Climate averages 1991–2020
Palermo weather
in September.
A warm, moderately wet month: the 4th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Palermo: daytime highs average 26.8°C and nights cool to about 20.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 61 mm of rain on roughly 9 days, which makes September a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 28 min on an average September day.
The nearest other city in this atlas is Marsala (89 km away). In September its highs average 26.4°C, about as warm as Palermo, with 42 mm of rain.
Among the 79 cities listed in Italy, Palermo ranks joint 5th of 79 for the warmest September highs and joint 19th of 79 for the driest September (rainfall, lowest first). The mean September high of those 79 cities is 24.3°C; Palermo is 2.5°C warmer than that mean.
From September to October, average highs fall by 3.5°C to 23.3°C, and monthly rainfall rises from 61 mm to 81 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Palermo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.1°C9.0°C | 9.0°C | 65 | 10.3 | 9.810 h |
| February | 14.1°C8.6°C | 8.6°C | 68 | 10.3 | 10.811 h |
| March | 16.4°C10.0°C | 10.0°C | 64 | 10.5 | 11.912 h |
| April | 18.9°C12.0°C | 12.0°C | 61 | 9.6 | 13.213 h |
| May | 22.8°C15.6°C | 15.6°C | 37 | 6.2 | 14.214 h |
| June | 27.2°C19.7°C | 19.7°C | 16 | 3.6 | 14.815 h |
| July | 30.1°C22.5°C | 22.5°C | 5.6 | 1.6 | 14.515 h |
| August | 30.6°C23.4°C | 23.4°C | 19 | 3.4 | 13.614 h |
| September, selected | 26.8°C20.6°C | 20.6°C | 61 | 8.8 | 12.512 h |
| October | 23.3°C17.5°C | 17.5°C | 81 | 9.8 | 11.211 h |
| November | 18.9°C13.8°C | 13.8°C | 64 | 10.3 | 10.210 h |
| December | 15.3°C10.6°C | 10.6°C | 67 | 11.3 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Marsala in SeptemberItaly · 89 kmHigh 26.4°C · Low 20.6°C · 42 mm rain
- Gela in SeptemberItaly · 139 kmHigh 27.0°C · Low 19.4°C · 29 mm rain
- Catania in SeptemberItaly · 165 kmHigh 27.5°C · Low 20.0°C · 54 mm rain
- Ragusa in SeptemberItaly · 179 kmHigh 24.3°C · Low 17.4°C · 45 mm rain
- Messina in SeptemberItaly · 192 kmHigh 26.1°C · Low 20.1°C · 65 mm rain
- Reggio Calabria in SeptemberItaly · 201 kmHigh 26.1°C · Low 18.8°C · 50 mm rain
- Siracusa in SeptemberItaly · 205 kmHigh 26.8°C · Low 21.1°C · 48 mm rain
- Valletta in SeptemberMalta · 267 kmHigh 25.8°C · Low 22.9°C · 33 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Palermo) is explained once on the Palermo year overview and on the Sources, method and limits page.