Average Weather in March in Christchurch New Zealand
In Christchurch, the month of March is characterized by gradually falling daily high temperatures, with daily highs decreasing by 4°F, from 69°F to 65°F over the course of the month, and rarely exceeding 79°F or dropping below 57°F.
Daily low temperatures decrease by 4°F, from 53°F to 49°F, rarely falling below 41°F or exceeding 60°F.
For reference, on January 17, the hottest day of the year, temperatures in Christchurch typically range from 55°F to 71°F, while on July 1, the coldest day of the year, they range from 37°F to 51°F.
Average High and Low Temperature in March
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on March. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in March
The month of March in Christchurch experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 40% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 39% on March 5.
The clearest day of the month is March 5, with clear, mostly clear, or partly cloudy conditions 61% of the time.
For reference, on July 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on March 5, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 61%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Christchurch, the chance of a wet day over the course of March is essentially constant, remaining around 24% throughout.
For reference, the year's highest daily chance of a wet day is 32% on December 20, and its lowest chance is 22% on February 11.
Probability of Precipitation in March
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during March in Christchurch is gradually decreasing, starting the month at 2.0 inches, when it rarely exceeds 3.9 inches or falls below 0.6 inches, and ending the month at 1.8 inches, when it rarely exceeds 3.2 inches or falls below 0.7 inches.
The highest average 31-day accumulation is 2.1 inches on March 3.
Average Monthly Rainfall in March
Over the course of March in Christchurch, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 30 minutes, implying an average daily decrease of 2 minutes, 60 seconds, and weekly decrease of 20 minutes, 60 seconds.
The shortest day of the month is March 31, with 11 hours, 37 minutes of daylight and the longest day is March 1, with 13 hours, 7 minutes of daylight.
Hours of Daylight and Twilight in March
The earliest sunrise of the month in Christchurch is 7:07 AM on March 1 and the latest sunrise is 37 minutes later at 7:44 AM on March 31.
The latest sunset is 8:15 PM on March 1 and the earliest sunset is 53 minutes earlier at 7:22 PM on March 31.
Daylight saving time is observed in Christchurch during 2017, but it neither starts nor ends during March, so the entire month is in daylight saving time.
For reference, on December 21, the longest day of the year, the Sun rises at 5:44 AM and sets 15 hours, 26 minutes later, at 9:10 PM, while on June 21, the shortest day of the year, it rises at 8:03 AM and sets 8 hours, 56 minutes later, at 4:59 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in March
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The chance that a given day will be muggy in Christchurch is essentially constant during March, remaining around 0% throughout.
For reference, on January 27, the muggiest day of the year, there are muggy conditions 0% of the time, while on March 29, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in March
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Christchurch is essentially constant during March, remaining within 0.1 miles per hour of 5.5 miles per hour throughout.
For reference, on December 26, the windiest day of the year, the daily average wind speed is 6.0 miles per hour, while on April 25, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.
Average Wind Speed in March
Wind Direction in March
Christchurch is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Christchurch is gradually decreasing during March, falling by 2°F, from 62°F to 59°F, over the course of the month.
Average Water Temperature in March
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy in Christchurch is rapidly decreasing during March, falling by 1.5 kWh, from 5.5 kWh to 4.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in March
For the purposes of this report, the geographical coordinates of Christchurch are -43.533 deg latitude, 172.633 deg longitude, and 36 ft elevation.
The topography within 2 miles of Christchurch contains only modest variations in elevation, with a maximum elevation change of 121 feet and an average elevation above sea level of 36 feet. Within 10 miles contains only modest variations in elevation (1,798 feet). Within 50 miles contains very significant variations in elevation (6,529 feet).
The area within 2 miles of Christchurch is covered by artificial surfaces (86%) and grassland (10%), within 10 miles by grassland (30%) and water (28%), and within 50 miles by water (61%) and grassland (16%).
This report illustrates the typical weather in Christchurch year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There is only a single weather station, Christchurch International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Christchurch.
At a distance of 10 kilometers from Christchurch, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Christchurch according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.