Swiss Inflation Rises to 0.8% as Fuel and Housing Costs Climb

Switzerland’s annual inflation rate rose to 0.8% in August from 0.4% in July, as higher housing rents and petroleum-product prices helped lift consumer costs. The Consumer Price Index increased 0.4% from the previous month to 101.5 points, with December 2025 set at 100, the Federal Statistical Office said Thursday.

August’s 0.4% monthly increase reversed July’s 0.1% decline. In its August CPI release, the FSO cited rising housing rentals as one of several drivers and said prices also increased for petrol, diesel, heating oil and in-patient hospital services. International package holidays, car rentals and car sharing became cheaper, while prices for supplementary accommodation also fell.

Rents and petroleum products reverse July’s decline

July’s CPI had slipped to 101.1 points, leaving annual inflation at 0.4%. By August, the index had gained 0.4 points and the year-over-year rate had risen by 0.4 percentage point. The FSO’s summary release did not assign the entire increase to one category, instead identifying several components that moved in opposite directions.

Recent monthly data show how quickly the composition of Swiss inflation has shifted. Annual inflation stood at 0.6% in May, eased to 0.5% in June and then to 0.4% in July before moving up to 0.8% in August. The CPI rose 0.2% in May, was unchanged in June and fell 0.1% in July, so the August increase was also the largest monthly move in that four-month sequence.

Some of the categories highlighted in August had already been changing direction during the summer. Housing rents and petrol contributed to the May increase, according to the FSO, while heating oil became cheaper that month. In June, heating oil and diesel prices declined. August brought increases in all three petroleum categories named in the latest release, alongside higher rents.

The figures need to be read on two time horizons. The annual inflation rate measures the change from August 2025, while the 0.4% monthly figure measures the change from July 2026. The CPI level of 101.5 uses December 2025 as its new reference point, so it should not be read as the annual inflation rate. Taken together, the data show both a higher price level in August and a faster year-over-year increase than the month before.

Inflation stays within the SNB’s price-stability range

Even after the August increase, Swiss inflation remains within the Swiss National Bank’s definition of price stability, which is an annual inflation rate between 0% and 2% over the medium term. The central bank does not base policy on a single monthly CPI reading. Its framework puts particular emphasis on the conditional inflation forecast and on whether price stability is likely to be maintained over time.

At its June monetary policy assessment, the SNB left its policy rate unchanged at 0%. It said inflation had risen in the preceding months because of higher energy prices, with the move from 0.1% in February to 0.6% in May mainly attributable to oil products. At the same time, the bank said medium-term inflationary pressure was virtually unchanged from its previous assessment.

In June, the SNB’s conditional forecast anticipated a slight further increase in inflation in the coming quarters before some easing in the first half of 2027 as the effect of higher energy prices diminished. Assuming the policy rate remained at 0% throughout the forecast horizon, the bank projected average inflation of 0.6% in 2026, 0.6% in 2027 and 0.7% in 2028.

August’s 0.8% year-over-year reading is not directly comparable with that 0.6% full-year forecast. One is a single month’s annual rate, while the other is an average for the calendar year. The new CPI data therefore do not, by themselves, establish that the SNB’s 2026 projection has been exceeded. They do show that the headline rate has moved above the June forecast’s full-year average at a point when the central bank had already identified energy as an important source of near-term inflation.

August also contained offsetting price movements beneath the headline rate. Rents and several fuel categories pushed upward, but travel-related items and supplementary accommodation moved lower. The FSO’s release does not establish that the increase was broad across the entire consumer basket, which is one reason the monthly headline should not be treated as a complete measure of underlying price pressure.

September policy meeting comes before the next CPI report

The August inflation data arrive three weeks before the SNB’s next scheduled monetary policy assessment on September 24. The bank’s calendar lists the policy press release for 9:30 a.m. local time, followed by its introductory remarks and news conference at 10 a.m. That meeting will give the SNB its next opportunity to update the conditional inflation forecast and explain how it views the latest price developments.

For the September decision, the August CPI adds a fresh reading to a summer sequence that moved from 0.6% annual inflation in May to 0.4% in July and then back to 0.8%. At 0.8%, inflation remains inside the SNB’s price-stability range, while the components named by the FSO overlap with the energy pressures that the central bank discussed in June. Housing rents provide a separate domestic cost element in the latest monthly increase.

According to the FSO’s published 2026 calendar, the next CPI release, covering September, is scheduled for October 1. The SNB’s September policy assessment will therefore come before another monthly inflation report is available. Its September 24 decision and updated forecast will be the next concrete official indication of how the central bank is weighing the renewed rise in headline inflation.