Kiara U91 price forecast
As of Fri 13 Nov, Kiara U91 averages 208.8 c/L, and FuelRadar estimates it will fall about 4.2 c/L to 204.6 c/L by Fri 20 Nov.
U91
Likely to fall
Estimate only: prices may edge down about 4.2 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).
Perth's average last bottomed at 204.1 c/L on Wed 11 Nov, 2 days ago, and is 4.8 c/L higher now. Its last peak was 231.4 c/L on Thu 5 Nov.
How sure: a week ahead, the estimate has been off by 4.5 c/L on average over 50,257 checks.
Near the low point of this cycle
At 208.9 c/L, the city average is 22.5 c/L below the 231.4 peak on Thu 5 Nov and 4.8 c/L above the 204.1 low on Wed 11 Nov. Prices overall are higher than on 27% 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 U91 near Kiara now
Updated
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More about the Kiara forecast
Kiara U91 forecast explained
Where prices sit
Kiara uses the Perth U91 outlook, adjusted by -0.1 c/L for Kiara's own price history.
What usually happens next
From the bottom of the cycle, prices usually fall: the estimate is down about 4.2 c/L to 204.6 c/L by . After a market-wide move, the model restated the cycle at today's price level, so it does not expect a return to the earlier low.
What could change it
Wholesale and crude signals: wholesale petrol in Perth fell 14.2 c/L over the five days to , and Brent crude rose 2.8% to US$95.20 a barrel. The estimate does not use them directly.
U91 forecast chart and daily figures
U91: last 30 days and the next 7
U91: last 30 days and the next 7. The forecast moves from 208.8 c/L on 13 Nov 2026 to 204.6 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, shifted 0.1 c/L lower for Kiara's local prices.
Lowest estimate: Mon 16 Nov, about 202.1 c/L (6.7 below today).
Day by day
Each day’s likely range and estimate, with the change from today’s 208.8 c/L (dashed line).
- likely 202.8 to 207.5 c/L205.5
- likely 198.8 to 210.5 c/L203.8
- likely 194.8 to 213.6 c/L202.1
- likely 194.6 to 214.9 c/L202.7
- likely 194.5 to 216.2 c/L203.3
- likely 194.5 to 217.7 c/L204.0
- likely 194.4 to 219.0 c/L204.6
When is fuel cheapest in Perth?
U91 prices in Perth have cycled about every 7 days over the last 12 completed cycles since Aug 2026.
A typical cycle rose 13.0 c/L in about 1 day from its low, then fell 12.9 c/L from the peak to the next low.
Prices usually stayed within 2 c/L of the low for about 1 day.
Wednesday is usually the cheapest day for U91 in Perth: it was the lowest in 11 of 11 full weeks to , 6.8 c/L under the weekly average. Thursday was the dearest in 11 of 11.
| Typical cycle, low to low | 7 days |
|---|---|
| Rise from the low to the peak | 13.0 c/LOver about 1 day |
| Fall from the peak to the next low | 12.9 c/L |
| Days near the bottom | 1 dayWithin 2 c/L of the low |
| Cheapest weekday | WednesdayLowest in 11 of 11 full weeks |
Medians over the last 12 completed Perth cycles since Aug 2026, from the city daily averages.
What usually follows a Perth price peak
What usually happens after a peak
Past 12 cyclesSource: FuelRadar (fuelradar.com.au)
7 days after their peak, the last 12 Perth cycles since Aug 2026 sat a median 0.8 c/L below the peak, the middle half from 1.7 below to 3.6 above.
Past Perth cycles lined up on their peak day, from the city daily averages. A record of past cycles, not a forecast.
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. Based on the Perth U91 outlook, adjusted by -0.1 c/L using local price history. The likely range widens with each day ahead.
Next-day estimates missed by 1.1 c/L on average, closer than assuming prices stay the same (3.8 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 U91 prices go down in Kiara?
Estimate only: U91 in Kiara is estimated to edge down about 4.2 c/L, to 204.6 c/L by Fri 20 Nov (likely 194.4–219.0), from 208.8 c/L estimated for 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 U91 in Kiara?
There is no fixed best day for Kiara. 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 U91 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 U91 forecasts for Perth were off by 1.1 c/L on average over 30 days checked. That beat assuming prices wouldn't move (3.8 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.