Portland U91 price forecast
As of Tue 10 Nov, Portland U91 averages 230.0 c/L, and FuelRadar estimates it will fall about 4.0 c/L to 226.0 c/L by Tue 17 Nov.
U91Outlook updated
Likely to fall
Estimate only: prices may fall about 5.4 c/L by Fri 13 Nov, then sit about 4.0 c/L below today by Tue 17 Nov.Portland prices are typical right now
The city average of 230.0 c/L sits inside the usual range of 203.0 to 239.3 c/L for the last 91 days. That is higher than on 44% of the last 91 days.
Over the last 55 days, 7-day estimates missed by 4.9 c/L on average; "no change" missed by 5.1 c/L.
U91: last 30 days and the next 7
U91: last 30 days and the next 7. Reported history begins at 243.7 c/L on 12 Oct 2026. The forecast moves from 230.0 c/L on 10 Nov 2026 to 226.0 c/L on 17 Nov 2026.
Source: FuelRadar (fuelradar.com.au)
Reported city averages to Tue 10 Nov, then the FuelRadar Portland estimate dated Tue 10 Nov with its likely range shaded.
Lowest estimate: Fri 13 Nov, about 224.6 c/L (5.4 below today).
Day by day
Each day’s likely range and estimate, with the change from today’s 230.0 c/L (dashed line).
- likely 227.1 to 230.3 c/L227.8
- likely 224.6 to 231.1 c/L226.2
- likely 222.2 to 231.9 c/L224.6
- likely 222.1 to 234.7 c/L224.9
- likely 222.1 to 237.6 c/L225.3
- likely 222.0 to 240.4 c/L225.6
- likely 222.0 to 243.3 c/L226.0
Portland U91 forecast explained
What usually happens next
Portland has no regular price cycle, so the estimate follows the recent trend in its daily averages, blended with the latest five-day change in wholesale prices. That puts it down about 4.0 c/L by .
What could change it
Wholesale and crude signals: the national wholesale petrol price fell 13.7 c/L to 211.5 c/L over the five days to , and Brent crude fell 1.0% to US$93.70 a barrel. The estimate already blends in that wholesale change.
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 Tue 10 Nov.
When is fuel cheapest in Portland?
Portland has no regular price cycle: its U91 prices follow wholesale costs, 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 211.5 c/L and the Portland city average 239.3 c/L, 27.8 c/L above it.
No weekday was the cheapest in most of the last 11 full weeks to : the U91 weekday averages in Portland 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.
See the Portland U91 forecast in the app
The 7-day forecast, a fill-now-or-wait call each day 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
- 4.17 c/L
- "Prices stay the same"
- 4.12 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 412 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 | 0.74 | 0.74 | About the same as no change |
| 3 days ahead | 1.82 | 1.94 | Closer than no change |
| 7 days ahead | 4.17 | 4.12 | About the same as no change |
| 14 days ahead | 7.94 | 7.85 | 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. | |||
Portland forecast graphics for news
How we forecast
FuelRadar has helped Australian drivers find cheaper fuel since 2020. Each estimate starts from Portland'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.
Next-day estimates missed by 0.8 c/L on average, closer than assuming prices stay the same (0.8 c/L).
56 days checked · 16 Sept to 10 Nov
Forecast test resultsForecast questions
When will U91 prices go down in Portland?
Estimate only: U91 in Portland is estimated to fall about 5.4 c/L by Fri 13 Nov, then sit about 4.0 c/L below today, 226.0 c/L by Tue 17 Nov (likely 222.0–243.3), from 230.0 c/L reported Tue 10 Nov. Over the last 55 days, 7-day estimates missed by 4.9 c/L on average; "no change" missed by 5.1 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 Portland?
No weekday was consistently cheaper in Portland over the last 11 full weeks to Mon 9 Nov once the overall price movement is removed: the weekday averages were within 0.7 c/L of each other.
How accurate is FuelRadar Australia's U91 price outlook?
Not accurate enough yet to tell you to fill or wait, so we don't. Each estimate shows its likely range. From 16 Sept to 10 Nov our next-day U91 forecasts for Portland were off by 0.8 c/L on average over 56 days checked. That beat assuming prices wouldn't move (0.8 c/L).
What were the lowest and highest U91 prices in Portland in the last 90 days?
Since Wed 12 Aug, the Portland U91 city daily average ranged from 200.0 c/L on Sun 16 Aug to 243.7 c/L on Wed 14 Oct. It was 230.0 c/L on Tue 10 Nov.
Will petrol prices go up tomorrow in Portland?
Estimate only: FuelRadar's Portland estimate for Wed 11 Nov is 227.8 c/L, down 2.2 c/L on the 230.0 c/L reported for Tue 10 Nov. Next-day estimates for Portland 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.
When will diesel prices go down in Portland?
Diesel does not usually follow the petrol price cycle, so there is no regular low to wait for. The Portland diesel city daily average was 266.7 c/L on Tue 10 Nov, down 7.7 c/L over 30 days. The national wholesale diesel price fell 9.7 c/L over the five days to Fri 6 Nov. FuelRadar names no date for a fall: the Portland diesel forecast gives its day-by-day estimate and likely range.
How often is the outlook updated?
We update the forecast overnight. For anything that changed today, check the map.
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