On 21 August 2026, the national average price of diesel in France reached €2.24/l, the highest value in our daily series, which covers 26 June – 21 August 2026. That is €0.004 a litre above the previous peak of €2.24/l, recorded on 20 August 2026.
Correction (26 September 2026): figures recalculated from the complete daily data, after we removed prices from stations that had left the official feed. Earlier version — Diesel, national average on 21 August 2026: €2.235/l (now €2.240/l).
Correction (27 September 2026): 25 June 2026 was a partial day (only a little over half of the usual number of stations reported), which our daily series leaves out, so the period now starts on 26 June 2026, the first complete day. Prices and percentages are unchanged. Earlier version — period covered: 25 June 2026 – 21 August 2026.
Our daily national series for this market covers 26 June – 21 August 2026 — 57 days — so no comparison here reaches further back than that. Between 14 August 2026 and 21 August 2026 the national average rose 1.3%, from €2.21/l to €2.24/l. The current level is 18.3% above the 26 June – 21 August 2026 low of €1.89/l, reached on 29 June 2026.
Percentages, price differences and fill-up estimates are calculated from unrounded national averages. Prices shown in prose and tables are rounded to two decimal places.
Key figures
| Fuel | 20 Aug | 21 Aug | Change | 14 – 21 August 2026 | Stations |
|---|---|---|---|---|---|
| Diesel | €2.24/l | €2.24/l | +0.2% | +1.3% | 9,707 / 9,707 |
| Petrol | €2.02/l | €2.02/l | +0.1% | +0.9% | 7,759 / 7,758 |
Across all reporting stations the change is +0.2%; across the 9,707 stations that reported on both days it is +0.2%. The panel covers 100.0% of the smaller daily sample.
| Metric | Value | Stations |
|---|---|---|
| All reporting stations | +0.2% | 9,707 / 9,707 |
| Matched-station panel | +0.2% | 9,707 |
| Panel coverage | 100.0% | 9,707 |
France diesel average, 26 June – 21 August 2026
Chart values as a table
| Day | Average | Stations |
|---|---|---|
| €1.90/l | 9,726 | |
| €1.90/l | 9,726 | |
| €1.90/l | 9,724 | |
| €1.89/l | 9,724 | |
| €1.90/l | 9,724 | |
| €1.90/l | 9,726 | |
| €1.90/l | 9,725 | |
| €1.89/l | 9,724 | |
| €1.90/l | 9,724 | |
| €1.90/l | 9,724 | |
| €1.91/l | 9,724 | |
| €1.92/l | 9,724 | |
| €1.92/l | 9,725 | |
| €1.93/l | 9,726 | |
| €1.97/l | 9,727 | |
| €1.98/l | 9,727 | |
| €1.98/l | 9,725 | |
| €1.99/l | 9,724 | |
| €1.99/l | 9,724 | |
| €2.01/l | 9,724 | |
| €2.04/l | 9,724 | |
| €2.08/l | 9,722 | |
| €2.09/l | 9,722 | |
| €2.09/l | 9,722 | |
| €2.11/l | 9,724 | |
| €2.13/l | 9,725 | |
| €2.14/l | 9,727 | |
| €2.15/l | 9,726 | |
| €2.18/l | 9,728 | |
| €2.18/l | 9,727 | |
| €2.19/l | 9,727 | |
| €2.20/l | 9,726 | |
| €2.20/l | 9,726 | |
| €2.20/l | 9,726 | |
| €2.21/l | 9,725 | |
| €2.22/l | 9,723 | |
| €2.23/l | 9,723 | |
| €2.23/l | 9,721 | |
| €2.23/l | 9,720 | |
| €2.23/l | 9,720 | |
| €2.22/l | 9,720 | |
| €2.21/l | 9,719 | |
| €2.19/l | 9,721 | |
| €2.18/l | 9,721 | |
| €2.18/l | 9,717 | |
| €2.18/l | 9,718 | |
| €2.18/l | 9,718 | |
| €2.19/l | 9,718 | |
| €2.20/l | 9,718 | |
| €2.21/l | 9,716 | |
| €2.21/l | 9,714 | |
| €2.21/l | 9,714 | |
| €2.22/l | 9,714 | |
| €2.22/l | 9,715 | |
| €2.23/l | 9,707 | |
| €2.24/l | 9,707 | |
| €2.24/l | 9,707 |
Calculation details
Values below are the unrounded daily national averages used for every figure in this article, shown to 6 decimal places. Percentage change = (later average − earlier average) ÷ earlier average × 100.
| Metric | Value | Unit |
|---|---|---|
| Diesel, daily national average on 20 August 2026 | 2.236194 | EUR/l |
| Diesel, daily national average on 21 August 2026 | 2.240245 | EUR/l |
| Difference, 20 August 2026 to 21 August 2026 | 0.004052 | EUR/l |
| Percentage change, 20 August 2026 to 21 August 2026 | 0.1812 | % |
| Diesel, daily national average on 14 August 2026 | 2.210973 | EUR/l |
| Percentage change, 14 August 2026 to 21 August 2026 | 1.3240 | % |
| Diesel, daily national average on 29 June 2026 | 1.894453 | EUR/l |
| Percentage change, 29 June 2026 to 21 August 2026 | 18.2529 | % |
Source and method
Prices are reported by station operators to prix-carburants.gouv.fr (Ministère de l’Économie, des Finances et de la Souveraineté industrielle et numérique). We collect them once a day and calculate the averages in this article ourselves. The national average is the unweighted mean of the 9,707 stations that reported a valid price for diesel, after we drop readings outside our plausibility range. Full method: how we calculate.
This article reports only what our calculations from station-price data show. It does not attribute the change to any cause.
The data behind this article
Data details
| Data snapshot | 21 August 2026 (Europe/Paris) |
|---|---|
| Method version | 2026-08-06.1 |
| Template version | 2.0.0 |
| Source freshness | Last collection cycle of the day: 2026-08-21 12:00:20; 9,707 readings collected that day. |
| Included | Gazole (B7): 9,707 stations with a valid price |
| Excluded | 0 readings outside the plausibility range 0.50–5.00 a litre, 0 flagged by the source, 0 from stations not in our catalogue |
| Matched coverage | 9,707 stations reported on both 20 August 2026 and 21 August 2026 — 100.0% of the smaller daily sample |
| Corrections | 2 |