Castle Hill Diesel price forecast
As of Mon 16 Nov, Castle Hill diesel averages 266.6 c/L, and FuelRadar estimates it will fall about 3.0 c/L to 263.6 c/L by Mon 23 Nov.
Diesel
More fuels (1)
Likely to fall
Estimate only (yesterday's outlook): prices may edge down about 3.0 c/L by Mon 23 Nov.
- City average (estimate)
- 266.6 c/L
- Typical miss, a week ahead
- 4.6 c/L(no change: 4.9)
Sydney prices are typical right now
Cheaper than on 67% of the last 91 days. Usual range 255.0 to 283.4 c/L.
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Cheapest Diesel near Castle Hill now
Updated
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.
See the Castle Hill Diesel forecast in the app
The 7-day Castle Hill forecast, updated each day, and price alerts. Free on iPhone and Android.
App preview. Prices shown are example captures, not current reports.
Questions about the Castle Hill forecast
Castle Hill Diesel forecast explained
Where prices sit
Castle Hill uses the Sydney Diesel outlook.
What usually happens next
Diesel prices do not follow a regular cycle, so the estimate follows the recent trend in Sydney's daily averages. That puts it down about 3.0 c/L by .
What could change it
Wholesale and crude signals: wholesale diesel in Sydney fell 9.8 c/L over the five days to , and Brent crude rose 4.8% to US$95.84 a barrel. The estimate does not use them directly.
What is the Diesel estimate each day, and can I download it?
Diesel: last 30 days and the next 7
Diesel: last 30 days and the next 7. The forecast moves from 266.6 c/L on 16 Nov 2026 to 263.6 c/L on 23 Nov 2026.
Source: FuelRadar (fuelradar.com.au)
Reported city averages to Sun 15 Nov, then the FuelRadar Sydney estimate dated Sun 15 Nov with its likely range shaded, the Sydney city average for Castle Hill.
Lowest estimate: Sun 22 Nov, about 263.6 c/L (3.0 below today).
Day by day
Each day’s likely range and estimate, with the change from today’s 266.6 c/L (dashed line).
- likely 263.3 to 269.6 c/L265.61.0 cents per litre lower
- likely 261.1 to 271.0 c/L264.62.0 cents per litre lower
- likely 259.7 to 273.9 c/L264.32.3 cents per litre lower
- likely 258.4 to 276.9 c/L264.12.5 cents per litre lower
- likely 257.0 to 280.0 c/L263.92.7 cents per litre lower
- likely 255.6 to 282.9 c/L263.63.0 cents per litre lower
- likely 255.6 to 282.9 c/L263.63.0 cents per litre lower
When is fuel cheapest in Sydney?
Sydney has no regular price cycle: its Diesel prices follow wholesale costs, so they tend to move a week or two after the terminal gate price.
On Fri 13 Nov the national terminal gate (wholesale) price was 247.1 c/L and the Sydney city average 269.5 c/L, 22.4 c/L above it.
No weekday was the cheapest in most of the last 11 full weeks to : the Diesel weekday averages in Sydney were within 0.6 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
- 4.58 c/L
- "Prices stay the same"
- 4.87 c/L
Source: FuelRadar (fuelradar.com.au)
Over 51,428 week-ahead checks the forecast missed by less than assuming prices stay the same.
| Ahead | Miss | No change | Result |
|---|---|---|---|
| Next day | 0.88 | 0.98 | Closer than no change |
| 3 days ahead | 2.05 | 2.42 | Closer than no change |
| 7 days ahead | 4.58 | 4.87 | Closer than no change |
| 14 days ahead | 7.97 | 8.05 | 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 does FuelRadar make the forecast?
FuelRadar has helped Australian drivers find cheaper fuel since 2020. Each estimate starts from Sydney'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 Sydney city averages, not a separate Castle Hill forecast. The likely range widens with each day ahead.
Next-day estimates missed by 0.7 c/L on average over the 30 days to 14 Nov, about the same as assuming prices stay the same (0.7 c/L).
30 days checked · 16 Oct to 14 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 Castle Hill?
Estimate only (yesterday's outlook): Diesel in Castle Hill is estimated to edge down about 3.0 c/L, to 263.6 c/L by Mon 23 Nov (likely 255.6–282.9), from 266.6 c/L estimated for Mon 16 Nov. 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 Castle Hill?
There is no fixed best day for Castle Hill. 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 16 Oct to 14 Nov our next-day Diesel forecasts for Sydney were off by 0.7 c/L on average over 30 days checked. Assuming prices wouldn't move was just as close.
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. While the update runs, we may show the previous forecast with its date.