What is the average petrol price in Welwyn?

The average unleaded (E10) petrol price in Welwyn is currently 175.9p per litre (approx. £8.00/gal), based on live data from 1 forecourt reporting this grade. Prices are updated every 30 minutes from official UK government data.

What is the average diesel price in Welwyn?

The average diesel (B7) price in Welwyn is currently 198.9p per litre (approx. £9.04/gal). This is based on live data from forecourts in the area, updated every 30 minutes.

Which is the cheapest petrol station in Welwyn?

BP at Welwyn By-pass, Welwyn, Hertfordshire currently has the cheapest reported unleaded petrol in Welwyn at 175.9p per litre (approx. £8.00/gal). Prices change regularly, so check this page for the latest.

How do I find the cheapest fuel near Welwyn?

Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.

Live prices

Cheapest petrol and diesel prices in Welwyn

1 forecourt tracked in Welwyn (1 reporting unleaded (E10), 1 reporting diesel (B7), 1 reporting premium (E5), 1 reporting super diesel). Prices last refreshed at 5:02pm on 20 September 2026.

The cheapest reported unleaded petrol (E10) in Welwyn is £8.00 a gallon (175.9p per litre) at BP, Welwyn By-pass, Welwyn, Hertfordshire. That local average is 3.4p per litre above the UK average of 172.5p.

The average is unchanged since yesterday. The average has risen 4.0p per litre since last week.

Prices last refreshed at 5:02pm on 20 September 2026, supplied through the official UK Government fuel price open data scheme and checked every 30 minutes.

At 175.9p per litre, the cheapest unleaded in Welwyn is the highest we have recorded here in 4 weeks. The Welwyn average has risen 4.0p a litre over the past week.

Unleaded Prices

Unleaded (E10)

Highest: £8.00/gal175.9p/L
Average: £8.00/gal175.9p/L
Lowest: £8.00/gal175.9p/L

Diesel Prices

Diesel (B7)

Highest: £9.04/gal198.9p/L
Average: £9.04/gal198.9p/L
Lowest: £9.04/gal198.9p/L

Premium Unleaded Prices

Premium Unleaded (E5)

Highest: £8.95/gal196.9p/L
Average: £8.95/gal196.9p/L
Lowest: £8.95/gal196.9p/L

Super Diesel Prices

Super Diesel (SDV)

Highest: £10.00/gal219.9p/L
Average: £10.00/gal219.9p/L
Lowest: £10.00/gal219.9p/L

All forecourts in Welwyn

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1 forecourt in Welwyn, with live prices and full addresses. Showing 1 to 1.

Cheapest unleaded e10Nodeway Sf Connect

Welwyn By-pass, Welwyn, Hertfordshire · AL6 9HP

Usually cheapest midnight to 5am, priciest 5pm to 10pm here

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Diesel B7

Premium E5

Super Diesel

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Answers come straight from recorded official price data, refreshed every 30 minutes.

Cheapest reported unleaded

Welwyn By-pass, Welwyn, Hertfordshire

175.9p/L

Cheapest reported diesel

Welwyn By-pass, Welwyn, Hertfordshire

198.9p/L

By fuel grade in Welwyn

Cheapest unleaded petrol (E10) in Welwyn Cheapest diesel (B7) in Welwyn Cheapest premium unleaded (E5) in Welwyn Cheapest super diesel in Welwyn 24-hour petrol stations in Welwyn

Nearby areas

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Prices are sourced from official UK government fuel-price data (Open Government Licence v3.0). Updated every 30 minutes.

Questions about fuel prices in Welwyn

What is the average petrol price in Welwyn?: The average unleaded (E10) petrol price in Welwyn is currently 175.9p per litre (approx. £8.00/gal), based on live data from 1 forecourt reporting this grade. Prices are updated every 30 minutes from official UK government data.
What is the average diesel price in Welwyn?: The average diesel (B7) price in Welwyn is currently 198.9p per litre (approx. £9.04/gal). This is based on live data from forecourts in the area, updated every 30 minutes.
Which is the cheapest petrol station in Welwyn?: BP at Welwyn By-pass, Welwyn, Hertfordshire currently has the cheapest reported unleaded petrol in Welwyn at 175.9p per litre (approx. £8.00/gal). Prices change regularly, so check this page for the latest.
How do I find the cheapest fuel near Welwyn?: Use the search box above to enter your postcode. fuel.co.uk will show you every forecourt ranked cheapest first, with live prices updated every 30 minutes from the GOV.UK Fuel Finder.