chess, what's 25*C in American? I was out at the river a week or two ago - it was 113*F and raining. Yuk.
Tom, I've only tried a small handful of ports and sherries. A couple were in friends' kitchens during high school, so I'm sure they were low grade. If I remember right, the flavors are of dried fruit, like figs and prunes, right? Not my cup o' tea.
Here's the local guys' website if you're interested:

http://www.temeculawines.org/