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Fall Weather at Bergerac-Roumanière France

Daily high temperatures decrease by 27°F, from 78°F to 52°F, rarely falling below 42°F or exceeding 88°F.

Daily low temperatures decrease by 17°F, from 54°F to 37°F, rarely falling below 26°F or exceeding 62°F.

For reference, on August 3, the hottest day of the year, temperatures at Bergerac-Roumanière typically range from 58°F to 82°F, while on February 7, the coldest day of the year, they range from 34°F to 51°F.

Average High and Low Temperature in the Fall at Bergerac-Roumanière

Average High and Low Temperature in the Fall at Bergerac-RoumanièreSepOctNov20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FSummerWinterSep 178°FSep 178°F54°F54°FNov 3052°FNov 3052°F37°F37°FOct 171°FOct 171°F49°F49°FNov 161°FNov 161°F43°F43°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average fall temperatures. 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 the Fall at Bergerac-Roumanière

Average Hourly Temperature in the Fall at Bergerac-RoumanièreSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWintervery coldvery coldcoldcoolcomfortablewarmcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Vancouver, United States (5,295 miles away) and Mount Beauty, Australia (10,631 miles) are the far-away foreign places with temperatures most similar to Bergerac-Roumanière (view comparison).

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The fall at Bergerac-Roumanière experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 36% to 60%.

The clearest day of the fall is September 1, with clear, mostly clear, or partly cloudy conditions 64% of the time.

For reference, on January 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 66%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 74%.

Cloud Cover Categories in the Fall at Bergerac-Roumanière

Cloud Cover Categories in the Fall at Bergerac-RoumanièreSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterSep 164%Sep 164%Nov 3040%Nov 3040%Oct 154%Oct 154%Nov 145%Nov 145%clearmostly clearpartly cloudyovercastmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Bergerac-Roumanière, the chance of a wet day over the course of the fall is rapidly increasing, starting the season at 21% and ending it at 28%.

For reference, the year's highest daily chance of a wet day is 33% on May 8, and its lowest chance is 18% on August 24.

Probability of Precipitation in the Fall at Bergerac-Roumanière

Probability of Precipitation in the Fall at Bergerac-RoumanièreSepOctNov0%0%5%5%10%10%15%15%20%20%25%25%30%30%SummerWinterSep 121%Sep 121%Nov 3028%Nov 3028%Oct 127%Oct 127%Nov 127%Nov 127%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the fall at Bergerac-Roumanière is gradually increasing, starting the season at 1.7 inches, when it rarely exceeds 3.3 inches or falls below 0.6 inches, and ending the season at 2.1 inches, when it rarely exceeds 4.1 inches or falls below 0.6 inches.

The highest average 31-day accumulation is 2.3 inches on November 8.

Average Monthly Rainfall in the Fall at Bergerac-Roumanière

Average Monthly Rainfall in the Fall at Bergerac-RoumanièreSepOctNov0 in0 in1 in1 in2 in2 in3 in3 in4 in4 inSummerWinterNov 82.3 inNov 82.3 inSep 11.7 inSep 11.7 inNov 302.1 inNov 302.1 inOct 12.2 inOct 12.2 in
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of the fall at Bergerac-Roumanière, the length of the day is very rapidly decreasing. From the start to the end of the season, the length of the day decreases by 4 hours, 10 minutes, implying an average daily decrease of 2 minutes, 46 seconds, and weekly decrease of 19 minutes, 24 seconds.

The shortest day of the fall is November 30, with 9 hours, 4 minutes of daylight and the longest day is September 1, with 13 hours, 14 minutes of daylight.

Hours of Daylight and Twilight in the Fall at Bergerac-Roumanière

Hours of Daylight and Twilight in the Fall at Bergerac-RoumanièreSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 9 minSep 2212 hr, 9 minnightnightdaydayNov 309 hr, 4 minNov 309 hr, 4 minNov 110 hr, 9 minNov 110 hr, 9 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the fall at Bergerac-Roumanière is 7:20 AM on September 1 and the latest sunrise is 1 hour, 8 minutes later at 8:28 AM on October 26.

The latest sunset is 8:34 PM on September 1 and the earliest sunset is 3 hours, 16 minutes earlier at 5:18 PM on November 30.

Daylight saving time (DST) starts at 2:00 AM on October 27, 2024, shifting sunrise and sunset to be an hour later.

For reference, on June 20, the longest day of the year, the Sun rises at 6:11 AM and sets 15 hours, 36 minutes later, at 9:47 PM, while on December 21, the shortest day of the year, it rises at 8:32 AM and sets 8 hours, 47 minutes later, at 5:19 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall at Bergerac-Roumanière

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall at Bergerac-RoumanièreSepOctNov2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM2 AMSummerWinter7:20 AM7:20 AMSep 18:34 PMSep 18:34 PM8:14 AM8:14 AMNov 305:18 PMNov 305:18 PM8:28 AM8:28 AMOct 266:54 PMOct 266:54 PM7:56 AM7:56 AMOct 17:37 PMOct 17:37 PMDSTOct 27DSTOct 27SolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the fall. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

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. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in the Fall at Bergerac-Roumanière

Solar Elevation and Azimuth in the Fall at Bergerac-RoumanièreSepOctNov12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSummerWinter002020300010103040
northeastsouthwest
Solar elevation and azimuth in the the fall of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the fall of 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in the Fall at Bergerac-Roumanière

Moon Rise, Set & Phases in the Fall at Bergerac-RoumanièreSepOctNov12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSummerWinterAug 41:14 PMAug 41:14 PMAug 198:26 PMAug 198:26 PMSep 33:56 AMSep 33:56 AMSep 184:35 AMSep 184:35 AMOct 28:50 PMOct 28:50 PMOct 171:27 PMOct 171:27 PMNov 11:48 PMNov 11:48 PMNov 1510:29 PMNov 1510:29 PMDec 17:22 AMDec 17:22 AMDec 1510:02 AMDec 1510:02 AMDec 3011:28 PMDec 3011:28 PM9:47 PM9:47 PM9:11 PM9:11 PM7:38 AM7:38 AM7:31 AM7:31 AM8:50 PM8:50 PM7:56 PM7:56 PM7:53 AM7:53 AM7:30 AM7:30 AM7:28 PM7:28 PM6:38 PM6:38 PM8:07 AM8:07 AM5:28 PM5:28 PM4:53 PM4:53 PM8:50 AM8:50 AM8:45 AM8:45 AM5:01 PM5:01 PM8:38 AM8:38 AM4:37 PM4:37 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 at Bergerac-Roumanière is decreasing during the fall, falling from 9% to 0% over the course of the season.

For reference, on August 4, the muggiest day of the year, there are muggy conditions 16% of the time, while on November 12, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Fall at Bergerac-Roumanière

Humidity Comfort Levels in the Fall at Bergerac-RoumanièreSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterSep 19%Sep 19%Nov 300%Nov 300%Oct 11%Oct 11%Nov 10%Nov 10%muggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 at Bergerac-Roumanière is increasing during the fall, increasing from 7.2 miles per hour to 8.6 miles per hour over the course of the season.

For reference, on April 2, the windiest day of the year, the daily average wind speed is 9.3 miles per hour, while on August 7, the calmest day of the year, the daily average wind speed is 6.9 miles per hour.

Average Wind Speed in the Fall at Bergerac-Roumanière

Average Wind Speed in the Fall at Bergerac-RoumanièreSepOctNov0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphSummerWinterSep 17.2 mphSep 17.2 mphNov 308.6 mphNov 308.6 mphOct 17.9 mphOct 17.9 mphNov 18.5 mphNov 18.5 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction at Bergerac-Roumanière during the fall is predominantly out of the west from September 1 to September 6, the north from September 6 to October 3, and the south from October 3 to November 30.

Wind Direction in the Fall at Bergerac-Roumanière

Wind Direction in the Fall at Bergerac-RoumanièreWNSSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 at Bergerac-Roumanière typically lasts for 7.0 months (213 days), from around April 6 to around November 4, rarely starting before March 16 or after April 28, and rarely ending before October 13 or after December 13.

During the fall at Bergerac-Roumanière, the chance that a given day is within the growing season is very rapidly decreasing falling from 100% to 15% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Bergerac-Roumanière

Time Spent in Various Temperature Bands and the Growing Season in the Fall at Bergerac-Roumanièregrowing seasonSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinter100%Sep 1100%Sep 1Nov 3015%Nov 3015%99%Oct 199%Oct 158%Nov 158%Nov 1Sep 10100%Sep 10100%freezingvery coldcoldcoolcomfortablewarmhot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 at Bergerac-Roumanière are rapidly increasing during the fall, increasing by 695°F, from 2,273°F to 2,968°F, over the course of the season.

Growing Degree Days in the Fall at Bergerac-Roumanière

Growing Degree Days in the Fall at Bergerac-RoumanièreSepOctNov2,000°F2,000°F2,200°F2,200°F2,400°F2,400°F2,600°F2,600°F2,800°F2,800°F3,000°F3,000°F3,200°F3,200°FSummerWinterSep 12,273°FSep 12,273°FNov 302,968°FNov 302,968°FOct 12,668°FOct 12,668°FNov 12,896°FNov 12,896°F
The average growing degree days accumulated over the course of the fall, with 25th to 75th and 10th to 90th percentile bands.

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 at Bergerac-Roumanière is very rapidly decreasing during the fall, falling by 4.0 kWh, from 5.4 kWh to 1.5 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Fall at Bergerac-Roumanière

Average Daily Incident Shortwave Solar Energy in the Fall at Bergerac-RoumanièreSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSummerWinterSep 15.4 kWhSep 15.4 kWhNov 301.5 kWhNov 301.5 kWhOct 13.8 kWhOct 13.8 kWhNov 12.3 kWhNov 12.3 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Bergerac-Roumanière are 44.825 deg latitude, 0.519 deg longitude, and 164 ft elevation.

The topography within 2 miles of Bergerac-Roumanière contains only modest variations in elevation, with a maximum elevation change of 318 feet and an average elevation above sea level of 159 feet. Within 10 miles contains only modest variations in elevation (627 feet). Within 50 miles contains significant variations in elevation (1,450 feet).

The area within 2 miles of Bergerac-Roumanière is covered by cropland (80%) and artificial surfaces (13%), within 10 miles by cropland (60%) and trees (28%), and within 50 miles by cropland (52%) and trees (36%).

This report illustrates the typical weather at Bergerac-Roumanière, 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

Bergerac-Roumanière has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Agen-la-Garenne, Angoulême – Cognac International Airport, Brive-La Roche Airport (historical), Auch-Lamothe, Montauban Airport, Cognac-Châteaubernard Air Base, Limoges-Bellegarde, and Bordeaux–Mérignac Airport.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

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.

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