Climate averages 1991–2020
Catania weather
in December.
A mild, moderately wet month: the 10th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Catania: daytime highs average 15.3°C and nights cool to about 9.1°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 64 mm of rain on roughly 8 days, which makes December a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 38 min on an average December day.
The nearest other city in this atlas is Siracusa (50 km away). In December its highs average 15.7°C, about as warm as Catania, with 80 mm of rain.
Among the 79 cities listed in Italy, Catania ranks joint 3rd of 79 for the warmest December highs and 13th of 79 for the driest December (rainfall, lowest first). The mean December high of those 79 cities is 10.5°C; Catania is 4.8°C warmer than that mean.
From December to January, average highs fall by 1.1°C to 14.1°C, and monthly rainfall rises from 64 mm to 76 mm.
The annual picture
December 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
Catania climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.1°C7.4°C | 7.4°C | 76 | 7.8 | 9.910 h |
| February | 14.6°C7.3°C | 7.3°C | 60 | 7.2 | 10.811 h |
| March | 16.7°C8.8°C | 8.8°C | 57 | 7.7 | 11.912 h |
| April | 19.3°C11.3°C | 11.3°C | 47 | 7.6 | 13.113 h |
| May | 23.8°C15.2°C | 15.2°C | 29 | 4.5 | 14.214 h |
| June | 28.6°C19.5°C | 19.5°C | 20 | 3.0 | 14.715 h |
| July | 31.7°C22.4°C | 22.4°C | 9.5 | 1.9 | 14.514 h |
| August | 32.0°C23.1°C | 23.1°C | 15 | 2.9 | 13.614 h |
| September | 27.5°C20.0°C | 20.0°C | 54 | 6.9 | 12.512 h |
| October | 23.3°C16.6°C | 16.6°C | 64 | 8.4 | 11.311 h |
| November | 18.9°C12.5°C | 12.5°C | 66 | 7.9 | 10.210 h |
| December, selected | 15.3°C9.1°C | 9.1°C | 64 | 7.6 | 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
December in nearby cities
- Siracusa in DecemberItaly · 50 kmHigh 15.7°C · Low 11.0°C · 80 mm rain
- Ragusa in DecemberItaly · 70 kmHigh 12.4°C · Low 7.3°C · 60 mm rain
- Reggio Calabria in DecemberItaly · 86 kmHigh 13.5°C · Low 8.6°C · 74 mm rain
- Gela in DecemberItaly · 87 kmHigh 15.4°C · Low 9.6°C · 65 mm rain
- Messina in DecemberItaly · 89 kmHigh 14.8°C · Low 10.6°C · 109 mm rain
- Palermo in DecemberItaly · 165 kmHigh 15.3°C · Low 10.6°C · 67 mm rain
- Valletta in DecemberMalta · 184 kmHigh 16.2°C · Low 13.7°C · 72 mm rain
- Lamezia Terme in DecemberItaly · 196 kmHigh 13.6°C · Low 9.3°C · 139 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 Catania) is explained once on the Catania year overview and on the Sources, method and limits page.