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Weather Overview for Auckland

Auckland, on New Zealand’s North Island, has a warm temperate maritime climate which means it sees all four seasons and no extremes of temperature. It receives quite high levels of rain year round and is also quite humid. As it is in the southern hemisphere, the seasons are reversed to those experienced in the northern hemisphere, so Christmas falls in early summer while July sees people putting on their jackets. Auckland is the warmest and sunniest part of New Zealand.

Summer, from December till March, is very warm and sunny with comparatively low rainfall. The average high temperature reaches 22°C in December, climbs to 23°C in January and 24°C in February, then falls back to 22°C in March. It can get into the high 20s and the record high 32.4°C, but extreme heat is very rare. It can be a bit sticky, but it is rarely uncomfortable At night it cools off pleasantly to the mid teens – you might want to take an extra layer but you probably won’t need it outside. Rainfall levels increase slightly from autumn levels, but showers occur less frequently on around eleven days per month. Sunshine levels reach their annual best of an average of seven hours per day. The sea temperature increases, getting to 19°C in December and reaching 21°C for February and March.

Autumn, in April and May, is warm at first but soon becomes mild and sees quite a bit of wet, grey weather. The average high temperature drops to 20°C in April and 17°C in May, and the average low drops to 15°C and 12°C respectively. It is generally warm enough to be in a t-shirt in the day, but night times can be quite cool. Rainfall levels increase slightly and showers occur much more frequently, reaching an average of fourteen days with wet weather in May. Sunshine levels decrease but some clear, bright skies between showers are still to be had with an average of five or six hours of sunshine per day. The sea remains warm enough for swimming in the high teens.

Winter, from June till August, is very mild and sunny for the season, but also sees the majority of Auckland’s wet weather. The average high temperature gets down to 15°C in June and August and reaches its lowest of 14°C in July, which has an average low of 7°C. Frost does not develop and snow does not fall as it simply doesn’t get cold enough (which has seen the development New Zealand’s only indoor snow dome). You will probably want a light coat, but more to protect you from the rain than the cold. Rainfall increases quite dramatically in terms of frequency – it rains on around nineteen days per month. Light showers are more likely than severe storms. The sea is pretty nippy, but some might still consider taking a dip. Sunshine levels are at their lowest in June and July at an average of four hours per day.

Spring, in September and October, is warm but still quite wet. The average high gets up to 16°C in September and 18°C in October, while the average low slowly creeps into the low teens. Rainfall decreases but it still tends to rain on over half of the days in each month. The sea warms up but its still rather chilly in the mid teens. Sunshine levels increase to five or six hours per day. Foggy weather is most common in spring, though it can occur at any time of year.