April and May
Go nowWarm, long, and everything open
The best stretch of the year: mild days, gardens and hills green, and the light that the whole place was built for. Easter moves between late March and late April and it is the single busiest weekend in the city — check where it falls before booking. Prices are high and the museums fill, so reserve.
September and October
Go nowThe heat gone, the harvest on
September keeps summer warmth without the July weight, and October brings the vendemmia in the hills and the first cool evenings. Fewer school groups, softer light, and the Tuscan day trips at their best. The most comfortable window if you can only pick one.
March
Worth it, butCheap, quiet, and unreliable
Cold mornings, changeable weather and lower prices, with the museums noticeably emptier. The city works perfectly in the rain because most of what you came for is indoors. Gardens and hill towns are still bare.
June
Worth it, butLong evenings, and the heat arriving
Light until late and the outdoor life starting, but the valley heat builds through the month and the crowd arrives with it. Good if you plan mornings and evenings and treat the afternoon as indoor time.
November
Worth it, butWet, dark and almost empty
The rainiest month and the quietest, with prices at their lowest and the Uffizi walkable without a reservation on many days. If your trip is mostly museums, this is an underrated month. If it is Tuscany, it is not.
July and August
Think twiceTrapped heat, full streets, shut kitchens
The valley holds the heat, the stone radiates it back after dark and the centre is at its most crowded. Many family-run restaurants close for two or three weeks in August. This is the one window where the city is genuinely worse than its reputation, and it is also the most expensive.
December, January and February
Think twiceCold, damp and short on daylight
Grey, chilly and often foggy in the basin, with early dark and the hill towns half-shut. Christmas and New Year are a brief expensive peak inside an otherwise cheap stretch. The art is all still there; the city around it is not doing much.