Situated on the shin of Italy, Naples has a fair expanse of Mediterranean in front of it, bringing those hot dry summers and cool sea breezes straight to Naples' door. It's much wetter than Italy's east coast; most rain occurs around autumn and winter months. Unlike Mediterranean islands where the sea keeps winter temperatures warm, Naples has inland winds that make for quite chilly winters.
| Month | Temp (°C) | Rainfall (mm) | Humidity (%) | Sunshine (hours) |
| Jan | 4 - 12 | 116 | 4 | |
| Feb | 5 - 13 | 85 | 4 | |
| Mar | 6 - 15 | 73 | 5 | |
| Apr | 9 - 18 | 62 | 7 | |
| May | 12 - 22 | 44 | 8 | |
| Jun | 16 - 26 | 31 | 9 | |
| Jul | 18 - 29 | 19 | 10 | |
| Aug | 18 - 29 | 32 | 10 | |
| Sep | 16 - 26 | 64 | 8 | |
| Oct | 12 - 22 | 107 | 6 | |
| Nov | 9 - 17 | 147 | 4 | |
| Dec | 6 - 14 | 135 | 3 |