# When do fuel stations change their prices in France?

Window: Jun 25, 2026 – Sep 22, 2026 · 90 days · rebuilt every night

- A station in France changes its SP95-E10 price 1.69 times a week on average, and a price that has just changed then holds for 2 days before the next one.
- On an ordinary day 25.4% of the stations in France change their price; on the busiest day of the window, 53.6%.
- The busiest weekday is Friday, with 21.5% of all changes; the quietest is Sunday, with 3.4%.
- An increase moves the price by 0.030 EUR/L on average, a cut by 0.027 EUR/L. Over the window there were 118 345 changes upward and 55 940 downward.
- Half of all the price changes of the last 90 days happened on just 30 of them.
- Across the window the market median went from 1.869 EUR/L to 2.169 EUR/L.
- Where the source carries a clock of its own, most changes land between 09:00 and 10:00 — 15% of 6 915 changes carrying a timestamp in the sample.

## SP95-E10

- Changes per station: 1.69 / week
- A price holds for: 2 days
- Stations: 8 024 · 174 285 price changes

| Which weekday | increase | cut |
|---|---:|---:|
| Monday | 17 178 | 7 406 |
| Tuesday | 21 111 | 7 122 |
| Wednesday | 18 931 | 10 024 |
| Thursday | 20 872 | 7 839 |
| Friday | 24 443 | 12 973 |
| Saturday | 11 626 | 8 867 |
| Sunday | 4 184 | 1 709 |

- increase: 0.030 EUR/L (n=118 345)
- cut: 0.027 EUR/L (n=55 940)

## Diesel (Gazole)

- Changes per station: 1.95 / week
- A price holds for: 2 days
- Stations: 9 916 · 249 148 price changes

| Which weekday | increase | cut |
|---|---:|---:|
| Monday | 23 795 | 10 021 |
| Tuesday | 30 567 | 10 335 |
| Wednesday | 27 593 | 12 496 |
| Thursday | 31 746 | 9 009 |
| Friday | 38 911 | 15 429 |
| Saturday | 19 573 | 11 245 |
| Sunday | 6 122 | 2 306 |

- increase: 0.040 EUR/L (n=178 307)
- cut: 0.032 EUR/L (n=70 841)

## How this was measured

One price per station per day. The daily history table holds one row per station, fuel and day. A row is also written back to the date the source itself gives as the moment of the change, so a change lands on the day the operator made it, not on the day we happened to read it.
A change is two consecutive days in a station’s series with different prices; it is counted on the second of the two. If more than 3 days separate the two readings, the pair is dropped — there is no way to say which day the price moved.
A market-wide move — a “wave” — is a run of days on which at least 35% of the stations with a price changed it; the threshold is not a fixed number but the market’s own median plus half the way to its 95th percentile. Within a wave each network gets the centre of gravity of its own changes; the network whose centre falls earliest moved first. Waves found in this window: 7.
The figures are rebuilt once a night from the full history, not on every visit.

## What this cannot tell you

At most one change per station per day is visible, because the history keeps one price per station per day. A station that changes twice in one day is counted once.

Source of the prices: Prix-Carburants (Ministere de l'Economie, Etalab Open License). Analysis: fuel-prices.eu.

Live fuel prices in %s: https://www.fuel-prices.eu/live/france/

HTML: https://www.fuel-prices.eu/live/france/price-changes/
JSON: https://www.fuel-prices.eu/live/france/price-changes/data.json