September Weather in Shiraz, Iran

Last updated: August 21, 2025

In September, Shiraz, Iran experiences a warm and arid climate, with maximum temperatures soaring to a sweltering 36°C (96°F). The average temperature hovers around a comfortable 25°C (77°F), while the minimum dips to a refreshing 14°C (58°F) at night. Residents and visitors alike enjoy splendid sunny days, as evidenced by the 0 mm of precipitation recorded throughout the month, marking it as a dry period with 0 rainy days. With a low humidity level of just 16%, September in Shiraz offers an ideal climate for outdoor exploration and cultural activities.

September Temperature in Shiraz

In September, Shiraz experiences a delightful transition into autumn, characterized by pleasantly warm temperatures. The average temperature hovers around 25°C (77°F), providing a comfortable backdrop for exploring the city's rich culture and stunning architecture. As the days grow shorter, nighttime temperatures dip to a mild 14°C (58°F), ideal for evening strolls under the stars. With maximums reaching up to 36°C (96°F), the warmth still lingers from the summer months, but it starts to ease as October approaches. This month marks a gradual cooling trend, making September an inviting time to visit Shiraz, where the climate complements the beauty of its historic sites beautifully.

September Weather in Shiraz: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Shiraz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiraz, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec414552617082848377665245
Data source: Temperature data for Shiraz generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Shiraz

In Shiraz, Iran, September marks the continuation of a dry spell, with the month recording no precipitation and zero rainy days. This trend follows a consistently arid summer, where July and August also saw negligible rainfall. As the city transitions into the fall, the lack of moisture in September starkly contrasts with the wetter months earlier in the year, particularly March, which boasts the highest rainfall at 91 mm (3.6 in) over 7 days. With autumn just around the corner, residents can expect slight increases in precipitation, yet September remains firmly entrenched in the dry season, reflecting the overall climatic pattern that shapes this historic region.

September Precipitation Trends in Shiraz

The chart displays monthly precipitation patterns in Shiraz, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Shiraz, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3980914216030075142
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shiraz

In Shiraz, Iran, September marks a slight uptick in humidity levels, reaching 16%, a modest increase from the summer's dry spells of 10% in July and 12% in August. This transition reflects the region's seasonal shift as it moves from the arid heat of summer toward the more temperate conditions of autumn. Interestingly, September's humidity is still significantly lower than the year's early months, particularly from January to April, when levels hover between 34% and 46%. As the city approaches the cooler months, humidity is poised to rise again, with October anticipated to see a notable increase to 33%. This trend illustrates Shiraz's characteristic drying pattern in summer, followed by a gradual reintroduction of moisture as the seasons change.

September Average Humidity in Shiraz

This chart illustrates the average monthly humidity levels in Shiraz, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Shiraz is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec46%35%36%34%30%14%10%12%16%33%51%49%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shiraz

In September, Shiraz experiences a notably high UV Index of 11, categorized as extreme. This means that sun exposure can lead to skin burns in just 10 minutes, underscoring the importance of sun protection. As the summer months transition into fall, the UV levels remain consistently elevated, with May peaking at 14 and June and July close behind at 13. While September shows a slight decline from the summer's peak, it still demands vigilance when outdoors. As the temperatures begin to cool in October, the UV Index drops to 10, but caution is still necessary. For detailed sun safety tips and UV forecasts, visit Shiraz UV Index.

Maximum UV Index Levels in Shiraz for September

The chart shows the monthly maximum UV Index (UVI) for Shiraz in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Shiraz typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec68121214131312111075
Data source: Shiraz September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Shiraz

September in Shiraz showcases a beautiful transition as summer starts to wane, offering 346 hours of sunshine—a delightful blend of warmth and mildness. This month falls right after the peak solar months of June and July, which boast the same 388 hours of bright days. As the heart of the year, Shiraz basks in the tail end of a sun-drenched summer, with sunlight gradually tapering off, resulting in 33 hours less than the summer peak. The overall trend reveals that while September radiates warmth, it does so with a hint of crispness, paving the way for the cooler months ahead. This balance makes it an ideal time for exploration, where the sun-kissed streets of Shiraz pulse with life, inviting visitors to savor its rich culture against a stunning backdrop.

Monthly Sunshine Duration in Shiraz: September Highlighted

The September sunshine duration represents the total number of hours Shiraz experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec243h289h337h345h379h388h388h376h346h332h290h298h
Data source: Shiraz September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Shiraz During September

In Shiraz, Iran, September boasts an impressive 99% chance of sunny weather, making it one of the brightest months of the year. This trend is part of a pattern that sees a steady increase in sunshine from spring through summer, peaking in the warm months of June and July with 95% and 86% respectively. As summer transitions to fall, sunny days continue to dominate, creating a delightful climate that invites both exploration and relaxation. With such a high likelihood of clear skies, September in Shiraz is undeniably a perfect time to enjoy the rich history and vibrant culture this beautiful city has to offer.

Percentage of Sunny Days in September in Shiraz

The chart illustrates the percentage of sunny days in Shiraz throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Shiraz experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec80%77%77%61%82%95%86%84%99%95%77%52%
Data source: Shiraz September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Shiraz in September

As September unfolds in Shiraz, Iran, the sun graces the city with around 12 hours of daylight, signaling a gentle transition toward shorter days. This month marks a subtle decline from the peak of 14 hours in June, reflecting the natural ebb and flow of daylight throughout the year. Following a summer of plentiful sunshine, September retains a warm glow, making it an ideal time for outdoor activities and exploration. As the days gradually shorten towards October's 11 hours, residents and visitors alike can savor the beautiful interplay of light and shadow that characterizes this enchanting season in Shiraz.

Average Daylight Hours in Shiraz for September

The chart illustrates the variation in daylight duration in Shiraz throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 28m11h 8m11h 59m12h 53m13h 37m14h13h 48m13h 9m12h 18m11h 25m10h 39m10h 16m
Data source: Shiraz daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Shiraz

As September arrives in Shiraz, the wind begins to mirror the transitional spirit of the season. With an average speed of 1.7 m/s (4 mph), this month's gentle breezes are reminiscent of January's calm, suggesting a return to more tranquil conditions after a summer of slightly more consistent winds. From March's peak of 2.6 m/s (6 mph), where the winds picked up, a noticeable decline sets in as the year progresses, settling back to the lows of early winter. September, therefore, feels like a nostalgic breath, preparing the city for the cooler embrace of autumn while maintaining a soft, soothing ambiance that invites wandering through its historic streets.

Average September Wind Speed in Shiraz

The chart displays monthly wind speed patterns in Shiraz, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.71.82.61.81.92.02.02.01.7 m/s1.71.61.7
Data source: Shiraz September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Shiraz Compares to Other Months

Weather in Shiraz varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shiraz, focusing on differences in temperature, rainfall, humidity, and UV levels.

September and January present a stark contrast in weather conditions. September experiences warm temperatures, with a minimum of 14°C (58°F) and an average of 25°C (77°F), peaking at a scorching 36°C (96°F). This month is characterized by dry conditions, featuring no recorded precipitation and a low humidity level of 16%. In contrast, January is considerably colder, with temperatures ranging from a minimum of -15°C (5°F) to a maximum of 21°C (70°F), averaging just 5°C (41°F). Additionally, January sees more moisture, with 39 mm (1.5 in) of precipitation spread over four days and a higher humidity at 46%. For a closer look at the specifics, you can check Shiraz weather in January.

September and February exhibit stark contrasts in weather conditions. In September, temperatures hover between a minimum of 14°C (58°F) and a maximum of 36°C (96°F), with an average of 25°C (77°F), and the month is characterized by dry conditions, showcasing no precipitation and a low humidity level of 16%. In sharp contrast, February experiences much colder temperatures, ranging from a minimum of -7°C (19°F) to a maximum of 21°C (71°F), with an average of 7°C (45°F). This winter month also brings significant precipitation, totaling 80 mm (3.1 in) over six days, with humidity higher at 35%. For more detailed information on February's climate, visit Shiraz weather in February.

September and March exhibit strikingly different weather patterns. In September, temperatures soar, with a minimum of 14°C (58°F) and an average high of 36°C (96°F), accompanied by an impressively dry climate and zero precipitation. In contrast, March experiences much cooler temperatures, with a minimum of -4°C (24°F) and an average high of 28°C (83°F). Additionally, March is significantly wetter, receiving 91 mm (3.6 in) of precipitation over about seven days, resulting in higher humidity levels at 36%. For further details, check Shiraz weather in March.

In September, the weather is characterized by warm temperatures, ranging from a minimum of 14°C (58°F) to a maximum of 36°C (96°F), with an average of 25°C (77°F). This month experiences virtually no precipitation, resulting in dry conditions and a low humidity level of just 16%. In contrast, April presents a cooler climate, with temperatures that fluctuate between a minimum of 3°C (38°F) and a maximum of 29°C (84°F), averaging at 16°C (61°F). Unlike September, April sees a fair amount of rainfall, totaling 42 mm (1.7 in) over about 8 days, accompanied by higher humidity at 34%. For more detailed information, you can visit Shiraz weather in April.

In September, the weather offers a warm and dry climate, with average temperatures around 25°C (77°F) and maximums reaching up to 36°C (96°F), while maintaining a notably low humidity level of 16%. In contrast, May presents a cooler and slightly more humid atmosphere, with minimum temperatures of 7°C (45°F) and average highs of 21°C (71°F). Additionally, May experiences some rainfall, with an average precipitation of 16 mm (0.6 in) over three days. For a closer look at May weather specifically in Shiraz, you can refer to Shiraz weather in May.

In comparing the weather of September and June, both months exhibit warm climates with striking similarities in temperature ranges. September features minimum temperatures around 14°C (58°F), an average of 25°C (77°F), and maximums reaching up to 36°C (96°F). In contrast, June is slightly warmer, with minimums also starting at 14°C (57°F), an average temperature of 28°C (82°F), and highs soaring up to 39°C (102°F). Both months experience clear skies, with no recorded precipitation, resulting in comfortable humidity levels of 16% in September and 14% in June. For more details, you can check Shiraz weather in June.

September generally offers more moderate temperatures compared to the sweltering heat of July. While July can reach a maximum of 39°C (103°F) with an average temperature of 29°C (84°F), September’s temperatures peak at a maximum of 36°C (96°F) and average around 25°C (77°F). Notably, September experiences no precipitation and slightly higher humidity at 16%, compared to July's minimal 3 mm (0.1 in) of rain and lower humidity of 10%. For more information, you can check out Shiraz weather in July.

In September, the weather shows a slight decrease in average temperatures compared to August, with minimums around 14°C (58°F) and maximums reaching 36°C (96°F) compared to August's minimum of 17°C (62°F) and maximum of 39°C (103°F). Overall, September offers slightly cooler average temperatures at 25°C (77°F) versus August's 28°C (83°F). Both months experience no rainfall and a low number of precipitation days, but September has a higher humidity level at 16%, compared to August's 12%. For more details on August weather, visit Shiraz weather in August.

September typically showcases warmer and drier conditions than October, with temperatures ranging from a minimum of 14°C (58°F) to a scorching maximum of 36°C (96°F). The month boasted zero precipitation and very low humidity at 16%, making it feel quite arid. In contrast, October brings cooler temperatures, with a minimum of 5°C (42°F) and an average of 19°C (66°F), peaking at 32°C (89°F). This month also sees a slight increase in humidity, rising to 33%, along with some rainfall, totaling 7 mm over one day. For more details, you can visit Shiraz weather in October.

September and November present strikingly different weather conditions. In September, temperatures soar with a minimum of 14°C (58°F) and an average of 25°C (77°F), reaching highs of up to 36°C (96°F). The month is exceptionally dry, recording no precipitation and a low humidity level of just 16%. In contrast, November sees a significant drop in temperatures, with a minimum of -1°C (30°F) and an average of 11°C (52°F), peaking at 25°C (78°F). This month experiences an average precipitation of 51 mm (2.0 in) over five rainy days, along with a noticeable increase in humidity, rising to 51%. For a detailed look at weather patterns, check Shiraz weather in November.

September and December present starkly different weather experiences. In September, temperatures can soar as high as 36°C (96°F), with an average of 25°C (77°F) and minimal humidity at just 16%. This month is characterized by dry conditions, with no recorded precipitation. In contrast, December brings a chill, with temperatures ranging from a minimum of -3°C (28°F) to a maximum of 21°C (69°F) and an average of 7°C (45°F). Humidity rises to 49%, accompanied by around 42 mm (1.6 in) of precipitation over 4 days. For more detailed insights, check out Shiraz weather in December.

Compare Shiraz's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Shiraz

As summer wanes, September in Shiraz brings a delightful transition with warm temperatures and dry conditions, setting it apart from the hotter summer months. With maximum highs reaching 36°C complemented by milder averages around 25°C, outdoor activities can be enjoyed in comfort. The stark absence of precipitation ensures that the days remain sun-drenched, while the low humidity adds to the pleasant experience. For those looking to explore Shiraz, this month offers an ideal climate, making it a standout time of year. To learn more about what to expect throughout the year, check out the detailed information on Shiraz Climate.