The maker of Guinness, Baileys, Johnnie Walker Scotch and Smirnoff vodka reported net sales of £6.4 billion and operating profit of £2 billion, up 14.5 per cent and 28 per cent respectively.
Shares in Diageo were trading up 4.1% at 2,228.61 pence on Thursday, the third best performer in the FTSE 100.
The company said the figures reflected accelerated organic growth and favourable exchange rates.
Despite the boost from the pound, Diageo left results expectations unchanged for the full financial year.
It noted at the time - just a month after the United Kingdom voted to leave the European Union - that the depreciation of sterling in the run up to and following the vote would help its results going forward.
The company said sterling's Brexit-induced slump against the USA dollar and the euro helped push net sales higher, with the pound's weakness set to bolster full-year sales and profits by £1.4 billion and £460 million respectively.
Diageo's Scotch brands account for more than 25% of the company's sales and grew 6% during the six-month period, an improvement over the previous year's 1% sales gain of its Scotch portfolio.
Organic operating profit grew 4.4 per cent, in line with top line growth, driven by gross margin improvement, good progress on productivity offset by implementation costs, as well as the profit on the sale of the United Breweries shares in the prior period.
In Ireland overall net sales rose by a more modest 1%, the group's premium spirits saw double digit growth, while net sales of core Guinness beers were 3% higher.
The report also highlights Diageo's strong performance in the United States attributed mainly to it's spirits and scotch growth.
Scotch and Don Julio tequila led growth in Latin America & the Caribbean.
"McDowell's No.1 Whiskey and our Signature brand continue to see the benefit from product re-launch last fiscal year, with McDowell's No.1 up 17% this half and Signature growing 35%".
Diageo, the world's largest distilled drinks company, reported a 4.4 per cent rise in sales for the half-year to December 31st.
That culminated in the Diageo upping its interim by 5% to 23.7 which (yes, you guessed it) was also ahead of expectations (23.5p).