The best time to go to Mount Eden is during the shoulder seasons of spring (September to November) and autumn (March to May) for pleasant weather and fewer crowds.
During these months, the weather is generally mild and comfortable, superb for exploring the volcanic cone and its surrounding park. You'll find the walking tracks are less busy than in the peak summer period, allowing for a more relaxed ascent to the summit for panoramic views of Auckland. Spring brings blooming flora, adding a touch of colour to the landscape, while autumn offers crisp air and often clear skies.
For those prioritising warm weather and long daylight hours, particularly families looking to explore the outdoor attractions, the summer months (December to February) are ideal. While it's the busiest time, the sunshine and warmer temperatures make it excellent for picnics in the park or extended walks. Just be prepared for more visitors, especially at the summit.
Conversely, winter (June to August) can be cooler and wetter, which might affect outdoor activities. However, if you don't mind a bit of rain and enjoy a quieter experience, you can still visit Mount Eden.