I was in the same boat a few weeks ago.  I went with Glenmorangie.  It’s a highland Scotch, available in a bunch of ages.  I was gonna go with 12-year, but the local packy was out, so went with 18, which is somewhat out of your price range, but went over really well.
Highland Scotches are pretty clean-tasting, good for warmer weather.  If your friend is into peaty/earthy Scotches, you’ll want to get something from Islay like Laphroaig.  (My bud waxes eloquent about Scotch, especially after he’s had a couple.) I drink tea and beer almost exclusively.  The occasional coffee, of if none of the above are available, water.