Average Weather in May in Riez France
Daily high temperatures increase by 8°F, from 64°F to 72°F, rarely falling below 55°F or exceeding 81°F.
Daily low temperatures increase by 7°F, from 44°F to 51°F, rarely falling below 38°F or exceeding 56°F.
For reference, on August 4, the hottest day of the year, temperatures in Riez typically range from 60°F to 84°F, while on January 12, the coldest day of the year, they range from 30°F to 45°F.
Average High and Low Temperature in May
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.
Average Hourly Temperature in May
The month of May in Riez experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 47% to 43%. The highest chance of overcast or mostly cloudy conditions is 48% on May 8.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 57% of the time.
For reference, on October 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 49%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 81%.
Cloud Cover Categories in May
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Riez, the chance of a wet day over the course of May is gradually decreasing, starting the month at 22% and ending it at 19%.
For reference, the year's highest daily chance of a wet day is 25% on October 25, and its lowest chance is 9% on July 12.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Riez is gradually decreasing, starting the month at 1.9 inches, when it rarely exceeds 3.6 inches or falls below 0.5 inches, and ending the month at 1.4 inches, when it rarely exceeds 3.0 inches or falls below 0.3 inches.
Average Monthly Rainfall in May
Over the course of May in Riez, 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, 3 minutes, implying an average daily increase of 2 minutes, 6 seconds, and weekly increase of 14 minutes, 40 seconds.
The shortest day of the month is May 1, with 14 hours, 10 minutes of daylight and the longest day is May 31, with 15 hours, 12 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Riez is 6:28 AM on May 1 and the earliest sunrise is 31 minutes earlier at 5:57 AM on May 31.
The earliest sunset is 8:37 PM on May 1 and the latest sunset is 32 minutes later at 9:09 PM on May 31.
Daylight saving time is observed in Riez during 2019, 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 5:53 AM and sets 15 hours, 28 minutes later, at 9:21 PM, while on December 22, the shortest day of the year, it rises at 8:06 AM and sets 8 hours, 54 minutes later, at 5:01 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Riez is essentially constant during May, remaining around 0% throughout.
For reference, on July 24, the muggiest day of the year, there are muggy conditions 1% 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 May
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Riez is essentially constant during May, remaining within 0.2 miles per hour of 7.9 miles per hour throughout.
For reference, on April 6, the windiest day of the year, the daily average wind speed is 8.6 miles per hour, while on September 17, the calmest day of the year, the daily average wind speed is 7.3 miles per hour.
Average Wind Speed in May
Wind Direction in May
Riez 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 Riez is increasing during May, rising by 5°F, from 60°F to 65°F, over the course of the month.
Average Water Temperature in May
The growing season in Riez typically lasts for 7.0 months (212 days), from around April 8 to around November 6, rarely starting before March 22 or after April 25, and rarely ending before October 17 or after November 29.
The month of May in Riez is very likely fully within the growing season, with the chance that a given day is in the growing season gradually increasing from 96% to 100% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in May
The average accumulated growing degree days in Riez are increasing during May, increasing by 257°F, from 185°F to 442°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Riez is gradually increasing during May, rising by 0.9 kWh, from 6.0 kWh to 7.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in May
For the purposes of this report, the geographical coordinates of Riez are 43.818 deg latitude, 6.093 deg longitude, and 2,031 ft elevation.
The topography within 2 miles of Riez contains significant variations in elevation, with a maximum elevation change of 610 feet and an average elevation above sea level of 1,966 feet. Within 10 miles contains significant variations in elevation (4,669 feet). Within 50 miles also contains extreme variations in elevation (9,964 feet).
The area within 2 miles of Riez is covered by cropland (51%), trees (35%), and shrubs (12%), within 10 miles by trees (46%) and cropland (37%), and within 50 miles by trees (49%) and cropland (20%).
This report illustrates the typical weather in Riez 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Riez.
For each station, the records are corrected for the elevation difference between that station and Riez 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 Riez is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Riez and a given station.
The stations contributing to this reconstruction are: Château-Arnoux-Saint-Auban Airport (60%, 29 kilometers, north); Le Luc-Le Cannet (17%, 54 kilometers, southeast); Marseille Provence Airport (11%, 83 kilometers, southwest); and Salon (11%, 83 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .