Weekly bulletin, 19 to 25 October 2026. Published Monday 26 October 2026.
Petrol prices in Merthyr Tydfil: down 0.3p this week to 175.6p
Between Monday 19 October 2026 and Sunday 25 October 2026, the average price of unleaded across 3 filling stations in Merthyr Tydfil fell 0.3p to 175.6p a litre, while diesel fell 0.3p to 199.2p.
Cheapest and most expensive
On Sunday 25 October 2026, prices updated within 30 days, judged against their neighbours.
The last 30 days
Daily averages, in pence per litre. Right-click the image to save it; it is free to publish with a link.
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1 of the 3 stations seen during the week changed at least one price.
The cheapest unleaded in Merthyr Tydfil on Sunday 25 October 2026 was 172.9p at Eg Merthyr Tydfil Pfs, Merthyr Tydfil (CF47 8EB); the most expensive was 177.9p at Rontec Dowlais, Merthyr Tydfil (CF48 3DA), a gap of 5.0p, or £2.50 on a 50-litre tank.
The cheapest diesel was 197.9p at Eg Merthyr Tydfil Pfs, Merthyr Tydfil (CF47 8EB).
Across the UK, unleaded was down 0.7p over the same week, at 173.0p, which puts Merthyr Tydfil 2.6p above the national average.
"Drivers in Merthyr Tydfil paid 0.3p less for a litre of unleaded this week. On a 50-litre tank, that is £0.15 less than a week earlier. The gap between the cheapest and the dearest forecourt in Merthyr Tydfil is 5.0p, so where you fill up still matters more than when." said Jacky A., editor of fuelpricetoday.co.uk.
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Petrol prices in Merthyr Tydfil: down 0.3p this week to 175.6p Between Monday 19 October 2026 and Sunday 25 October 2026, the average price of unleaded across 3 filling stations in Merthyr Tydfil fell 0.3p to 175.6p a litre, while diesel fell 0.3p to 199.2p. 1 of the 3 stations seen during the week changed at least one price. The cheapest unleaded in Merthyr Tydfil on Sunday 25 October 2026 was 172.9p at Eg Merthyr Tydfil Pfs, Merthyr Tydfil (CF47 8EB); the most expensive was 177.9p at Rontec Dowlais, Merthyr Tydfil (CF48 3DA), a gap of 5.0p, or £2.50 on a 50-litre tank. The cheapest diesel was 197.9p at Eg Merthyr Tydfil Pfs, Merthyr Tydfil (CF47 8EB). Across the UK, unleaded was down 0.7p over the same week, at 173.0p, which puts Merthyr Tydfil 2.6p above the national average. "Drivers in Merthyr Tydfil paid 0.3p less for a litre of unleaded this week. On a 50-litre tank, that is £0.15 less than a week earlier. The gap between the cheapest and the dearest forecourt in Merthyr Tydfil is 5.0p, so where you fill up still matters more than when." said Jacky A., editor of fuelpricetoday.co.uk. Source: fuelpricetoday.co.uk, weekly bulletin for Merthyr Tydfil, 19 to 25 October 2026. https://fuelpricetoday.co.uk/press/2026-W43/town-merthyr-tydfil Prices are pence per litre, computed from the government's Fuel Finder open data. Free to use with a link to the source.
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Name, brand, postcode, coordinates, unleaded and diesel on 19 Oct and 25 Oct.
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Free to use, quote and publish, including the chart and the data, with a link to https://fuelpricetoday.co.uk/press/2026-W43/town-merthyr-tydfil or a credit to fuelpricetoday.co.uk. Prices are computed from the Fuel Finder open data published by the Department for Energy Security and Net Zero under the Open Government Licence v3.0. Questions, a figure for another area, or a quote: contact@fuelpricetoday.co.uk.
How the figures are computed
Each average is the mean of the prices changed in the last 30 days at the filling stations of Merthyr Tydfil, motorway services left out and prices more than 25p from the day's median discarded. The cheapest and most expensive stations are judged against the stations within 10 km, so that a typing error cannot top the list. The week runs from Monday to Sunday. Details on how this site works.