As autumn settles in across Ireland, fuel prices are experiencing notable shifts. Whether you’re commuting through Dublin, heading to Galway, or enjoying the scenic routes of County Kerry, staying informed about current fuel costs is essential. Here’s a comprehensive update on petrol and diesel prices for October 2025.
Ireland Diesel Price October 2025
In August 2025, the average diesel price in Ireland stood at €1.68 per litre, a slight decrease from €1.71 in July (rte.ie). However, motorists should be aware that a carbon tax increase, effective from October 9, 2025, will raise the cost of diesel by approximately €0.02 per litre. This adjustment is part of Ireland’s ongoing efforts to meet environmental targets (breakingnews.ie).
| Month | Diesel Price (€ per litre) |
|---|---|
| Oct 2024 | 1.71 |
| Nov 2024 | 1.73 |
| Dec 2024 | 1.75 |
| Jan 2025 | 1.75 |
| Feb 2025 | 1.81 |
| Mar 2025 | 1.80 |
| Apr 2025 | 1.75 |
| May 2025 | 1.72 |
| Jun 2025 | 1.69 |
| Jul 2025 | 1.71 |
| Aug 2025 | 1.68 |
Petrol & Unleaded Rates – October 2025
Unleaded petrol prices have experienced a slight decline, averaging €1.70 per litre in August 2025, down from €1.73 in July (rte.ie). This reduction offers some relief to drivers, especially those with petrol-powered vehicles.
| Month | Petrol Price (€ per litre) |
|---|---|
| Oct 2024 | 1.71 |
| Nov 2024 | 1.73 |
| Dec 2024 | 1.75 |
| Jan 2025 | 1.75 |
| Feb 2025 | 1.81 |
| Mar 2025 | 1.80 |
| Apr 2025 | 1.75 |
| May 2025 | 1.72 |
| Jun 2025 | 1.69 |
| Jul 2025 | 1.71 |
| Aug 2025 | 1.72 |
Upcoming Carbon Tax Increase
A significant development for October 2025 is the scheduled increase in the carbon tax rate from €56 to €63.50 per tonne. This hike is expected to raise fuel prices by approximately €0.02 per litre for both petrol and diesel. For a typical 60-litre tank, this translates to an additional €1.20 at the pump (breakingnews.ie).
Impact of Biofuel Legislation
Starting in 2025, Ireland has implemented legislation requiring a higher proportion of biofuels in petrol and diesel. This change has contributed to a 2-cent increase per litre in fuel prices, attributed to higher biofuel content and increased shipping costs due to geopolitical factors and currency fluctuations (thesun.ie).
Quick Fuel Price Snapshot
| Fuel Type | Current Price (€ per litre) | Price Change (July to August 2025) |
|---|---|---|
| Diesel | 1.68 | -0.03 |
| Petrol | 1.70 | -0.03 |
Frequently Asked Questions (FAQs)
1. Why are fuel prices increasing in Ireland?
Fuel prices are influenced by several factors, including global oil market fluctuations, changes in exchange rates, and domestic policies such as carbon tax adjustments and biofuel legislation.
2. How will the carbon tax increase affect my monthly fuel expenses?
With the carbon tax set to rise from €56 to €63.50 per tonne, drivers can expect an additional €1.20 per full 60-litre tank of fuel, impacting monthly fuel costs depending on individual usage (breakingnews.ie).
3. Are there any government measures to offset rising fuel prices?
While the government has extended the 9% VAT rate on domestic gas and electricity until October 31, 2025, there are no current measures to reduce fuel taxes (vatcalc.com).
4. How can I manage increasing fuel costs?
Consider adopting fuel-efficient driving habits, maintaining your vehicle regularly, and exploring alternative transportation options such as carpooling or public transit to mitigate the impact of rising fuel prices.
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