Average Weather in March in Buncrana Ireland
Daily high temperatures increase by 3°F, from 46°F to 49°F, rarely falling below 41°F or exceeding 55°F.
Daily low temperatures are around 38°F, rarely falling below 30°F or exceeding 46°F.
For reference, on July 26, the hottest day of the year, temperatures in Buncrana typically range from 53°F to 63°F, while on February 17, the coldest day of the year, they range from 36°F to 45°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 Buncrana experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 67% throughout the month.
The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 35% of the time.
For reference, on January 27, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 73%, while on May 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 45%.
Cloud Cover Categories in March
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Buncrana, the chance of a wet day over the course of March is gradually decreasing, starting the month at 42% and ending it at 38%.
For reference, the year's highest daily chance of a wet day is 55% on January 3, and its lowest chance is 31% on May 16.
Over the course of March in Buncrana, the chance of a day with only rain decreases from 41% to 38%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.
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 Buncrana is gradually decreasing, starting the month at 2.8 inches, when it rarely exceeds 4.6 inches or falls below 1.3 inches, and ending the month at 2.4 inches, when it rarely exceeds 3.8 inches or falls below 1.1 inches.
Average Monthly Rainfall in March
Over the course of March in Buncrana, the length of the day is very rapidly increasing. From the start to the end of the month, the length of the day increases by 2 hours, 16 minutes, implying an average daily increase of 4 minutes, 32 seconds, and weekly increase of 31 minutes, 42 seconds.
The shortest day of the month is March 1, with 10 hours, 45 minutes of daylight and the longest day is March 31, with 13 hours, 1 minute of daylight.
Hours of Daylight and Twilight in March
The latest sunrise of the month in Buncrana is 7:20 AM on March 1 and the earliest sunrise is 58 minutes earlier at 6:22 AM on March 24.
The earliest sunset is 6:05 PM on March 1 and the latest sunset is 2 hours, 0 minutes later at 8:04 PM on March 31.
Daylight saving time (DST) starts at 2:00 AM on March 25, 2018, shifting sunrise and sunset to be an hour later.
For reference, on June 21, the longest day of the year, the Sun rises at 4:49 AM and sets 17 hours, 24 minutes later, at 10:13 PM, while on December 21, the shortest day of the year, it rises at 8:53 AM and sets 7 hours, 8 minutes later, at 4:02 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 Buncrana is essentially constant during March, remaining around 0% throughout.
For reference, on July 25, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, 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 Buncrana is decreasing during March, decreasing from 17.2 miles per hour to 15.3 miles per hour over the course of the month.
For reference, on January 7, the windiest day of the year, the daily average wind speed is 18.9 miles per hour, while on July 24, the calmest day of the year, the daily average wind speed is 11.8 miles per hour.
Average Wind Speed in March
Wind Direction in March
Buncrana 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 Buncrana is essentially constant during March, remaining around 47°F throughout.
The lowest average surface water temperature during March is 46°F on March 7.
Average Water Temperature in March
Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).
The growing season in Buncrana typically lasts for 7.1 months (219 days), from around April 12 to around November 17, rarely starting before February 28 or after May 7, and rarely ending before October 19 or after December 20.
The month of March in Buncrana is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly increasing from 11% to 31% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in March
Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.
The average accumulated growing degree days in Buncrana are essentially constant during March, remaining within 3°F of 8°F throughout.
Growing Degree Days 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 Buncrana is increasing during March, rising by 1.4 kWh, from 1.6 kWh to 3.0 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 Buncrana are 55.133 deg latitude, -7.450 deg longitude, and 220 ft elevation.
The topography within 2 miles of Buncrana contains very significant variations in elevation, with a maximum elevation change of 955 feet and an average elevation above sea level of 167 feet. Within 10 miles contains very significant variations in elevation (2,021 feet). Within 50 miles also contains large variations in elevation (2,418 feet).
The area within 2 miles of Buncrana is covered by water (25%), artificial surfaces (18%), herbaceous vegetation (17%), and grassland (17%), within 10 miles by herbaceous vegetation (21%) and grassland (18%), and within 50 miles by water (48%) and grassland (28%).
This report illustrates the typical weather in Buncrana 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Buncrana.
For each station, the records are corrected for the elevation difference between that station and Buncrana according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Buncrana is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Buncrana and a given station.
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.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.