Rain Gear in August?

Chris, I wouldn't. Pack as light as possible ( assume the best ) If it's raining, buy an umbrella or a rain jacket ( deal with problems only as they arise ). Who knows, you might get the chance to wait out a quick shower under an awning with fellow tavelers or a native and strike up a lifetime friendship. Have a great time!

You'll be there in the absolute, all-time, world-class dry season. And if you don't take a rain jacket you'll find out the meaning of average real fast. A waterPROOF, hooded rain jacket wads up into something that fits into two-thirds of a cereal box, weighs nothing, and is as much a travel essential as clean socks and spare false teeth. It also comes in handy for the morning and evening chill (you've checked the temps, right?) and the odd blow or chilly restaurant. It can also work miracles in picky cathedrals.

We were so hot in Italy last August, we were PRAYING for rain! But we never got a drop.

I just returned last week from Italy-4 days in Venice and the 2 week Village Italy tour. I came close to leaving my rainproof jacket at home and was so happy I didn't make that mistake. I was in Italy last during the 2003 heat wave and couldn't imagine needing it. This time, I hiked to Civita in the rain with fog swirling (amazing sight by the way) and also had rain in Orvieto, Siena, Lake Orta. and during several bus rides. Our guide, who has lead RS tours for 8 years had to buy a long sleeve shirt because she was cold. The weather patterns are odd this year. I say take the rain gear.

I would take a very small lightweight umbrella and a windbreaker with a hood. I'm usually on the chilly side in the mornings so I always wear a lightweight jacket and then take it off when it warms up in the afternoon. You may need it as Karen said early in the mornings or in the evenings or in a chilly restaurant, etc. I'd rather have it with me if I need it than waste precious sightseeing time finding one to purchase.

In Naples (on the waterfront) and in Rome (Flaminia) I've been caught in mid afternoon thunder storms in an otherwise dry Summer, much like many parts of the US. The downpour was brief and getting soaked did not matter; but the lightening was July 4th bombardment quality. In the city, it was no big deal, it was just an excuse for the huddled masses to mingle in a bar. But it was not a time to be hiking in an exposed area with no overhead retreat.

As Ed said, a packable waterproof rain shell packs smaller and weighs less than a travel umbrella and is more useful. You may never see rain, but may need a coverup for a church. Alternatively, you may get heavy rain and get soaked without one.

Thanks for all of the replies. My REI rainproof jacket has made the cut.