What is the cheapest petrol price in Semaphore today?

The cheapest unleaded petrol in Semaphore is currently 175.90c per litre. Prices range from 175.90c to 175.90c across 1 stations we monitor in the area.

When is the best day to buy petrol in Semaphore?

In SA, petrol prices typically follow a weekly cycle. The best time to fill up is usually early in the week (Monday to Wednesday) when prices are at their lowest. Avoid filling up on Thursday or Friday when prices tend to peak.

How often are fuel prices updated in Semaphore?

Petrolmate updates Semaphore fuel prices in real-time using official government APIs and community data. Prices are refreshed multiple times throughout the day to ensure accuracy.

Is E10 cheaper than regular unleaded in Semaphore?

Yes, E10 is typically 3-5 cents per litre cheaper than regular unleaded (ULP) in Semaphore. E10 contains 10% ethanol and is suitable for most vehicles made after 2005. Check your vehicle manual for compatibility.

Live Petrol Prices in Semaphore, Adelaide – 1+ Local Stations

Live fuel prices from 1+ stations in Semaphore, Adelaide. Average: 175.9c/L

Last updated: 11:10 PM, 29 Jan 2026

Open Map View

175.9c

Average Price (ULP)

175.9c

Cheapest Price

Petrol Stations

0.0c

Price Range

Semaphore Fuel Prices Today

Petrol prices in Semaphore (Adelaide area) currently range from 175.9c to 175.9c per litre for unleaded fuel, with motorists paying an average of 175.9c/L. We're tracking live prices from 1 service stations, which means you could save up to $0.00 on a 50L tank simply by choosing the right station. View all South Australia prices for broader comparisons.

Fuel Types Available

Compare all fuel types in Semaphore: Unleaded (ULP) from 175.9c/L, Premium 95 from 159.9c/L. Each fuel type page shows the cheapest stations in the area, helping you find the best deal whether you need regular unleaded, premium fuel, or diesel.

Best Time to Fill Up

South Australian prices are typically lowest Monday to Wednesday. Avoid filling up on weekends when prices tend to be higher. Check our Best Time to Fill Up guide for detailed advice.

Data Sources

Prices for Semaphore are sourced from SA Fuel Pricing and community-verified reports, updating continuously throughout the day. Compare prices by brand or view our full station directory for more options.

Petrol Price Trends in Semaphore

30-Day Price History

Average (30d) 176.8c

Lowest 171.9c

Highest 179.9c

Volatility Medium

Average (30d) 156.3c

Lowest 149.5c

Highest 169.9c

Volatility High

Price Cycle in SA

South Australia shows moderate price cycling with mid-week peaks.

Mon

Best

Tue

Best

Wed

Avoid

Thu

Avoid

Fri

Sat

Sun

Start-of-week refueling (Monday/Tuesday) offers the best value in South Australia.

PetrolSMART. Smart Fuel Insights

Prices Dropping

Good news! Prices look set to drop around 7.3c over the next week. Worth holding off a few days if you can.

77% Forecast Accuracy

Our price predictions are reliable, verified across 2.6M forecasts using proper scoring methods.

Might Be Worth Waiting

Prices could drop soon based on current trends. If you're not running on empty, might pay to wait a day or two.

Best Day: Thursday

Lowest prices on Thursday in Semaphore.

PetrolSMART Price Intelligence

PetrolSMART Market Sentiment

33%

Fill Now

Good Value

Fair

Wait

Check

Most stations in Semaphore are at fair prices

Price Cycle Overview

Distribution of stations across cycle phases in Semaphore

Dominant

Rising

Low 0% (0)

Rising 100% (1)

High 0% (0)

Falling 0% (0)

Rising Phase Dominant

Prices climbing - fill up soon to save

7-Day Price Forecast

-7.3c

average expected change

forecasting
drop

stable

forecasting
rise

Prices Expected to Drop

Prices across Semaphore are forecast to drop around 7.3c on average over the next week. If you can wait, you might save.

Cheapest Petrol Prices in Semaphore Right Now

Unleaded Petrol

Rank	Station	Brand	Suburb	Price	Updated
	X Convenience Semaphore	Independent	Semaphore	175.9c	Yesterday, 11:10pm

Premium Unleaded 95

Rank	Station	Brand	Suburb	Price	Updated
	X Convenience Semaphore	Independent	Semaphore	159.9c	Yesterday, 11:10pm

● Cheapest Suburbs for Petrol in Semaphore

Find the best value by suburb - average unleaded petrol prices:

Suburb	Stations	Average Price	Cheapest Price

✓ Cheapest Petrol Stations in Semaphore

Save money at these stations with the lowest ULP prices. Prices shown for all available fuel types:

Station	Address	Brand	ULP	E10	Diesel	P95	P98	Updated
X Convenience Semaphore	132 Semaphore Road	Independent	175.9c	-	-	159.9c	-	Yesterday, 11:10pm

⚠ Most Expensive Petrol Stations in Semaphore

Avoid overpaying - these stations have the highest ULP prices:

Station	Address	Brand	ULP	E10	Diesel	P95	P98	Updated
X Convenience Semaphore	132 Semaphore Road	Independent	175.9c	-	-	159.9c	-	Yesterday, 11:10pm

Savings Tip: Price difference between cheapest (175.9c/L) and most expensive (175.9c/L): 0.0c per litre. On a 50L tank, choosing the cheapest station saves you $0.00!

▸ Nearby Areas in SA

Compare fuel prices in these nearby locations:

▸ View Interactive Map & Live Prices for Semaphore →

Nearby Suburbs in Adelaide

Blair Athol Parafield Gardens Pooraka Kilburn Prospect St Peters Adelaide Kent Town North Adelaide Norwood Paradise Parafield Salisbury Stepney

About Petrol Prices in Semaphore

Semaphore has 1 petrol stations. Right now, ULP (unleaded petrol) prices in Semaphore range from 175.9c/L to 175.9c/L (a difference of 0.0c/L).

Data sourced from official government sources and community price reports, updated throughout the day. We track live prices from major fuel brands including Ampol, Shell, BP, 7-Eleven, Coles Express, and independent service stations. The current average price is 175.9c/L (last updated: 11:10 PM, 29 Jan 2026).

How to Save Money on Fuel in Semaphore

Compare before you fill: Use Petrolmate to find the cheapest stations - right now you can save up to 0.0c per litre in Semaphore
Time it right: In South Australia, fill up early in the week (Monday-Wednesday) when prices are typically lower
Shop around suburbs: Prices can vary significantly between different areas
Consider alternative fuels: E10 is often cheaper than regular unleaded - check if your vehicle supports it
Use fuel discounts: Supermarket fuel vouchers (Woolworths, Coles) and BP rewards can save 4c or more per litre

🌏 Compare Petrol Prices in Other Cities

Find cheap fuel prices in other major cities across Australia and New Zealand:

Sydney, NSW Melbourne, VIC Brisbane, QLD Perth, WA Adelaide, SA Hobart, TAS Darwin, NT Canberra, ACT Auckland, NZ Wellington, NZ Christchurch, NZ