Shellharbour Diesel price forecast

As of Sun 15 Nov, Shellharbour diesel averages 265.8 c/L, and FuelRadar estimates it will fall about 4.4 c/L to 261.4 c/L by Sun 22 Nov.

Diesel

Likely to fall

Estimate only (yesterday's outlook): prices may edge down about 4.4 c/L by Sun 22 Nov.

City average (estimate) · 265.8 c/L
Expected by 261.4 c/L

How sure: a week ahead, the estimate has been off by 4.6 c/L on average over 50,257 checks, about the same as assuming prices stay the same (4.7 c/L).

Sydney prices are typical right now

The city average of 267.3 c/L sits inside the usual range of 253.4 to 283.4 c/L for the last 91 days. That is higher than on 34% of the last 91 days.

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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 Sat 14 Nov.

Capital cities
CapitalAverage (c/L)Call
Sydney267.3261.4 by Sun 22 Nov
Melbourne264.9257.5 by Sun 22 Nov
Brisbane263.9258.6 by Sun 22 Nov
Perth260.7Tomorrow 258.2
Adelaide255.4 (lowest)252.2 by Sun 22 Nov
Canberra273.4269.2 by Sun 22 Nov
Darwin278.0276.6 by Sun 22 Nov
Hobart270.3265.6 by Sun 22 Nov

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FuelRadar app Today screen with the fill-up call for Brisbane and the cheapest Unleaded 91 within 15 km
FuelRadar app fuel map with Unleaded 91 prices around Brisbane, each marked Cheap, Average or Pricey

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More about the Shellharbour forecast

Shellharbour Diesel forecast explained

Where prices sit

Shellharbour 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 4.4 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 3.7% to US$96.00 a barrel. The estimate does not use them directly.

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 265.8 c/L on 15 Nov 2026 to 261.4 c/L on 22 Nov 2026.

Source: FuelRadar (fuelradar.com.au)

Shaded area shows the estimated range.

Reported city averages to Sat 14 Nov, then the FuelRadar Sydney estimate dated Sat 14 Nov with its likely range shaded, the Sydney city average for Shellharbour.

Lowest estimate: Sat 21 Nov, about 261.4 c/L (4.4 below today).

Day by day

Each day’s likely range and estimate, with the change from today’s 265.8 c/L (dashed line).

  1. likely 262.2 to 268.6 c/L264.5
  2. likely 259.8 to 269.8 c/L263.3
  3. likely 258.2 to 272.7 c/L262.8
  1. likely 256.6 to 275.6 c/L262.4
  2. likely 255.0 to 278.5 c/L261.9
  3. likely 253.3 to 281.4 c/L261.4
  4. likely 253.3 to 281.4 c/L261.4

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.

When is Diesel cheapest in Sydney?
Cheapest weekdayNo 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.

Average miss by days ahead, beside assuming prices stay the same
AheadMissNo changeResult
Next day0.870.97Closer than no change
3 days ahead2.082.37Closer than no change
7 days ahead4.554.70About the same as no change
14 days ahead7.898.00About 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 check accuracy

How we 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 Shellharbour forecast. The likely range widens with each day ahead.

Next-day estimates missed by 0.5 c/L on average over the 30 days to 8 Nov, about the same as assuming prices stay the same (0.6 c/L).

30 days checked · 10 Oct to 8 Nov

Forecast test results

Fuel 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

Forecast questions

When will Diesel prices go down in Shellharbour?

Estimate only (yesterday's outlook): Diesel in Shellharbour is estimated to edge down about 4.4 c/L, to 261.4 c/L by Sun 22 Nov (likely 253.3–281.4), from 265.8 c/L estimated for Sun 15 Nov. Past 7-day estimates missed by about 4.6 c/L on average, about the same as 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 Shellharbour?

There is no fixed best day for Shellharbour. 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 Sydney were off by 0.5 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.