
That is a 4.6% rise on the same month last year, according to a flash estimate from the national statistics office, INE.
Revenue grew faster than either guest numbers or overnight stays, a sign that spending per visitor is climbing alongside volume.
Guest numbers were up 1.9% to 3.9 million, while overnight stays rose 1.7% to 10.9 million. Both domestic and international travellers contributed to the increase. Portuguese residents booked 1.5% more nights, reaching 3.9 million, while overseas visitors delivered 7 million overnight stays, up 1.9%. That marked a pickup in foreign demand, which had grown by just 0.8% the month before.
The UK stayed Portugal's single biggest source of overseas visitors, contributing 17.1% of non-resident overnight stays and growing 3.4% year on year.
Spain was close behind in second place, with a 15.6% share and growth of 5%. France bucked the trend, slipping into its third straight month of decline, with overnight stays from French visitors down 7.6%.

Further down the table, Poland and Canada stood out as the fastest-growing source markets, each posting gains above 11%, at 11.7% and 11.2% respectively. Taken together, Portugal's ten largest foreign markets accounted for 79.2% of all non-resident overnight stays in August. The Netherlands was the only other major market in decline, down 1.1%.
Regionally, the North led the growth figures with overnight stays up 4.5%, ahead of Alentejo's 2.6% rise. In absolute terms, the Algarve kept its position as Portugal's leading destination, drawing 30.1% of all overnight stays, with Greater Lisbon in second place on 19.3% and the North third on 18.2%.
"These numbers point to a tourism sector that keeps finding new sources of growth, whether that's emerging markets like Poland and Canada or regions outside the traditional Algarve and Lisbon strongholds," said Paul Stannard, chairman and founder of Portugal Pathways and the Portugal Investment Owners Club. "For anyone weighing up Portugal as a place to invest or relocate to, that kind of sustained performance across the economy is a reassuring signal."
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