Auckland's maritime climate ensures that temperatures never go to the extremes they would if the city were landlocked. Temperatures usually stay in the mid 20°s (high 70°Fs) in summer, and rarely fall near freezing in winter (June-August) - although the ground in some sheltered low-lying areas may at times receive a coating of frost. In summer the weather can become quite humid.
| Month | Temp (°C) | Rainfall (mm) | Humidity (%) | Sunshine (hours) |
| Jan | 16 - 23 | 79 | 7 | |
| Feb | 16 - 23 | 94 | 7 | |
| Mar | 15 - 22 | 81 | 6 | |
| Apr | 13 - 19 | 97 | 5 | |
| May | 11 - 17 | 127 | 4 | |
| Jun | 9 - 14 | 137 | 4 | |
| Jul | 8 - 13 | 145 | 4 | |
| Aug | 8 - 14 | 117 | 5 | |
| Sep | 9 - 16 | 102 | 5 | |
| Oct | 11 - 17 | 102 | 6 | |
| Nov | 12 - 19 | 89 | 7 | |
| Dec | 14 - 21 | 79 | 7 |