Average Weather in September in Illas Spain
Daily high temperatures decrease by 4°F, from 70°F to 67°F, rarely falling below 60°F or exceeding 76°F.
Daily low temperatures decrease by 4°F, from 57°F to 54°F, rarely falling below 49°F or exceeding 62°F.
For reference, on August 7, the hottest day of the year, temperatures in Illas typically range from 59°F to 71°F, while on February 7, the coldest day of the year, they range from 41°F to 53°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
Myrtle Point, Oregon, United States (5,347 miles away); Beaconsfield, Australia (11,057 miles); and Masterton, New Zealand (12,256 miles) are the far-away foreign places with temperatures most similar to Illas (view comparison).
The month of September in Illas experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 36% to 46%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 64% of the time.
For reference, on November 24, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 76%.
Cloud Cover Categories in September
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 Illas, the chance of a wet day over the course of September is very rapidly increasing, starting the month at 17% and ending it at 27%.
For reference, the year's highest daily chance of a wet day is 39% on November 23, and its lowest chance is 11% on July 20.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Illas is rapidly increasing, starting the month at 1.3 inches, when it rarely exceeds 3.2 inches or falls below 0.3 inches, and ending the month at 2.3 inches, when it rarely exceeds 4.3 inches or falls below 0.5 inches.
Average Monthly Rainfall in September
Over the course of September in Illas, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 25 minutes, implying an average daily decrease of 2 minutes, 56 seconds, and weekly decrease of 20 minutes, 30 seconds.
The shortest day of the month is September 30, with 11 hours, 46 minutes of daylight and the longest day is September 1, with 13 hours, 11 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Illas is 7:47 AM on September 1 and the latest sunrise is 32 minutes later at 8:20 AM on September 30.
The latest sunset is 8:59 PM on September 1 and the earliest sunset is 52 minutes earlier at 8:06 PM on September 30.
Daylight saving time is observed in Illas during 2021, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 6:43 AM and sets 15 hours, 25 minutes later, at 10:08 PM, while on December 21, the shortest day of the year, it rises at 8:53 AM and sets 8 hours, 57 minutes later, at 5:50 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The figure below presents a compact representation of key lunar data for September 2021. 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 September
The chance that a given day will be muggy in Illas is gradually decreasing during September, falling from 3% to 0% over the course of the month.
For reference, on August 13, the muggiest day of the year, there are muggy conditions 4% 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 September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Illas is gradually increasing during September, increasing from 7.3 miles per hour to 8.0 miles per hour over the course of the month.
For reference, on December 29, the windiest day of the year, the daily average wind speed is 10.4 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.
Average Wind Speed in September
The wind direction in Illas during September is predominantly out of the east from September 1 to September 29 and the west from September 29 to September 30.
Wind Direction in September
Illas 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 Illas is gradually decreasing during September, falling by 3°F, from 68°F to 65°F, over the course of the month.
Average Water Temperature in September
The growing season in Illas typically lasts for 11 months (328 days), from around February 7 to around January 2, rarely starting after March 11, or ending before December 4.
The month of September in Illas is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Illas are increasing during September, increasing by 342°F, from 1,562°F to 1,904°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Illas is rapidly decreasing during September, falling by 1.6 kWh, from 5.6 kWh to 4.0 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Illas are 43.497 deg latitude, -5.975 deg longitude, and 676 ft elevation.
The topography within 2 miles of Illas contains very significant variations in elevation, with a maximum elevation change of 1,736 feet and an average elevation above sea level of 967 feet. Within 10 miles contains very significant variations in elevation (2,067 feet). Within 50 miles contains large variations in elevation (7,841 feet).
The area within 2 miles of Illas is covered by trees (45%), grassland (42%), and shrubs (13%), within 10 miles by grassland (38%) and trees (33%), and within 50 miles by water (45%) and trees (22%).
This report illustrates the typical weather in Illas, 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 Illas.
For each station, the records are corrected for the elevation difference between that station and Illas 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 Illas is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Illas and a given station.
Time zones for airports and weather stations are provided by AskGeo.com .