May, June, September and early October. That is the answer, and if you stop reading here you will not go far wrong.
Palermo sits on the north coast of Sicily, which makes it slightly kinder than the south of the island, but it is still a stone city that holds heat and it still shuts down in the middle of a July afternoon. The season matters more here than in most Italian cities. The wider planning is in my complete guide to Palermo.
Month by month
January and February. Cool, often bright, in the low to mid teens by day. Some rain. The city belongs to itself. Cheapest of the year, and the sea is not an option.
March. Almond and citrus, things reopening, light improving. Still cool.
April. Lovely and green, everything open, Easter processions if the date falls here. The sea is still too cold for most people.
May. One of the two best months. Warm without being punishing, long evenings, everything running, the countryside at its greenest before it burns off.
June. The other best month. Properly warm, the sea has come up, and the crowds have not fully arrived.
July. Hot, regularly above thirty-five degrees. Busy. And the Festino, which is either the reason to come or the reason not to.
August. The hardest month. Peak heat, peak prices, and the city itself half empty in the middle of the month as Palermitani leave for the coast. Ferragosto on the fifteenth is a genuine event on the seafront.
September. Excellent and underrated. The sea is at its warmest after a whole summer, crowds thin from mid month, and the light softens.
October. Good into the middle of the month. Warm days, cooler evenings, swimming still fine early on. Then it turns.
November and December. Quiet and often wet. Santa Lucia in December is a real local occasion.
The festival in July
The Festino di Santa Rosalia is the city’s own festival, and it is not a tourist event.
Rosalia is the patron saint, credited with ending the plague of 1624, and the celebration runs across roughly a week in mid July with the climax on the evening of the fourteenth. There is a procession of an enormous decorated carriage down the main avenue, the streets are hung with arched frames of lights, and it finishes with fireworks over the sea.
If you can be here for it, be here for it. It is the single most Palermitan thing that happens all year.
Understand what you are buying. That week the centre is impassable in the evenings, ordinary sightseeing gets difficult, accommodation is dearer and books out early, and the heat is at its worst. It is worth it. It is not restful.
August, and what it is actually like
I am not going to tell you not to come. Most people travel when they can.
But August in Palermo means the stone is hot to touch by ten in the morning, the streets between two and five are genuinely empty because everyone sensible is indoors, some family-run restaurants close for a fortnight, and the beach at Mondello is full to the water’s edge.
How to make it work. Be out by eight and back in by one. Sleep or read through the afternoon like the city does. Come out again at six and stay out until midnight, because August evenings here are the best evenings of the year. Do the chapel and the markets on your first morning and get them done.
And book air conditioning. Not a fan.
The sea
Swimmable from roughly June to October, with September the warmest water of the year. May is for the committed. April is a walk on the beach.
Details on the beaches themselves are in Mondello and the beaches near Palermo.
What to book ahead, and when
Mid July, around the Festino: accommodation months out.
August: accommodation well ahead, and expect higher prices across the board.
May, June and September: a few weeks is usually enough for somewhere good.
Winter: turn up.
The royal chapel does not usually need booking, but it does close at short notice for official business, which is a different problem and one that no amount of advance planning solves. Go early on your first day.
What closes, and when
Sunday: the markets largely do not run, and a good number of restaurants take Sunday evening or Monday.
Mid August: some family businesses close for one or two weeks around Ferragosto.
The afternoon, all summer: shops and many sights close roughly one until four. This is not laziness, it is the only sane response to the heat, and the city reopens properly at six.
What the weather actually does
Rough figures, because averages hide the thing that matters.
High summer sits in the low to mid thirties and can push higher, with almost no rain from June to August and nights that stay warm.
Spring and autumn run in the low to mid twenties by day, which is the sweet spot for walking a city like this one.
Winter days sit in the low to mid teens with a good deal of sun, and the rain arrives in short heavy bursts rather than a grey drizzle.
The number that matters most is not the temperature but the shade, and in the old centre the narrow streets provide a surprising amount of it. The exposed places are the piazzas and the seafront.
Read also: a Palermo itinerary, where to stay in Palermo, and my complete guide to Palermo.
Frequently Asked Questions
What is the best month to visit Palermo?
May, June, September or early October. All four give warm weather without the extremes of high summer, and the city is lively without being overwhelmed. September has the warmest sea of the year, since the water has had all summer to heat up.
How hot is Palermo in August?
Regularly above thirty-five degrees, and the stone holds the heat well into the evening. The centre empties between about two and five because residents stay indoors. Plan early mornings, a long afternoon break and late evenings, and make sure your room has air conditioning.
When is the Festino di Santa Rosalia?
Mid July, with the climax on the evening of the fourteenth and celebrations running across roughly a week. There is a procession of a great decorated carriage, lights strung down the streets and fireworks over the sea. Book accommodation months ahead if you want to be there for it.
Is Palermo worth visiting in winter?
Yes, if you do not need to swim. Days sit in the low to mid teens with plenty of sun, the city is quiet and cheap, and the museums and churches are all open. It does rain, usually in short heavy bursts rather than all day.
When can you swim in Palermo?
June through to October, with September usually the best of it because the sea has had the whole summer to warm. May is swimmable for the hardy and the water is genuinely cold before that.
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