Weather in Palermo in August
Italy · 20-year averages, August
A good month. August works. It is not the peak, but nothing about it fights you. Highs average 32.6 °C, lows 23.7 °C, and rain falls on 3 days — nothing in the month is working against you.
August ranks 9 of 12 in Palermo: past the worst of the year but short of May, which is the month to book if the dates are open.
Rain falls on only 3 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 32.6 °C days and 23.7 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 5 days clear 35 °C, so a serious heatwave is normal rather than notable. Across the twenty years measured, the hottest August day reached 39.4 °C and the coldest night fell to 19.6 °C.
This is the volatile part. August rainfall has ranged from 0 mm to 65 mm across the twenty years measured — a 65 mm spread around an average of 13 mm. The average is real but almost no individual August looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 9.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 60%.
How August sits in the year
Temperatures hold steady either side: 32.2 °C in July, 32.6 here, 28.4 in September. Nothing about the timing within the month matters much. Rain is the thing that moves: September brings 6 days more of it, so the earlier half of a flexible trip is the safer half.
Daylight in August
13.7 hours of daylight, losing 1.1 hours across the month. That is between Palermo's extremes of 14.8 and 9.5 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 27.2 °C in August — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.
How busy it gets
Shoulder. The value months — prices ease off and you get the place closer to itself.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
August in Palermo versus nearby
If Palermo is one option among several, the nearby comparison is worth making. Catania is the weaker option in August — 3.9 °C warmer, the same number of rain days. Taormina is close enough to be a coin toss — within a degree on temperature, 1 day more rain.
So: August is a compromise. May is 22 points better and is what Palermo is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Palermo
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 14.5 | 9.5 | 13 | 97 | 82 | 9.8 | 14.9 | 57 |
| February | 14.6 | 9 | 11 | 86 | 80 | 10.8 | 14.2 | 62 |
| March | 17 | 10.3 | 10 | 74 | 79 | 11.9 | 14.5 | 70 |
| April | 20.1 | 12.4 | 9 | 56 | 76 | 13.1 | 15.9 | 83 |
| May | 24 | 15.6 | 5 | 27 | 71 | 14.2 | 19 | 92 |
| June | 28.9 | 19.8 | 3 | 18 | 65 | 14.8 | 23.1 | 87 |
| July | 32.2 | 22.9 | 2 | 7 | 60 | 14.6 | 26.5 | 73 |
| August | 32.6 | 23.7 | 3 | 13 | 60 | 13.7 | 27.2 | 70 |
| September | 28.4 | 21.2 | 9 | 61 | 69 | 12.5 | 25.6 | 78 |
| October | 24.8 | 18.1 | 11 | 91 | 75 | 11.3 | 22.7 | 78 |
| November | 19.9 | 14.5 | 12 | 87 | 79 | 10.1 | 19.7 | 76 |
| December | 15.9 | 11.1 | 13 | 95 | 81 | 9.5 | 16.8 | 62 |
See all twelve months in Palermo, or where else to go in August.
Planning the rest of the trip
- Flight time to Palermo how long you are actually in the air
- Palermo time zone and the difference from home
- Days until your trip count down to the departure date