September Weather in Pāsārgād Iran

Daily high temperatures decrease by 8°F, from 90°F to 81°F, rarely falling below 77°F or exceeding 94°F.

Daily low temperatures decrease by 9°F, from 61°F to 52°F, rarely falling below 47°F or exceeding 65°F.

For reference, on July 10, the hottest day of the year, temperatures in Pāsārgād typically range from 67°F to 94°F, while on January 12, the coldest day of the year, they range from 29°F to 50°F.

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.

Toquerville, United States (7,703 miles away); Belen, United States (7,777 miles); and Clarendon, United States (7,638 miles) are the far-away foreign places with temperatures most similar to Pāsārgād (view comparison).

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The month of September in Pāsārgād experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 4% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 2% on September 14.

The clearest day of the month is September 14, with clear, mostly clear, or partly cloudy conditions 98% of the time.

For reference, on April 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 35%, while on September 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 98%.

Over the course of September in Pāsārgād, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 52 minutes, implying an average daily decrease of 1 minute, 48 seconds, and weekly decrease of 12 minutes, 34 seconds.

The shortest day of the month is September 30, with 11 hours, 53 minutes of daylight and the longest day is September 1, with 12 hours, 45 minutes of daylight.

The earliest sunrise of the month in Pāsārgād is 5:34 AM on September 1 and the latest sunrise is 16 minutes later at 5:50 AM on September 30.

The latest sunset is 6:19 PM on September 1 and the earliest sunset is 36 minutes earlier at 5:43 PM on September 30.

Daylight saving time is not observed in Pāsārgād during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:56 AM and sets 14 hours, 6 minutes later, at 7:01 PM, while on December 21, the shortest day of the year, it rises at 6:49 AM and sets 10 hours, 12 minutes later, at 5:01 PM.

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.

The figure below presents a compact representation of key lunar data for September 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.

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 Pāsārgād is essentially constant during September, remaining around 0% throughout.

For reference, on June 12, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.

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 Pāsārgād is gradually decreasing during September, decreasing from 6.8 miles per hour to 6.0 miles per hour over the course of the month.

For reference, on March 4, the windiest day of the year, the daily average wind speed is 8.8 miles per hour, while on October 18, the calmest day of the year, the daily average wind speed is 5.7 miles per hour.

The hourly average wind direction in Pāsārgād throughout September is predominantly from the north, with a peak proportion of 40% on September 1.

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 Pāsārgād typically lasts for 8.1 months (249 days), from around March 16 to around November 20, rarely starting before February 25 or after April 4, and rarely ending before November 2 or after December 8.

The month of September in Pāsārgād is reliably fully 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 Pāsārgād are rapidly increasing during September, increasing by 648°F, from 3,798°F to 4,446°F, over the course of the month.

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 Pāsārgād is decreasing during September, falling by 1.1 kWh, from 7.7 kWh to 6.6 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Pāsārgād are 30.202 deg latitude, 53.180 deg longitude, and 6,073 ft elevation.

The topography within 2 miles of Pāsārgād contains only modest variations in elevation, with a maximum elevation change of 387 feet and an average elevation above sea level of 6,082 feet. Within 10 miles contains only modest variations in elevation (2,477 feet). Within 50 miles contains large variations in elevation (8,071 feet).

The area within 2 miles of Pāsārgād is covered by shrubs (41%) and cropland (39%), within 10 miles by shrubs (50%) and sparse vegetation (32%), and within 50 miles by shrubs (52%) and sparse vegetation (21%).