SeasonMapCatania (Etna) weather in September
Italy
September in Catania: hot, a little rain, with clean air — an excellent time to visit.
#9 of 12 months in Catania · #662 of 1383 destinations to visit in September · comfort 80/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Catania in September
Other months in Catania
Catania's forum rates May as warm but not hot, with flowers in bloom and the tourist season not yet at its peak — daytime temperatures in the low-to-mid 70s°F with cooler nights that call for a light jacket. Regulars are honest that May weather can still be genuinely unsettled some years, with one visitor reporting an overcast, rainy stretch through most of the month, so layers and a rain option are worth packing alongside summer clothes.
Add your own note from Catania's card on the map.
Catania climate normals — September
| Daytime high | 30°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 21°C / 70°F | |
| Feels like (high) | 33°C / 91°F | |
| Sea temperature | 26°C / 79°F | 😎 warm sea |
| Rainfall | 47 mm / 1.9 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 17°C / 62°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 12.4 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Catania in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer holidays in Italy, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Catania's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherCatania's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Catania in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Etna ash and airport closures
1 Jan – 31 DecVolcanic activityClosuresEtna produces paroxysms several times a year with no season to them, and when the ash blows south the airport shuts for hours and the cars turn grey. Check INGV before assuming a flight will go. Source ↗
- Season
Sea warm enough to swim
10 Jun – 25 Oct · usuallyOne of the longest swimming windows in Europe. The lava coast at Aci Trezza is the better water; the sand at Playa is where the city goes.
Nearby, and something's on
Within 300 km of Catania — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Catania?
Catania in September — FAQ
- Is September a good time to visit Catania?
- September in Catania: hot, a little rain, with clean air — an excellent time to visit. It ranks #9 of 12 months for Catania on SeasonMap's comfort score (80/100).
- What is the weather like in Catania in September?
- In September, Catania averages a daily high of 30.3°C and a low of 21.2°C, with about 47.1 mm of rain over roughly 7.9 rainy days.
- What is the air quality in Catania in September?
- Catania has a mean US Air Quality Index of about 48 in September.
Other months in Catania
Warmer or cooler than Catania in September
Similar destinations in Southern Europe — September
Within 300 km: Taormina's Concerts in the ancient theatre around 1 Jun – 30 Sep, and Syracuse's Ortigia Film Festival around 20–26 Sep.