Climate averages 1991–2020
Naples weather
in December.
A cool, wet month: the 10th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cool month in Naples: daytime highs average 13.0°C and nights cool to about 7.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 154 mm of rain on roughly 13 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 9 h 18 min on an average December day.
The nearest other city in this atlas is Giugliano in Campania (10 km away). In December its highs average 12.5°C, about as warm as Naples, with 141 mm of rain.
Among the 79 cities listed in Italy, Naples ranks joint 17th of 79 for the warmest December highs and joint 77th of 79 for the driest December (rainfall, lowest first). The mean December high of those 79 cities is 10.5°C; Naples is 2.5°C warmer than that mean.
From December to January, average highs fall by 1.0°C to 11.9°C, and monthly rainfall falls from 154 mm to 122 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
Naples climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.9°C6.0°C | 6.0°C | 122 | 11.5 | 9.610 h |
| February | 12.4°C5.8°C | 5.8°C | 102 | 10.7 | 10.611 h |
| March | 14.8°C7.5°C | 7.5°C | 95 | 9.8 | 11.912 h |
| April | 17.7°C9.9°C | 9.9°C | 74 | 9.3 | 13.313 h |
| May | 21.7°C13.7°C | 13.7°C | 44 | 6.0 | 14.414 h |
| June | 25.9°C17.9°C | 17.9°C | 22 | 3.4 | 15.115 h |
| July | 28.9°C20.8°C | 20.8°C | 11 | 2.0 | 14.815 h |
| August | 29.6°C21.5°C | 21.5°C | 17 | 2.6 | 13.814 h |
| September | 25.3°C18.1°C | 18.1°C | 86 | 8.0 | 12.513 h |
| October | 21.2°C14.6°C | 14.6°C | 124 | 10.1 | 11.211 h |
| November | 16.7°C10.9°C | 10.9°C | 187 | 13.5 | 9.910 h |
| December, selected | 13.0°C7.3°C | 7.3°C | 154 | 13.4 | 9.39 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
- Giugliano in Campania in DecemberItaly · 10 kmHigh 12.5°C · Low 7.6°C · 141 mm rain
- Torre del Greco in DecemberItaly · 11 kmHigh 12.9°C · Low 7.8°C · 154 mm rain
- Pozzuoli in DecemberItaly · 15 kmHigh 13.2°C · Low 9.0°C · 133 mm rain
- Caserta in DecemberItaly · 25 kmHigh 12.0°C · Low 4.3°C · 141 mm rain
- Salerno in DecemberItaly · 48 kmHigh 13.1°C · Low 8.6°C · 180 mm rain
- Foggia in DecemberItaly · 127 kmHigh 12.5°C · Low 4.6°C · 55 mm rain
- Latina in DecemberItaly · 133 kmHigh 12.7°C · Low 5.9°C · 115 mm rain
- Aprilia in DecemberItaly · 158 kmHigh 12.5°C · Low 6.4°C · 121 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 Naples) is explained once on the Naples year overview and on the Sources, method and limits page.
Torre del Greco lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.