The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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.
A wet day is one with at least 0. To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding day period centered around each day. The average sliding day rainfall during May in Saint-Malo is essentially constant , remaining about 1.
Over the course of May in Saint-Malo, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 16 minutes , implying an average daily increase of 2 minutes, 31 seconds , and weekly increase of 17 minutes, 40 seconds.
The shortest day of the month is May 1 , with 14 hours, 35 minutes of daylight and the longest day is May 31 , with 15 hours, 51 minutes of daylight. Daylight saving time is observed in Saint-Malo during , but it neither starts nor ends during May, so the entire month is in daylight saving time. For reference, on June 21 , the longest day of the year, the Sun rises at AM and sets 16 hours, 9 minutes later, at PM , while on December 21 , the shortest day of the year, it rises at AM and sets 8 hours, 17 minutes later, at PM.
The figure below presents a compact representation of the sun's elevation the angle of the sun above the horizon and azimuth its compass bearing for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment.
