This report describes the typical weather at the Auckland Airport (Auckland, New Zealand) weather station over the course of an average April. It is based on the historical records from 1990 to 2012. Earlier records are either unavailable or unreliable.
Auckland has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by grasslands (47%), oceans and seas (28%), built-up areas (10%), lakes and rivers (10%), and forests (5%).
The month of April is characterized by gradually falling daily high temperatures, with daily highs decreasing from 70°F to 65°F over the course of the month, exceeding 74°F or dropping below 61°F only one day in ten.
Over the course of April, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:04 hours, implying an average day-over-day decrease of 2.1 minutes.
The shortest day of the month is April 30 with 10:36 hours of daylight; the longest day is April 1 with 11:40 hours of daylight.
The earliest sunrise is at 6:35am on April 1; the latest sunset is at 6:15pm on April 1; the latest sunrise is at 6:59am on April 30; the earliest sunset is at 5:36pm on April 30.
Daylight savings time (DST) ends at 2:00am on April 1, 2012, shifting sunrise and sunset to an hour earlier.
The median cloud cover is 61% (partly cloudy) and does not vary substantially over the course of the month.
On April 15, a representative day, the sky is clear or mostly clear 25% of the time, partly cloudy 25% of the time, and mostly cloudy or overcast 35% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around April 30, occurring in 58% of days. Precipitation is least likely around April 8, occurring in 51% of days.
Throughout April, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 73% of those days with precipitation. It is most likely around April 30, when it is observed during 42% of all days.
Light rain is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around April 1, when it is observed during 9% of all days.
Either snow is exceptionally unlikely to fall at this location in April or this station does not reliably report precipitation types.
The relative humidity typically ranges from 61% (mildly humid) to 94% (very humid) over the course of a typical April, rarely dropping below 48% (comfortable) and reaching as high as 100% (very humid).
The air is driest around April 1, at which time the relative humidity drops below 66% (mildly humid) three days out of four; it is most humid around April 24, rising above 90% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical April, the dew point typically varies from 49°F (dry) to 60°F (comfortable) and is rarely below 43°F (dry) or above 65°F (mildy humid).
The time of the month between April 1 and April 30 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of April typical wind speeds vary from 2 mph to 16 mph (light air to moderate breeze), rarely exceeding 25 mph (strong breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around April 1, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around April 16, at which time the average daily maximum wind speed is 15 mph (moderate breeze).