Palermo weather in May
May in Palermo: warm, a little rain, with very humid — one of the best months to visit.
#2 of 12 months in Palermo · #109 of 604 destinations to visit in May · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Palermo climate normals — May
| Daytime high | 23°C / 73°F | 🌤 warm |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Feels like (high) | 24°C / 75°F | |
| Rainfall | 74 mm / 2.9 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 11.9 h/day | |
| Daylight | 14.2 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Palermo?
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Palermo in May — FAQ
- Is May a good time to visit Palermo?
- May in Palermo: warm, a little rain, with very humid — one of the best months to visit. It ranks #2 of 12 months for Palermo on SeasonMap's comfort score (89/100).
- What is the weather like in Palermo in May?
- In May, Palermo averages a daily high of 22.7°C and a low of 15.8°C, with about 74.2 mm of rain over roughly 9.6 rainy days.
- What is the air quality in Palermo in May?
- Palermo has a mean US Air Quality Index of about 53 in May.