Average Weather in Santiago de Compostela Spain
In Santiago de Compostela, the temperature typically varies from 41°F to 76°F over the course of the year, and is rarely below 32°F or above 87°F.
The warm season lasts for 3.0 months, from June 20 to September 21, with an average daily high temperature above 71°F. The hottest day of the year is July 30, with an average high of 76°F and low of 58°F.
The cool season lasts for 3.7 months, from November 16 to March 8, with an average daily high temperature below 58°F. The coldest day of the year is February 7, with an average low of 41°F and high of 54°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
The length of the day in Santiago de Compostela varies significantly over the course of the year. In 2017, the shortest day is December 21, with 9 hours, 1 minute of daylight; the longest day is June 21, with 15 hours, 21 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:54 AM on June 14, and the latest sunrise is 2 hours, 10 minutes later at 9:05 AM on January 4. The earliest sunset is at 5:59 PM on December 9, and the latest sunset is 4 hours, 17 minutes later at 10:17 PM on June 26.
Daylight saving time (DST) is observed in Santiago de Compostela during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
In Santiago de Compostela, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Santiago de Compostela begins around June 6 and lasts for 3.4 months, ending around September 18. On July 21, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time.
The cloudier part of the year begins around September 18 and lasts for 8.6 months, ending around June 6. On January 1, the cloudiest day of the year, the sky is overcast or mostly cloudy 63% of the time, and clear, mostly clear, or partly cloudy 37% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Santiago de Compostela varies significantly throughout the year.
The wetter season lasts 7.9 months, from September 29 to May 26, with a greater than 27% chance of a given day being a wet day. The chance of a wet day peaks at 44% on January 8.
The drier season lasts 4.1 months, from May 26 to September 29. The smallest chance of a wet day is 10% on July 24.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 44% on January 8.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day in the year. Santiago de Compostela experiences very significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Santiago de Compostela. The most rain falls during the 31 days centered around December 30, with an average total accumulation of 5.6 inches.
The least rain falls around July 23, with and average total accumulation of 0.9 inches.
Average Monthly Rainfall
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 perceived humidity level in Santiago de Compostela, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 3% of 3% throughout.
Humidity Comfort Levels
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 Santiago de Compostela does not vary significantly over the course of the year, remaining within 0.3 miles per hour of 3.1 miles per hour throughout.
Average Wind Speed
The predominant average hourly wind direction in Santiago de Compostela varies throughout the year.
The wind is most often from the north for 6.3 months, from March 24 to October 2, with a peak percentage of 55% on July 24. The wind is most often from the south for 5.7 months, from October 2 to March 24, with a peak percentage of 43% on January 3.
Santiago de Compostela 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 water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 2.7 months, from July 8 to September 29, with an average temperature above 62°F. The day of the year with the warmest water is August 15, with an average temperature of 64°F.
The time of year with cooler water lasts for 4.1 months, from December 29 to May 1, with an average temperature below 57°F. The day of the year with the coolest water is February 26, with an average temperature of 55°F.
Average Water Temperature
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 experiences very significant seasonal variation over the course of the year.
The brighter period of the year lasts for 3.2 months, from May 16 to August 22, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest day of the year is July 7, with an average of 7.5 kWh.
The darker period of the year lasts for 3.8 months, from October 25 to February 18, with an average daily incident shortwave energy per square meter below 2.6 kWh. The darkest day of the year is December 27, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Santiago de Compostela are 42.881 deg latitude, -8.546 deg longitude, and 889 ft elevation (map ).
The topography within 2 miles of Santiago de Compostela contains very significant variations in elevation, with a maximum elevation change of 1,027 feet, and an average elevation above sea level of 860 feet. Within 10 miles also contains very significant variations in elevation (1,713 feet). Within 50 miles contains extreme variations in elevation (3,894 feet).
The area within 2 miles of Santiago de Compostela is covered by trees (39%), artificial surfaces (30%), and cropland (25%), within 10 miles by trees (57%) and cropland (39%), and within 50 miles by trees (33%) and water (30%).
This report illustrates the typical weather in Santiago de Compostela, 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 Santiago de Compostela.
For each station, the records are corrected for the elevation difference between that station and Santiago de Compostela 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 Santiago de Compostela is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Santiago de Compostela 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 .