Palermo records about 600mm of rain across roughly 55 wet days a year, which is a 15% chance on an average day. November is the wettest month at 95mm (16% of the annual total) and July the driest at 3mm. Local rain type: brief showers. Palermo is hot and dry in summer — rain is almost unheard of June-August. Autumn storms arrive dramatically but briefly. Pack a light umbrella only for winter visits.
Chance of rain on an average day: 15%
Rainfall climatology for Palermo. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 600mm |
| Rain days per year | 55 |
| Odds on an average day | 15% |
| Wettest month | November — 95mm over 9 days |
| Driest month | July — 3mm over 1 days |
| Rain type | brief showers |
| Best dry window | June through August averages just 16mm total — one of the driest summer periods in the Mediterranean. |
| Worst rain window | October and November bring intense but short-lived storms — Palermo can receive its monthly average in a single afternoon. |
November delivers 3067% more rain than July (95mm vs 3mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 16% of the annual total, so rain in Palermo is spread through the year — there is no season you can rely on being dry.
Palermo rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 9 days in November against 1 in July — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 80mm | 8 | 27% | 15°C |
| February | 65mm | 6 | 20% | 15°C |
| March | 50mm | 5 | 17% | 18°C |
| April | 40mm | 4 | 13% | 22°C |
| May | 20mm | 2 | 7% | 28°C |
| June | 5mm | 1 | 3% | 32°C |
| July | 3mm | 1 | 3% | 35°C |
| August | 8mm | 1 | 3% | 35°C |
| September | 35mm | 3 | 10% | 32°C |
| October | 80mm | 8 | 27% | 28°C |
| November | 95mm | 9 | 30% | 22°C |
| December | 85mm | 8 | 27% | 18°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Palermo we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Palermo records rain on roughly 55 days a year — about a 15% chance on any given day — totalling around 600mm.
November, with about 95mm over 9 rain days. That is 16% of the entire year's rainfall in a single month.
July is the driest month at 3mm across roughly 1 days. June through August averages just 16mm total — one of the driest summer periods in the Mediterranean.
Palermo is hot and dry in summer — rain is almost unheard of June-August. Autumn storms arrive dramatically but briefly. Pack a light umbrella only for winter visits.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.