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Fall Weather in Ribeira Spain

Daily high temperatures decrease by 21°F, from 77°F to 56°F, rarely falling below 50°F or exceeding 87°F.

Daily low temperatures decrease by 14°F, from 58°F to 45°F, rarely falling below 37°F or exceeding 63°F.

For reference, on July 29, the hottest day of the year, temperatures in Ribeira typically range from 59°F to 79°F, while on February 7, the coldest day of the year, they range from 42°F to 55°F.

Average High and Low Temperature in the Fall in Ribeira

Average High and Low Temperature in the Fall in RibeiraSepOctNov30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°FSummerWinterSep 177°FSep 177°F58°F58°FNov 3056°FNov 3056°F45°F45°FOct 170°FOct 170°F54°F54°FNov 162°FNov 162°F50°F50°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 in Ribeira

Average Hourly Temperature in the Fall in RibeiraSepOctNov12 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 AMSummerWintercoldcoolcomfortablewarmcomfortable
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.

Mar del Plata, Argentina (6,380 miles away) and Melbourne, Australia (11,013 miles) are the far-away foreign places with temperatures most similar to Ribeira (view comparison).

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The fall in Ribeira experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 34% to 60%.

The clearest day of the fall is September 1, with clear, mostly clear, or partly cloudy conditions 66% of the time.

For reference, on December 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 64%, while on July 20, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.

Cloud Cover Categories in the Fall in Ribeira

Cloud Cover Categories in the Fall in RibeiraSepOctNov0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SummerWinterSep 166%Sep 166%Nov 3040%Nov 3040%Oct 153%Oct 153%Nov 141%Nov 141%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. In Ribeira, the chance of a wet day over the course of the fall is very rapidly increasing, starting the season at 16% and ending it at 39%.

For reference, the year's highest daily chance of a wet day is 43% on October 28, and its lowest chance is 9% on July 23.

Probability of Precipitation in the Fall in Ribeira

Probability of Precipitation in the Fall in RibeiraSepOctNov0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%SummerWinterOct 2843%Oct 2843%Sep 116%Sep 116%Nov 3039%Nov 3039%Oct 130%Oct 130%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 in Ribeira is very rapidly increasing, starting the season at 1.6 inches, when it rarely exceeds 3.7 inches or falls below 0.2 inches, and ending the season at 5.4 inches, when it rarely exceeds 10.1 inches or falls below 1.4 inches.

Average Monthly Rainfall in the Fall in Ribeira

Average Monthly Rainfall in the Fall in RibeiraSepOctNov0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inSummerWinterSep 11.6 inSep 11.6 inNov 305.4 inNov 305.4 inOct 14.2 inOct 14.2 inNov 15.6 inNov 15.6 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 in Ribeira, 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 3 hours, 51 minutes, implying an average daily decrease of 2 minutes, 34 seconds, and weekly decrease of 17 minutes, 59 seconds.

The shortest day of the fall is November 30, with 9 hours, 17 minutes of daylight and the longest day is September 1, with 13 hours, 9 minutes of daylight.

Hours of Daylight and Twilight in the Fall in Ribeira

Hours of Daylight and Twilight in the Fall in RibeiraSepOctNov0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSummerWinterSep 2212 hr, 9 minSep 2212 hr, 9 minnightnightdaydaySep 113 hr, 9 minSep 113 hr, 9 minNov 309 hr, 17 minNov 309 hr, 17 minNov 110 hr, 18 minNov 110 hr, 18 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 in Ribeira is 7:58 AM on September 1 and the latest sunrise is 1 hour, 2 minutes later at 9:00 AM on October 26.

The latest sunset is 9:07 PM on September 1 and the earliest sunset is 3 hours, 6 minutes earlier at 6:01 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 6:55 AM and sets 15 hours, 20 minutes later, at 10:15 PM, while on December 21, the shortest day of the year, it rises at 9:01 AM and sets 9 hours, 2 minutes later, at 6:03 PM.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall in Ribeira

Sunrise & Sunset with Twilight and Daylight Saving Time in the Fall in RibeiraSepOctNov2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM2 AMSummerWinter7:58 AM7:58 AMSep 19:07 PMSep 19:07 PM8:43 AM8:43 AMNov 306:01 PMNov 306:01 PM9:00 AM9:00 AMOct 267:34 PMOct 267:34 PM8:31 AM8:31 AMOct 18:14 PMOct 18:14 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 in Ribeira

Solar Elevation and Azimuth in the Fall in RibeiraSepOctNov12 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 AMSummerWinter00202030600010103040
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 in Ribeira

Moon Rise, Set & Phases in the Fall in RibeiraSepOctNov12 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 PM10:18 PM10:18 PM8:20 AM8:20 AM8:11 AM8:11 AM9:25 PM9:25 PM8:31 PM8:31 PM8:32 AM8:32 AM8:07 AM8:07 AM8:06 PM8:06 PM7:16 PM7:16 PM8:42 AM8:42 AM6:10 PM6:10 PM5:37 PM5:37 PM9:19 AM9:19 AM9:13 AM9:13 AM5:48 PM5:48 PM9:05 AM9:05 AM5:25 PM5:25 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 in Ribeira is gradually decreasing during the fall, falling from 2% to 0% over the course of the season.

For reference, on August 11, the muggiest day of the year, there are muggy conditions 4% of the time, while on November 16, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Fall in Ribeira

Humidity Comfort Levels in the Fall in RibeiraSepOctNov0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SummerWinterSep 12%Sep 12%Nov 300%Nov 300%Oct 11%Oct 11%Nov 10%Nov 10%humidhumidcomfortablecomfortabledrydrymuggymuggy
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 in Ribeira is gradually increasing during the fall, increasing from 4.9 miles per hour to 5.7 miles per hour over the course of the season.

For reference, on December 26, the windiest day of the year, the daily average wind speed is 6.0 miles per hour, while on September 12, the calmest day of the year, the daily average wind speed is 4.8 miles per hour.

The lowest daily average wind speed during the fall is 4.8 miles per hour on September 12.

Average Wind Speed in the Fall in Ribeira

Average Wind Speed in the Fall in RibeiraSepOctNov0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mphSummerWinterSep 124.8 mphSep 124.8 mphNov 305.7 mphNov 305.7 mphOct 15.1 mphOct 15.1 mphNov 15.5 mphNov 15.5 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Ribeira during the fall is predominantly out of the north from September 1 to October 1 and the south from October 1 to November 30.

Wind Direction in the Fall in Ribeira

Wind Direction in the Fall in RibeiraNSSepOctNov0%100%20%80%40%60%60%40%80%20%100%0%SummerWinterwestsoutheastnorth
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).

Ribeira 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 Ribeira is decreasing during the fall, falling by 5°F, from 63°F to 58°F, over the course of the season.

Average Water Temperature in the Fall in Ribeira

Average Water Temperature in the Fall in RibeiraSepOctNov54°F54°F56°F56°F58°F58°F60°F60°F62°F62°F64°F64°F66°F66°FSummerWinterSep 163°FSep 163°FNov 3058°FNov 3058°FOct 162°FOct 162°FNov 160°FNov 160°F
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Ribeira typically lasts for 11 months (331 days), from around January 27 to around December 23, rarely starting after March 13, or ending before November 19.

The fall in Ribeira is more likely than not fully within the growing season, with the chance that a given day is in the growing season decreasing from 100% to 80% over the course of the season.

Time Spent in Various Temperature Bands and the Growing Season in the Fall in Ribeira

Time Spent in Various Temperature Bands and the Growing Season in the Fall in Ribeiragrowing 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 180%Nov 3080%Nov 30100%Oct 1100%Oct 197%Nov 197%Nov 150%Dec 2350%Dec 23very coldcoldcoolcomfortablewarm
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 in Ribeira are rapidly increasing during the fall, increasing by 821°F, from 2,110°F to 2,930°F, over the course of the season.

Growing Degree Days in the Fall in Ribeira

Growing Degree Days in the Fall in RibeiraSepOctNov2,000°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 12,110°FSep 12,110°FNov 302,930°FNov 302,930°FOct 12,536°FOct 12,536°FNov 12,812°FNov 12,812°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 in Ribeira is very rapidly decreasing during the fall, falling by 4.1 kWh, from 5.7 kWh to 1.6 kWh, over the course of the season.

Average Daily Incident Shortwave Solar Energy in the Fall in Ribeira

Average Daily Incident Shortwave Solar Energy in the Fall in RibeiraSepOctNov0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhSummerWinterSep 15.7 kWhSep 15.7 kWhNov 301.6 kWhNov 301.6 kWhOct 13.9 kWhOct 13.9 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 Ribeira are 42.746 deg latitude, -8.444 deg longitude, and 210 ft elevation.

The topography within 2 miles of Ribeira contains very significant variations in elevation, with a maximum elevation change of 879 feet and an average elevation above sea level of 472 feet. Within 10 miles contains very significant variations in elevation (2,503 feet). Within 50 miles contains large variations in elevation (4,206 feet).

The area within 2 miles of Ribeira is covered by trees (51%) and cropland (49%), within 10 miles by trees (56%) and cropland (40%), and within 50 miles by trees (38%) and cropland (29%).

This report illustrates the typical weather in Ribeira, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Ribeira.

For each station, the records are corrected for the elevation difference between that station and Ribeira 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 Ribeira is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ribeira and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Ribeira and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

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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