/L, and FuelRadar estimates it will fall about 4.1 c/L to 257.6 c/L by Fri 20 Nov.
Diesel
Likely to fall
Estimate only: prices may edge down about 4.1 c/L by Fri 20 Nov.
More about this price
Past 7-day estimates missed by about 4.5 c/L on average, only slightly less than assuming prices stay the same (4.7 c/L).
How sure: a week ahead, the estimate has been off by 4.5 c/L on average over 50,257 checks.
Perth prices are typical right now
The city average of 261.7 c/L sits inside the usual range of 249.0 to 274.2 c/L for the last 91 days. That is higher than on 36% of the last 91 days.
Capital cities
Each capital's latest city daily average and its call; each row opens that city's forecast. City daily averages, not station prices. Averages dated Fri 13 Nov.
Cheapest Diesel near Willetton now
Updated
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More about the Willetton forecast
Willetton Diesel forecast explained
Where prices sit
Willetton uses the Perth Diesel outlook.
What usually happens next
Diesel prices do not follow a regular cycle, so the estimate follows the recent trend in Perth's daily averages, blended with the latest five-day change in wholesale prices. That puts it down about 4.1 c/L by .
What could change it
Wholesale and crude signals: wholesale diesel in Perth fell 10.0 c/L over the five days to , and Brent crude rose 2.8% to US$95.20 a barrel. The estimate already blends in that wholesale change.
Diesel forecast chart and daily figures
Diesel: last 30 days and the next 7
Diesel: last 30 days and the next 7. The forecast moves from 261.7 c/L on 13 Nov 2026 to 257.6 c/L on 20 Nov 2026.
Source: FuelRadar (fuelradar.com.au)
Reported city averages to Fri 13 Nov, then the FuelRadar Perth estimate dated Fri 13 Nov with its likely range shaded, the Perth city average for Willetton.
First lower estimate: Sat 14 Nov, about 260.4 c/L (1.3 below today).
Day by day
Each day’s likely range and estimate, with the change from today’s 261.7 c/L (dashed line).
- likely 259.5 to 262.7 c/L260.4
- likely 257.8 to 265.0 c/L259.5
- likely 255.9 to 267.2 c/L258.5
- likely 254.3 to 269.5 c/L258.3
- likely 252.6 to 271.8 c/L258.0
- likely 251.0 to 274.2 c/L257.8
- likely 249.4 to 276.6 c/L257.6
When is fuel cheapest in Perth?
Perth has had no active price cycle lately (the last restoration started Sat 19 Sept): its Diesel prices are following wholesale costs and the recent trend, so they tend to move a week or two after the terminal gate price.
On Fri 6 Nov the national terminal gate (wholesale) price was 257.0 c/L and the Perth city average 271.1 c/L, 14.1 c/L above it.
No weekday was the cheapest in most of the last 11 full weeks to : the Diesel weekday averages in Perth were within 0.7 c/L of each other once the overall price movement is removed.
| Cheapest weekday | No set dayNo day led most of 11 full weeks |
|---|
Terminal gate prices published by the Australian Institute of Petroleum.
How accurate is the forecast?
- Forecast miss, 7 days ahead
- 4.55 c/L
- "Prices stay the same"
- 4.70 c/L
Source: FuelRadar (fuelradar.com.au)
The week-ahead forecast has not yet beaten "prices stay the same", so every estimate is labelled "Estimate only" with its average miss.
From 50,257 checks of the seven-day estimate against the reported city daily average, beside assuming prices stay the same over the same days.
| Ahead | Miss | No change | Result |
|---|---|---|---|
| Next day | 0.87 | 0.97 | Closer than no change |
| 3 days ahead | 2.08 | 2.37 | Closer than no change |
| 7 days ahead | 4.55 | 4.70 | About the same as no change |
| 14 days ahead | 7.89 | 8.00 | About the same as no change |
| Average miss in c/L over each horizon's replay checks. The 7-day row decides whether the call names a direction. | |||
How we forecast
FuelRadar has helped Australian drivers find cheaper fuel since 2020. Each estimate starts from Perth's reported daily city averages and how they have moved recently. A city daily average is FuelRadar's scheduled morning average of the city's reported station prices, the figure this page quotes for every capital. Where a city has a regular price cycle, the estimate projects that cycle; elsewhere it follows the recent trend, blended with the latest dated wholesale price change. These are Perth city averages, not a separate Willetton forecast. The likely range widens with each day ahead.
Next-day estimates missed by 0.4 c/L on average, closer than assuming prices stay the same (0.5 c/L).
30 days checked · 10 Oct to 8 Nov
Forecast test resultsFuel price reports
What drivers paid in every state and territory in October 2026, town by town.
- Australia U91
- 242.8c/L 17.3 c/L higher than the period before
- Read the Australian reportEvery town we could rank, the capital against the rest and the cost of a litre
- Australian fuel price reportPDF · October 2026Download
- Every fuel price report
Forecast questions
When will Diesel prices go down in Willetton?
Estimate only: Diesel in Willetton is estimated to edge down about 4.1 c/L, to 257.6 c/L by Fri 20 Nov (likely 249.4–276.6), from 261.7 c/L reported Fri 13 Nov. Past 7-day estimates missed by about 4.5 c/L on average, only slightly less than assuming prices stay the same (4.7 c/L). The dated 30-day forecast shows a likely range, not a promised low date. Check current station prices before changing when you fill.
What is the best day to buy Diesel in Willetton?
There is no fixed best day for Willetton. Compare current reported station prices and their update times. A recent high or a lower estimate does not confirm a cheaper date.
How accurate is FuelRadar Australia's Diesel price outlook?
Not accurate enough yet to tell you to fill or wait, so we don't. From 10 Oct to 8 Nov our next-day Diesel forecasts for Perth were off by 0.4 c/L on average over 30 days checked. That beat assuming prices wouldn't move (0.5 c/L).
Do higher prices mean they will fall soon?
A recent high does not confirm a turnaround. Compare the reported movement with the estimated range. If that range still includes today's price, a fall is not established. Check current station prices before deciding to wait.
How often is the outlook updated?
We update the forecast overnight. For anything that changed today, check the map.