September Weather in Qom, Iran

Last updated: August 21, 2025

September in Qom, Iran showcases a remarkable blend of warmth and arid conditions. With maximum temperatures soaring to 43°C (109°F) and an average of 29°C (84°F), the skies remain predominantly clear, contributing to zero precipitation throughout the month. Even at night, temperatures stay comfortably mild, dipping to a minimum of 15°C (59°F). The humidity level hovers around 45%, providing a dry but bearable atmosphere. This month unveils Qom's classic desert climate, making it a unique destination for those seeking the sun-drenched essence of Iran.

September Temperature in Qom

In September, Qom experiences a transition towards milder temperatures, setting the stage for the cooler autumn months. With minimums around 15°C (59°F) and averages peaking at 29°C (84°F), the city balances warm days with pleasantly cool nights. The maximum temperature can reach up to 43°C (109°F), but this intensity begins to drop as the month progresses. This shift from the scorching highs of summer is indicative of the changing seasons, inviting visitors to enjoy a more tolerable climate while exploring the rich cultural tapestry of this historic city. As the days become shorter, September’s comfortable warmth makes it an ideal time for outdoor activities before the winter chill sets in.

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

The chart illustrates September temperature patterns in Qom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Qom, 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).
JanFebMarAprMayJunJulAugSepOctNovDec455061708090959183705547
Data source: Temperature data for Qom 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 Qom

In September, Qom, Iran, experiences a continuation of its dry spell, recording 0 mm of precipitation and not a single rainy day. This starkly contrasts with the earlier months of the year, where rainfall peaked in March at 36 mm over five days, showcasing a distinct seasonal pattern. As summer fades into autumn, the region transitions from a brief wet period to an aridity that persists, exemplified by August and now September, both devoid of any rain. This trend highlights Qom's semi-arid climate, where the majority of rainfall is concentrated in the first half of the year, leaving the latter months relatively parched.

September Precipitation Trends in Qom

The chart displays monthly precipitation patterns in Qom, 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 Qom, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1525362219210082820
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Qom

In September, Qom, Iran, experiences a noticeable shift in humidity levels, dipping to 45% after the sweltering summer months. This slight increase in dryness follows a steady decline from a humid 70% in January to just 40% in August. As the seasons transition, September's humidity marks a pivotal point, suggesting an easing of summer’s heat and a gradual move towards the cooler months ahead. The rise in humidity during fall, expected to reach 61% in October, hints at changing atmospheric conditions, emphasizing the region's fluctuating climate as it prepares for winter.

September Average Humidity in Qom

This chart illustrates the average monthly humidity levels in Qom, 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 Qom is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec70%66%68%62%64%62%52%40%45%61%72%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Qom

As September rolls into Qom, Iran, the UV Index remains at a significant 9, categorizing it as very high and marking a slight decline from the peak levels of summer. This indicates a burn time of just 15 minutes, emphasizing the need for appropriate sun protection as day-to-day activities are carried out under the bright sun. Throughout the year, Qom experiences a clear escalatory trend in UV exposure, peaking in May and June with an alarming 12, before tapering down in the latter months. The gradual drop in UV levels leading into autumn presents a welcome change for those looking to enjoy the outdoors with a reduced risk of sunburn. For more detailed insights and tips on embracing the sun safely during this time, visit Qom UV Index.

Maximum UV Index Levels in Qom for September

The chart shows the monthly maximum UV Index (UVI) for Qom 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 Qom typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4689121211109753
Data source: Qom 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 Qom

As September arrives in Qom, Iran, the city basks in 346 hours of sunshine, a continuation of the radiant summer months that saw July peak with 399 hours. The sunlight begins to taper slightly after the summer's zenith, yet September still enjoys ample daylight, significantly more than the cooler months ahead. This month bridges the gap between the sweltering heat of summer and the milder days of autumn, showcasing a gradual decline in sunshine that started in August with 380 hours. Looking ahead, the months of October and November will see a further reduction, hinting at the seasonal transition that is characteristic of this picturesque region.

Monthly Sunshine Duration in Qom: September Highlighted

The September sunshine duration represents the total number of hours Qom 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.
JanFebMarAprMayJunJulAugSepOctNovDec230h273h323h337h381h397h399h380h346h317h264h275h
Data source: Qom September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Qom During September

In Qom, Iran, September boasts an impressive 99% chance of sunny weather, making it one of the sunniest months of the year. As summer transitions to autumn, the likelihood of clear skies remains remarkably high, reflecting a consistent trend of sunny days that begins in late spring. Following the peak sunshine of June and July, September continues to uphold this brightness, surpassing even the summer months with its exceptional sunlit days. This predisposition for sunny weather in September makes it an ideal time for outdoor activities and exploration in Qom, as the pleasant warmth lingers before the cooler months set in.

Percentage of Sunny Days in September in Qom

The chart illustrates the percentage of sunny days in Qom 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 Qom experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec79%72%60%60%66%96%92%88%99%90%60%69%
Data source: Qom September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Qom in September

As the months progress in Qom, Iran, a clear trend emerges in the daylight duration that characterizes each season. Beginning with a modest 10 hours of sunlight in January and February, days gradually lengthen toward the longest stretch of 14 hours experienced in June and July. This peak of daylight signals the height of summer, after which the hours begin to wane. By September, daylight dips to 12 hours, ushering in a transition toward the autumn months, where the trend of diminishing daylight continues into October and November. This cyclical pattern not only highlights the rhythm of the seasons but also beautifully showcases the natural progression of light and dark throughout the year in this vibrant region.

Average Daylight Hours in Qom for September

The chart illustrates the variation in daylight duration in Qom throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 6m10h 55m11h 58m13h 3m13h 58m14h 25m14h 11m13h 23m12h 21m11h 16m10h 20m9h 51m
Data source: Qom daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Qom

As summer fades into autumn in Qom, Iran, September brings a gentle breeze, with an average wind speed of 2.9 m/s (6 mph), slightly lower than the stronger gusts experienced during the peak summer months. Following a steady increase in wind speed from 1.9 m/s in January to a summer high of 3.8 m/s in July and August, September marks a transition towards calmer conditions. This shift continues into October, where winds taper off further to 2.4 m/s, mirroring the quieter, more serene atmosphere typical of the approaching cooler months. The overall trend reflects a natural ebb and flow, as the winds of Qom shift from lively summer breezes to the more subdued whispers of autumn.

Average September Wind Speed in Qom

The chart displays monthly wind speed patterns in Qom, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.43.32.72.73.43.83.82.9 m/s2.41.91.9
Data source: Qom September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Qom Compares to Other Months

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

September and January exhibit dramatically different weather patterns. In September, temperatures range from a pleasant 15°C (59°F) at night to a scorching 43°C (109°F) during the day, with an average of 29°C (84°F). The month boasts dry conditions, with no recorded precipitation and a relatively low humidity level of 45%. In contrast, January brings much colder temperatures, with lows plummeting to -11°C (13°F) and averages around 7°C (45°F). Daytime highs reach a mild 21°C (71°F), but the month is accompanied by 15 mm (0.6 in) of precipitation over four days and higher humidity at 70%. For more detailed information, you can check Qom weather in January.

In September, the weather is characterized by warm temperatures, with a minimum of 15°C (59°F) and an average high reaching 29°C (84°F), peaking at a scorching 43°C (109°F). It remains completely dry during this month, with no recorded precipitation and a humidity level of 45%. In contrast, February brings a dramatic chill, featuring a minimum temperature of -9°C (17°F) and an average of 10°C (50°F), with highs reaching up to 25°C (78°F). This month experiences some moisture, with a total precipitation of 25 mm (1.0 in) across about 4 days, alongside a higher humidity level of 66%. For more details, you can explore Qom weather in February.

September and March present contrasting weather patterns. In September, the temperatures soar with a minimum of 15°C (59°F), an average of 29°C (84°F), and a scorching maximum reaching up to 43°C (109°F). The month is characterized by complete dryness, with no recorded precipitation and relatively low humidity at 45%. In contrast, March experiences much cooler temperatures, with a minimum of 2°C (36°F), an average of 16°C (61°F), and a maximum of 34°C (94°F). This month also sees moderate rainfall, totaling 36 mm (1.4 inches) over five days, coupled with higher humidity levels at 68%. For more detailed information, check the Qom weather in March.

September in Qom is characterized by its hot and dry conditions, with temperatures ranging from a minimum of 15°C (59°F) to a staggering maximum of 43°C (109°F). The month sees no rainfall, resulting in low humidity levels at around 45%. In contrast, April experiences much milder temperatures, with a minimum of 4°C (39°F) and an average of 21°C (70°F), peaking at 37°C (98°F). This month is also marked by increased humidity at 62% and light precipitation totaling 22 mm (0.8 in) spread over five days. For more details, check out Qom weather in April.

September in Qom boasts warm temperatures, with a minimum of 15°C (59°F) and an average of 29°C (84°F), reaching highs of up to 43°C (109°F). The month is characterized by dry conditions, receiving no precipitation and humidity at a relatively low 45%. In contrast, May features slightly cooler weather, with temperatures ranging from a minimum of 12°C (54°F) to an average of 26°C (80°F) and a maximum of 41°C (107°F). Additionally, May experiences some rainfall, totaling 19 mm (0.7 in) over three days, and a higher humidity level of 64%. For more detailed insights, you can check the link: Qom weather in May.

In June, the weather in Qom is typically warmer than in September, with average temperatures reaching 32°C (91°F) compared to September's 29°C (84°F). While both months can see maximum temperatures peak at around 43°C (110°F), June is characterized by higher humidity at 62%, making it feel more oppressive than the drier September with only 45% humidity. Additionally, June experiences a slight amount of precipitation at 2 mm (0.1 in), whereas September is completely dry with no recorded rainfall. For those interested in more details, you can check Qom weather in June.

In comparing the weather in September to July, we observe notable differences in temperature and humidity levels. September features a minimum temperature of 15°C (59°F) and an average of 29°C (84°F), while July is significantly warmer, with a minimum of 22°C (72°F) and an average of 35°C (95°F). The maximum temperatures also reflect this trend, reaching 43°C (109°F) in September compared to July's peak of 45°C (113°F). Additionally, September experiences lower humidity at 45%, whereas July has a higher humidity level of 52%, contributing to a more oppressive heat in the summer month. Both months see very little precipitation, with September recording no rain and July having just 1 mm (0.0 in). For more details, you can check Qom weather in July.

In comparing the weather between September and August, September experiences slightly cooler temperatures with minimums around 15°C (59°F) and an average of 29°C (84°F), while August has a higher average temperature of 33°C (91°F) with a minimum of 20°C (68°F). Although both months boast zero precipitation, August sees a maximum temperature of 44°C (112°F), compared to September's peak of 43°C (109°F). Interestingly, September has a slightly higher humidity level at 45% compared to August's 40%. For a more detailed look at August weather in Qom, check out Qom weather in August.

September and October present a distinct shift in weather patterns. September typically features high temperatures, with a minimum of 15°C (59°F) and averages soaring to 29°C (84°F), peaking at a scorching 43°C (109°F). It is characterized by dry conditions, recording no precipitation and low humidity at 45%. In contrast, October experiences a noticeable drop in temperatures, with a minimum of 8°C (47°F) and an average of 21°C (70°F), capping at 37°C (99°F). The month introduces some rainfall, with 8 mm (0.3 in) spread over two days, and a rise in humidity to 61%. For more detailed insights, visit Qom weather in October.

September and November present striking contrasts in weather. September boasts high temperatures, with averages around 29°C (84°F) and maximums reaching a scorching 43°C (109°F), while remaining dry with no recorded precipitation and a comfortable humidity of 45%. In stark contrast, November experiences a significant drop in temperature, with averages of 13°C (55°F) and minimums dipping to 1°C (33°F). This month also introduces some rainfall, measuring 28 mm (1.1 in) over five days, alongside a rise in humidity to 72%. For more detailed information on the weather conditions, visit Qom weather in November.

In September, the weather is typically hot and dry, with temperatures ranging from a minimum of 15°C (59°F) to a scorching maximum of 43°C (109°F) and an average of 29°C (84°F). The humidity is relatively low at 45%, and rainfall is virtually nonexistent with 0 mm over 0 days. In contrast, December presents a much cooler climate, where temperatures range from a chilly minimum of -2°C (28°F) to a mild maximum of 22°C (71°F), averaging 8°C (47°F). Precipitation becomes a factor in December, with 20 mm of rain spread over 4 days, and the humidity rises significantly to 70%. For further details, you can check the specific Qom weather in December.

Compare Qom's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Qom

In September, Qom experiences a transition as the intense summer heat gradually eases. With a maximum temperature reaching 43°C (109°F), the month still showcases the lingering warmth of summer, but the average dips to a more comfortable 29°C (84°F). Notably, September is characterized by dry conditions, as evidenced by zero precipitation days throughout the month. This low humidity level at 45% makes for pleasantly warm evenings, contrasting with the sweltering days. Overall, September stands out for its high temperatures without the humidity and moisture typical of other months. For more insights into the region's climate, visit Qom Climate.