We are considering a trip to Tuscany in July 2019 with an apartment in Lucca as our home base for a month. I understand the climate will be hot and humid outside. A/C is a must. I have found in my travels that different parts of the world have a different concept of what "air conditioning" means... What is typical in Lucca? If there's a heatwave, and you're staying in a vacation rental with air conditioning on full blast, would you expect to feel cold, cool, lukewarm, or sweating through your sheets?