Perth Premium diesel price forecast
As of Tue 10 Nov, Perth premium diesel averages 271.3 c/L, and FuelRadar estimates it will fall about 1.0 c/L to 270.3 c/L by Tue 17 Nov. No weekday has been reliably cheaper over the last 11 full weeks; the cheapest station, Costco Casuarina, is 246.7 c/L, 24.6 c/L under the average.
Premium dieselOutlook updated
Likely to fall
Estimate only (yesterday's outlook): prices may fall about 3.2 c/L by Thu 12 Nov, then sit about 1.0 c/L below today by Tue 17 Nov. Over the last 55 days, 7-day estimates missed by 5.6 c/L on average; "no change" missed by 5.5 c/L.FuelWatch official price for tomorrow,
271.3 c/L on today's city average
The average of the prices stations must charge for 24 hours from 6 am tomorrow, as published by FuelWatch. A published price, not a FuelRadar estimate.
Cheapest of 329 stations: 246.7 c/L at Costco Casuarina · Updated
Lowest estimate: Mon 16 Nov, about 270.3 c/L (1.0 below today).
Chance of a rise of 5 c/L or more within 3 days: 6%
Alert me below 245.7Cheapest Premium diesel in Perth now
Updated
Premium diesel: last 30 days and the next 7
Premium diesel: last 30 days and the next 7. Reported history begins at 279.9 c/L on 11 Oct 2026. The forecast moves from 271.3 c/L on 10 Nov 2026 to 270.3 c/L on 17 Nov 2026.
Source: FuelRadar (fuelradar.com.au)
Reported city averages to Mon 9 Nov, then the FuelRadar Perth estimate dated Mon 9 Nov with its likely range shaded.
Day by day
Each day’s likely range and estimate, with the change from today’s 271.3 c/L (dashed line).
- likely 268.3 to 274.3 c/L271.1
- likely 266.6 to 275.6 c/L270.9
- likely 264.8 to 278.4 c/L270.7
- likely 263.2 to 281.4 c/L270.6
- likely 261.5 to 284.2 c/L270.4
- likely 259.9 to 287.1 c/L270.3
- likely 259.9 to 287.1 c/L270.3
Perth prices are typical right now
The city average of 274.1 c/L sits inside the usual range of 254.8 to 280.2 c/L for the last 90 days. That is higher than on 40% of the last 90 days.
Perth Premium diesel forecast explained
What usually happens next
Premium diesel prices do not follow a regular cycle, so the estimate follows the recent trend in Perth's daily averages. That puts it down about 1.0 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 fell 5.1% to US$98.32 a barrel. The estimate does not use them directly.
Other capitals
Each capital's latest city daily average and its call; each row opens that city's forecast. City daily averages, not station prices.
| Capital | Average (c/L) | Price cycle | Call |
|---|---|---|---|
| Sydney | 275.7 | No regular cycle | 275.7 by Tue 17 Nov |
| Melbourne | 276.5 | No regular cycle | 273.5 by Tue 17 Nov |
| Brisbane | 278.0 | No regular cycle | 275.8 by Tue 17 Nov |
| Adelaide | 267.7 (lowest) | No regular cycle | 265.0 by Tue 17 Nov |
| Canberra | 285.0 | No regular cycle | 286.6 by Tue 17 Nov |
| Darwin | 287.9 | No regular cycle | About the same |
| Hobart | 283.8 | No regular cycle | 281.1 by Tue 17 Nov |
When is Premium diesel cheapest in Perth?
No weekday was the cheapest in most of the last 11 full weeks to : the Premium diesel weekday averages in Perth were within 0.5 c/L of each other once the overall price movement is removed.
| 90-day low | 242.7 c/LFri 14 Aug |
|---|---|
| Today against the 90-day low | +31.4 c/LCity average 274.1 c/L on Mon 9 Nov |
From 90 days of Perth Premium diesel city daily averages to Mon 9 Nov.
Perth this week and a year ago
Perth Premium diesel averaged 277.2 c/L over the seven days to 9 November 2026, 86.6 c/L above the same week a year earlier (190.6 c/L).
| Week | Average (c/L) |
|---|---|
| Latest seven days3 Nov to 9 November 2026 | 277.2 |
| Same week a year earlier4 Nov to 10 November 2025 | 190.6 |
| Change | +86.6 |
The same weekdays 52 weeks apart, from the city daily averages.
See tomorrow's Premium diesel prices for Perth in the app
WA's official next-day prices, your saved stations and price alerts. Free on iPhone and Android.
App preview. Prices shown are example captures, not current reports.
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. | |||
Tomorrow's FuelWatch price is a published price, not an estimate, so it is not counted here.
How we check accuracyHow 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. The likely range widens with each day ahead. Tomorrow's figure is FuelWatch's official price, not an estimate, so the accuracy below does not count it.
Next-day estimates missed by 0.8 c/L on average, closer than assuming prices stay the same (0.9 c/L).
56 days checked · 15 Sept to 9 Nov
Forecast test resultsForecast questions
When will Premium diesel prices go down in Perth?
Estimate only (yesterday's outlook): Premium diesel in Perth is estimated to fall about 3.2 c/L by Thu 12 Nov, then sit about 1.0 c/L below today, 270.3 c/L by Tue 17 Nov (likely 259.9–287.1), from 271.3 c/L estimated for Tue 10 Nov. Over the last 55 days, 7-day estimates missed by 5.6 c/L on average; "no change" missed by 5.5 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 Premium diesel in Perth?
No weekday was consistently cheaper in Perth over the last 11 full weeks to Mon 9 Nov once the overall price movement is removed: the weekday averages were within 0.5 c/L of each other.
How accurate is FuelRadar Australia's Premium diesel price outlook?
Not accurate enough yet to tell you to fill or wait, so we don't. Each estimate shows its likely range. From 15 Sept to 9 Nov our next-day Premium diesel forecasts for Perth were off by 0.9 c/L on average over 56 days checked. That beat assuming prices wouldn't move (0.9 c/L).
What were the lowest and highest Premium diesel prices in Perth in the last 90 days?
Since Wed 12 Aug, the Perth Premium diesel city daily average ranged from 242.7 c/L on Fri 14 Aug to 290.0 c/L on Thu 24 Sept. It was 274.1 c/L on Mon 9 Nov.
Will premium diesel prices go up tomorrow in Perth?
Estimate only: FuelRadar's Perth estimate for Wed 11 Nov is 271.1 c/L, down 0.2 c/L on the 271.3 c/L estimated for Tue 10 Nov. Next-day estimates for Perth missed by 0.8 c/L on average over 56 days checked, closer than assuming prices stay the same. Check current station prices before you wait to fill.
How often is the outlook updated?
We update the forecast overnight. For anything that changed today, check the map. While the update runs, we may show the previous forecast with its date.
Fuel price reports
What drivers paid in every state and territory in October 2026, town by town.
- Australia U91
- 242.8c/L +17.3 on 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