Lima is warm and sticky across the seasons, with very little rainfall. January through March brings warm, humid days with temperatures of about 26°C (79°F), and nightly lows which hover around a pleasant 20°C (68°F). The afternoon humidity relaxes a little during March and April, and the sun washes over the countryside. Between April and December, however, garúa (coastal fog) shrouds the sun.
| Month | Temp (°C) | Rainfall (mm) | Humidity (%) | Sunshine (hours) |
| Jan | 20 - 26 | 30 | 6 | |
| Feb | 20 - 26 | 0 | 7 | |
| Mar | 20 - 26 | 0 | 7 | |
| Apr | 18 - 24 | 0 | 7 | |
| May | 17 - 22 | 50 | 4 | |
| Jun | 16 - 20 | 50 | 1 | |
| Jul | 15 - 19 | 80 | 1 | |
| Aug | 15 - 18 | 80 | 1 | |
| Sep | 15 - 19 | 80 | 1 | |
| Oct | 16 - 20 | 30 | 3 | |
| Nov | 17 - 22 | 30 | 4 | |
| Dec | 18 - 24 | 0 | 5 |