Portugal's Inflation Rose to 3.3% in August, and Almost All of It Is Fuel

Portugal’s inflation went back up in August. INE’s flash estimate, released on 31 August 2026, puts the annual rate at 3.3%, up from 3.0% in July — and INE says the acceleration “is almost entirely explained by the increase in the prices of fuels”. Core inflation, which strips out energy and unprocessed food, barely moved: 2.7% against July’s 2.6%.

In mid-August we reported inflation easing to 3.0%. That relief lasted exactly one release.

There is nothing to file and no deadline. This is a budget story: if you live here, drive here, or are pricing a move for the autumn, these are the numbers to update. The figures are a flash estimate — definitive data arrive on 10 September 2026.

What do the August numbers say?

The flash estimate, with July for comparison:

Annual rate	July 2026	August 2026 (flash)
Headline CPI	3.0%	3.3%
Core (no energy, no unprocessed food)	2.6%	2.7%
Energy products	8.7%	12.2%
Unprocessed food	3.7%	3.4%
12-month average	2.6%	2.7%
HICP (the EU-comparable measure)	3.1%	3.6%

The monthly rate agrees: prices rose 0.1% in August, after a 0.5% fall in July.

The gap between headline and core carries the message. Energy jumped from 8.7% to 12.2% in one month; unprocessed food actually slowed. Strip out the volatile lines and inflation is close to flat — core moved from 2.6% to 2.7%, and the 12-month average sits at 2.7%. This is a fuel spike, not a broad surge.

Why is fuel doing the pushing?

The government’s own weekly fuel-tax orders point the same way. Portugal runs a temporary ISP discount — a give-back of extra VAT that grows as pump prices climb further above a March baseline; our 10 August post explains the mechanism. Between the order in force from 10 August and Portaria n.º 395-A/2026/1, in force from 31 August 2026, the give-back grew from €59.16 to €71.63 per 1,000 litres on diesel and from €35.39 to €51.62 on petrol — roughly 1.2 and 1.6 cents a litre more handed back. The cents conversions are our arithmetic; the portarias (ministerial orders) publish only the rates. The underlying mainland ISP rates from 31 August are €445.90 per 1,000 litres on petrol and €289.97 on diesel, each including the road-service levy.

A growing discount is the state’s own signal that pump prices have been climbing: the mechanism pays out only while prices exceed the week of 2–6 March by more than 10 cents a litre, and the new order says that condition is now met on both fuels.

The order names the cause — the geopolitical and military crisis in the Middle East — and expects diesel and petrol to fall in the coming week. That expectation resets every Monday; it promises nothing beyond the week.

At the pump, the give-back is now worth roughly 7.2 cents a litre on diesel and 5.2 cents on petrol — our conversion again. Across the whole basket, INE’s verdict stands: the August acceleration is almost entirely fuel.

Is bread really going to cost more from October?

Probably, and the industry has said so out loud. On 31 August, Débora Barbosa — president of ACIP, the bakery trade association — told Jornal Económico to expect price adjustments on bread from October. Wheat is up about 37% since late June, pushed by the war in the Black Sea and drought across Europe; bakeries’ raw materials (bread wheat, yeast) are up around 10% on average since June.

Two facts keep the number in proportion:

• Flour is only about 14% of the cost of a loaf — personnel runs around 40%, distribution 15.5%, energy 11%. A 37% wheat rise does not become a 37% bread rise.
• Portugal produces only about 20% of the cereals it consumes, and roughly 5% of its wheat — world prices land here directly, with little domestic cushion.

Expect the padaria (bakery) bill to creep, not jump.

What should you do next?

• Budgeting a move this autumn? Re-check the sums against the cost of living in Portugal — its 2026 ranges are the base your budget should start from, and rents move faster than the CPI.
• Driving — resident or visitor with a hire car? Live pump prices sit on the official comparator at precoscombustiveis.dgeg.gov.pt, and our fuel-tax explainer covers why the tax inside a litre changes every Monday.
• Travelling around the country anyway? Getting around Portugal is the fuel-light way to do it — trains and coaches dodge the pump entirely.
• Want July’s numbers, the ones August reversed? They are in our 14 August roundup.

This is general information, not financial advice. The August figures are INE’s flash estimate of 31 August 2026; definitive data are due on 10 September 2026 — verify at ine.pt before you build a budget on them.