Suburb fuel prices
Cheap Premium Diesel in Williamstown Western Australia 6430
Whether Williamstown is running cheap or dear for Premium Diesel right now — from 189.9 c/L, averaging 193.9 c/L across 5 tracked stations in Williamstown.
Prices as of 5 hr ago AEST · sourced from FuelWatch
WAIT
Premium Diesel in Williamstown is dearer than the Western Australia average
Williamstown sits 6.5c above the Western Australia average. Williamstown is 5.6c/L under its 30-day average right now — near the bottom of the cycle.
How it compares
- Western Australia state avg187.4c/L+6.5c/L
- National avg185.3c/L+8.6c/L
- Wholesale (TGP)160c/L+33.9c/L
At a glance
Williamstown fuel prices at a glance
- Cheapest Premium Diesel
- 189.9 c/L
- Suburb average
- 193.9 c/L
- Price range
- 6.0c spread
- Stations tracked
- 5
- Nearby alternatives
- 5
- Brands
- 2
- Postcode
- 6430
- Last updated
- 3 July 2026, 6:00 am AEST
Nearby stations
Cheapest Premium Diesel stations around Williamstown
No stations found directly in Williamstown. Showing current Premium Diesel prices in surrounding areas.
FuelRadar
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FuelWatch WA
Today and tomorrow fuel prices in Williamstown
Official WA next-day prices are published from 2:30pm and apply from 6am tomorrow. Use the tabs to compare today against the locked tomorrow price.
Ampol Foodary Kalgoorlie
581 Hannan St
PDSL
193.9 c/L
193.9 c/L
No changeAmpol Foodary Kalgoorlie South
146 Boulder Rd
PDSL
193.9 c/L
193.9 c/L
No changeCaltex Kalgoorlie
77 Egan St
PDSL
195.9 c/L
195.9 c/L
No changeCaltex Piccadilly
7 Maritana St
PDSL
195.9 c/L
195.9 c/L
No changeAmpol Kalgoorlie Diesel Stop
2 Cunningham Rd
PDSL
189.9 c/L
203.9 c/L
+14.0 c/L
Source: FuelWatch WA official next-day prices. Tomorrow prices apply from 6:00am in Western Australia.
Frequently asked
Williamstown fuel questions
The cheapest Premium Diesel in Williamstown is currently at Ampol Kalgoorlie Diesel Stop for 189.9 c/L.
Prices are easing
Latest average is 2.2c below the start of the fortnight.
30-day spread · Premium Diesel
Williamstown Premium Diesel cycle
Williamstown is currently 5.6c/L below its 30-day average — a relatively good time to fill up.
30-day low
181.9c/L
Lowest point in the local spread
30-day average
196.3c/L
30-day high
215.9c/L
Today's average
190.7c/L
Cheapest Premium Diesel right now
- 1Ampol Kalgoorlie Diesel StopAmpol · 6.4 km away189.9 c/L
- 2Ampol Foodary KalgoorlieAmpol · 3.9 km away193.9 c/L
- 3Ampol Foodary Kalgoorlie SouthAmpol · 1.1 km away193.9 c/L
- 4Caltex KalgoorlieCaltex · 1.0 km away195.9 c/L
- 5Caltex PiccadillyCaltex · 2.0 km away195.9 c/L
Source: Reported Premium Diesel pump prices across Williamstown.
7-day outlook
Williamstown 7-day Premium Diesel outlook
Williamstown prices follow the Perth cycle, so this outlook takes the Perth Premium Diesel forecast and adjusts it to Williamstown's own price level using 90 days of local history. You can see the Perth benchmark alongside the local estimate below.
Perth is in the falling phase of its current cycle.
Williamstown today (est.)
190.4c/L
Perth 184.2c/L · +6.2c/L local
Predicted in 7 days
188.4c/L
7-day range
186.3 – 191.8c/L
All fuel types
Fuel prices in Williamstown by type
Low, average and high for each fuel type from the 5 stations tracked here.
| Fuel | Low | Avg | High | Stations | Cheapest at |
|---|---|---|---|---|---|
| U91 | 171.9c | 174.7c | 181.9c | 5 | Ampol Foodary Kalgoorlie South |
| PDSL | 189.9c | 193.9c | 195.9c | 5 | Ampol Kalgoorlie Diesel Stop |
| P95 | 188.9c | 189.2c | 189.9c | 3 | Ampol Foodary Kalgoorlie South |
| P98 | 198.9c | 201.7c | 208.9c | 4 | Ampol Foodary Kalgoorlie South |
Nearby suburbs
Suburbs near Williamstown
How Williamstown compares to neighbouring areas — cheapest first, delta vs the Williamstown average.
- WiWilliamstownYou
193.9c
0.0vs Williamstown - BiBinduli
193.9c
0.0vs Williamstown - BrBroadwood
193.9c
0.0vs Williamstown - HaHannans
193.9c
0.0vs Williamstown - KaKalgoorlie
193.9c
0.0vs Williamstown - KaKarlkurla
193.9c
0.0vs Williamstown - LaLamington
193.9c
0.0vs Williamstown - MuMullingar
193.9c
0.0vs Williamstown - PiPiccadilly
193.9c
0.0vs Williamstown - SoSomerville
193.9c
0.0vs Williamstown - SoSouth Kalgoorlie
193.9c
0.0vs Williamstown
Local brands
Fuel brands in Williamstown
Open brand pages for broader price context, loyalty discounts and nearby station coverage before choosing a servo.
Explore the area
Browse fuel prices around Williamstown
Step up to the city and state, compare neighbouring suburbs, or open the live Premium Diesel map.
Williamstown snapshot
Live Premium Diesel prices in Williamstown
Today's prices
In Williamstown, Western Australia, the cheapest U91 today is 171.9c with an area average of 174.7c across 5 listed stations. Other fuels tracked in this suburb include PDSL from 189.9c, P95 from 188.9c and P98 from 198.9c.
Tomorrow's FuelWatch prices
FuelWatch WA has published tomorrow's prices for 5 station-grade listings around Williamstown. Ampol Foodary Kalgoorlie is the cheapest tomorrow at 193.9c for PDSL (0.0c vs today).
How it compares
Williamstown is currently 6.5c above the Western Australia state average of 187.4c. Open the live fuel map to see how individual stations spread within Williamstown.
Compare neighbouring suburbs
Cheaper fuel may be nearby — compare Binduli (from 189.9c), Broadwood (from 189.9c), Hannans (from 189.9c), Kalgoorlie (from 189.9c) or Karlkurla (from 189.9c) before planning a fill-up.
FuelRadar app
Keep Williamstown fuel prices in your pocket
Track Williamstown prices, watch the local cycle and get an alert before the next jump — from your phone.
