This report describes the typical weather at the Auckland Airport (Auckland, New Zealand) weather station over the course of an average March. 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 March is characterized by gradually falling daily high temperatures, with daily highs around 71°F throughout the month, exceeding 77°F or dropping below 66°F only one day in ten.
Over the course of March, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 1:11 hours, implying an average day-over-day decrease of 2.3 minutes.
The shortest day of the month is March 31 with 11:43 hours of daylight; the longest day is March 1 with 12:54 hours of daylight.
The earliest sunrise is at 7:06am on March 1; the latest sunset is at 8:00pm on March 1; the latest sunrise is at 7:34am on March 31; the earliest sunset is at 7:16pm on March 31.
Daylight savings time is observed in 2012 but it neither starts nor ends in March, so the entire month is in daylight time.
The median cloud cover is 60% (partly cloudy) and does not vary substantially over the course of the month.
On March 16, a representative day, the sky is clear or mostly clear 24% 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 March 31, occurring in 50% of days. Precipitation is least likely around March 1, occurring in 46% of days.
Throughout March, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 68% of those days with precipitation. It is most likely around March 31, when it is observed during 36% of all days.
Light rain is the most severe precipitation observed during 20% of those days with precipitation. It is most likely around March 7, when it is observed during 10% of all days.
Either snow is exceptionally unlikely to fall at this location in March or this station does not reliably report precipitation types.
The relative humidity typically ranges from 58% (mildly humid) to 92% (very humid) over the course of a typical March, rarely dropping below 47% (comfortable) and reaching as high as 99% (very humid).
The air is driest around March 2, at which time the relative humidity drops below 63% (mildly humid) three days out of four; it is most humid around March 31, rising above 89% (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 March, the dew point typically varies from 52°F (very comfortable) to 62°F (mildy humid) and is rarely below 45°F (dry) or above 67°F (muggy).
The time of the month between March 1 and March 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of March typical wind speeds vary from 2 mph to 17 mph (light air to moderate breeze), rarely exceeding 25 mph (strong breeze).
The highest average wind speed of 11 mph (gentle breeze) occurs around March 5, at which time the average daily maximum wind speed is 17 mph (moderate breeze).
The lowest average wind speed of 10 mph (gentle breeze) occurs around March 31, at which time the average daily maximum wind speed is 16 mph (moderate breeze).