Mount Isa Premium diesel price forecast

As of Mon 9 Nov, Mount Isa premium diesel averages 271.8 c/L, and FuelRadar expects it to stay about the same over the next 7 days (estimate only). The cheapest station, Solo Mount Isa, is 265.5 c/L, 6.3 c/L under the average.

Premium diesel

About the same this week

Estimate only: expected to stay about the same over the next 7 days. Likely 261.9–281.7 c/L by Tue 17 Nov, from how far the average moved over 7 days in the last 90 days. Past 7-day estimates missed by about 6.5 c/L on average, more than assuming prices stay the same (6.3 c/L).
City average · 271.8 c/L
Last 7 days From 277.4 on Sat 31 Oct

Cheapest of 2 stations: 265.5 c/L at Solo Mount Isa · Updated

Alert me below 264.5
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Mount Isa prices are typical right now

The city average of 271.8 c/L sits inside the usual range of 265.1 to 293.3 c/L for the last 66 days. That is higher than on 36% of the last 66 days.

Mount Isa Premium diesel forecast explained

What could change it

Wholesale and crude signals: the national wholesale diesel price fell 9.7 c/L to 257.0 c/L over the five days to , and Brent crude fell 1.0% to US$93.70 a barrel. The estimate does not use them directly.

Capital cities

Each capital's latest city daily average and where it sits in its price cycle; each row opens that city's forecast. City daily averages, not station prices.

Capital cities
CapitalAverage (c/L)Price cycleCall
Sydney275.7No regular cycle275.7 by Tue 17 Nov
Melbourne276.5No regular cycle273.5 by Tue 17 Nov
Brisbane278.0No regular cycle275.8 by Tue 17 Nov
Perth274.1No regular cycle270.3 by Tue 17 Nov
Adelaide267.7 (lowest)No regular cycle265.0 by Tue 17 Nov
Canberra285.0No regular cycle286.6 by Tue 17 Nov
Darwin287.9No regular cycleAbout the same
Hobart283.8No regular cycle281.1 by Tue 17 Nov

When is Premium diesel cheapest in Mount Isa?

When is Premium diesel cheapest in Mount Isa?
90-day low247.8 c/LFri 14 Aug
Today against the 90-day low+24.0 c/LCity average 271.8 c/L on Mon 9 Nov

From 66 days of Mount Isa Premium diesel city daily averages to Mon 9 Nov.

See the Mount Isa Premium diesel forecast in the app

The 7-day forecast, a fill-now-or-wait call each day and price alerts. Free on iPhone and Android.

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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

App preview. Prices shown are example captures, not current reports.

How accurate is the forecast?

Forecast miss, 7 days ahead
6.49 c/L
"Prices stay the same"
6.30 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 303 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 day1.151.25Closer than no change
3 days ahead2.993.25Closer than no change
7 days ahead6.496.30About the same as no change
14 days ahead10.9210.39Further off than 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 Mount Isa'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.

Forecast questions

When will Premium diesel prices go down in Mount Isa?

Estimate only: Premium diesel in Mount Isa is expected to stay about the same over the next 7 days (the latest city daily average, 271.8 c/L on Mon 9 Nov). Likely 261.9–281.7 c/L by Tue 17 Nov, from how far the average moved over 7 days in the last 90 days. Down 5.6 c/L on a week ago (277.4 c/L on Sat 31 Oct). Past 7-day estimates missed by about 6.5 c/L on average, more than assuming prices stay the same (6.3 c/L). Check current station prices before you fill.

What is the best day to buy Premium diesel in Mount Isa?

There is no fixed best day for Mount Isa. 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 Premium diesel price outlook?

Not accurate enough yet to tell you to fill or wait, so we don't.

What were the lowest and highest Premium diesel prices in Mount Isa in the last 90 days?

Since Wed 12 Aug, the Mount Isa Premium diesel city daily average ranged from 247.8 c/L on Fri 14 Aug to 301.1 c/L on Sat 26 Sept. It was 271.8 c/L on Mon 9 Nov.

Will premium diesel prices go up tomorrow in Mount Isa?

Estimate only: FuelRadar's Mount Isa estimate for Wed 11 Nov is 271.8 c/L, the same as the 271.8 c/L reported for Tue 10 Nov. 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.

Fuel price reports

What drivers paid in every state and territory in October 2026, town by town.