Auckland enjoys a temperate oceanic climate with mild, damp winters and warm, humid summers, making it one of New Zealand's most agreeable cities year-round.
Rain falls fairly evenly throughout the year, though winter tends to be wetter, which means a waterproof layer is never a bad idea no matter the season.
Temperatures range from around 8°C on winter mornings to 24°C on summer afternoons, with extremes rare enough that locals treat a 28°C day as cause for public hysteria.
The humidity can be surprisingly sticky in summer, and the prevailing westerlies bring frequent breezy conditions that make layering more strategic than you'd expect for such moderate temperatures.
Auckland's microclimates and rapid weather shifts mean looking foolish carrying a jacket in sunshine is vastly preferable to shivering in a T-shirt an hour later.