Last updated: August 21, 2025
In September, Kashan, Iran experiences a hottest start to autumn, with maximum temperatures soaring to 39°C (103°F) and an average of 27°C (81°F). The month boasts a dry climate, recording an impressive 0 mm of precipitation, ensuring clear skies and plenty of sunshine. With humidity levels at a low 25%, inhabitants and visitors alike can enjoy warm days and cool evenings, making it ideal for outdoor activities and exploration.
As summer transitions into autumn, Kashan, Iran, experiences a notable shift in temperatures throughout September. With a minimum of 16°C (60°F) and a maximum reaching 39°C (103°F), the month showcases a pleasant average of 27°C (81°F), marking the last glimpses of warmer days before the cooler months arrive. This transition reflects a gradual decline in temperature from the sweltering heights of summer, providing a comfortable climate for outdoor activities and cultural explorations. As the days shorten and the air begins to cool, September becomes an inviting time to experience Kashan’s rich heritage against a backdrop of warm, sun-kissed days.
In Kashan, Iran, the month of September marks a continuation of the dry spell that begins in late spring, with no recorded precipitation or rainy days. This lack of rainfall follows a striking decline in moisture during the summer months of July and August, where the region experienced completely dry conditions. As fall approaches, the shift towards more significant precipitation begins in October, though the transition is gradual. The absence of rain in September highlights a notable trend in Kashan's climate, characterized by its arid summers and a return to wetter conditions as the year progresses into the cooler months.
In Kashan, Iran, September marks a notable transition in humidity levels, with readings at 25%, slightly higher than the preceding months of July and August, which saw a drastic drop to 24% and 20%, respectively. This uptick heralds the end of a dry summer, as humidity begins to climb once again, setting the stage for the more comfortable, moist conditions of autumn. As the year progresses, humidity levels are expected to rise significantly, peaking in the winter months of November and December, which experience levels around 62% to 63%. Overall, September serves as a pivotal month in Kashan's weather pattern, bridging the dry heat of summer and the wetter conditions to come.
As September rolls into Kashan, Iran, the UV Index starts to reflect a significant drop from the intense summer months. With a UV Index of 10, the exposure category is classified as very high, necessitating caution during outdoor activities, especially since the burn time is down to just 15 minutes. This trend highlights a gradual easing from the extreme conditions of earlier months, where May through August boasted indices as high as 13. As autumn approaches, residents and visitors should remain vigilant but can look forward to more moderate UV levels in the coming months. For detailed information on UV warnings in Kashan, check out the Kashan UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Kashan, Iran, boasts a delightful 345 hours of sunshine, marking a gentle decline from the peak of summer's abundance. This month continues the trend of ample sunlight seen throughout the preceding months, peaking in July with 395 hours. The days remain warm and bright, setting a picturesque stage for outdoor activities. While the onset of fall signals a gradual reduction in daylight hours, the sunshine remains generous compared to the colder months ahead, offering a perfect balance between warmth and comfort as the year begins to wind down.
In September, Kashan, Iran, boasts an impressive 97% chance of sunny weather, making it one of the brightest months of the year. This peak follows a gradual rise in sunshine from the earlier months, starting at 63% in March and climbing steadily through the summer. As temperatures soar in June and July, the sun dominates, although even the warm August retains a robust 85% chance of clear skies. With the arrival of September, residents and visitors alike can enjoy the clear, sunlit days that characterize this beautiful time of year, leading seamlessly into the equally favorable sunshine of October at 91%. Whether you're exploring the city's stunning architecture or relaxing in its vibrant gardens, September offers an abundance of sunshine to enhance your experience.
September in Kashan, Iran, marks a transitional period as daylight begins to wane, offering about 12 hours of sunshine. This gradually declining trend in daylight follows a peak of 14 hours experienced in the summer months of June and July. As the days shorten from the vibrant highs of summer, September provides a gentle bridge into fall, with slightly less light than the preceding months of May and August, both boasting 13 hours. The reduction in daylight serves as a reminder of the yearly cycle, with shorter days continuing into October and November. This rhythmic shift not only influences daily life but also sets the stage for the cool, serene beauty of autumn in Kashan.
In Kashan, Iran, the September winds offer a gentle breeze, averaging 2.6 m/s (6 mph), making it a perfect time to experience the area's rich cultural heritage outdoors. Throughout the year, wind speeds show a gradual rise from the calm of winter's 2.0 m/s (4 mph) in January to a peak in July at 3.0 m/s (7 mph). As summer fades, the wind starts to slow down slightly, settling back to 2.6 m/s in September, creating a comfortable atmosphere for exploring the ancient bazaars and stunning architecture. This rhythm in wind patterns hints at the seasonal shift, inviting both locals and travelers to enjoy the beauty of Kashan as the heat of summer lessens, making September an ideal month to visit.
Weather in Kashan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Kashan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present two starkly contrasting weather patterns. In September, temperatures soar with a minimum of 16°C (60°F) and an average high reaching 39°C (103°F), accompanied by dry conditions and only 25% humidity. The month is characterized by sunshine and zero precipitation, making it ideal for outdoor activities. In contrast, January brings a significant chill, with temperatures dipping to a minimum of -7°C (20°F) and an average of 7°C (44°F). This month experiences some precipitation, averaging 21 mm (0.8 in) over five days, along with higher humidity at 60%. For more details on the weather conditions during January, you can visit Kashan weather in January.
In September, the weather is typically warm and dry, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 39°C (103°F), and average at a comfortable 27°C (81°F). The humidity is low at 25%, and there is no recorded precipitation, making it an ideal time for outdoor activities. In stark contrast, February brings much cooler temperatures, with a minimum of -8°C (18°F) and an average of just 9°C (49°F), peaking at 26°C (78°F). February also experiences about 29 mm (1.1 in) of precipitation over five days, along with higher humidity at 56%. This shift in weather highlights the transition from the warm, dry conditions of late summer to the colder, more variable climate of winter. For more detailed information on February's weather, visit Kashan weather in February.
In September, the weather is typically warm and dry, with temperatures ranging from a mild 16°C (60°F) at night to a scorching high of 39°C (103°F) during the day. With no recorded precipitation and low humidity at 25%, it’s a month that invites outdoor activities under the hot sun. In contrast, March experiences a significant drop in temperature, ranging from a chilly 1°C (34°F) at night to a comfortable 33°C (92°F) during the day, accompanied by more humidity at 60%. Rainfall is also a factor in March, with approximately 37 mm (1.4 in) spread over five days, marking the transition to spring. For more detailed insights, you can refer to Kashan weather in March.
September and April present contrasting weather conditions. In September, temperatures soar with a minimum of 16°C (60°F) and an average high of 27°C (81°F), reaching peaks of 39°C (103°F). This month enjoys arid conditions with no recorded precipitation and a low humidity of only 25%, making it a very dry time of year. Conversely, April experiences much cooler temperatures, with a minimum of 5°C (41°F) and an average of 19°C (67°F), and maximums reaching 34°C (93°F). During this month, rainfall is more common, totaling 31 mm (1.2 in) over about 7 days, leading to higher humidity levels at 54%. For more details on weather specifics, check out Kashan weather in April.
In September, temperatures soar with a minimum of 16°C (60°F) and an average of 27°C (81°F), peaking at a high of 39°C (103°F). The weather remains dry, with no recorded precipitation and a low humidity level of 25%. In contrast, May brings cooler temperatures, with a minimum of 13°C (55°F) and an average of 24°C (76°F), while still reaching a maximum of 39°C (102°F). However, May experiences some rainfall, recording 22 mm (0.9 in) over four days and a higher humidity level of 49%. For more details on the weather during this time, check out Kashan weather in May.
In comparing the weather of September and June, we notice a shift in temperatures and humidity levels. September experiences a minimum temperature of 16°C (60°F) and an average of 27°C (81°F), with the maximum reaching 39°C (103°F), while June is generally warmer, with a minimum of 18°C (66°F) and an average high of 31°C (87°F), peaking at 42°C (107°F). Additionally, September typically sees lower humidity at 25%, compared to June’s higher humidity level of 37%. Furthermore, precipitation in September is notably absent, with 0 mm recorded, whereas June has minimal rainfall at 3 mm, as detailed in this link: Kashan weather in June.
In comparing the weather between September and July, September tends to be slightly cooler, with minimum temperatures around 16°C (60°F) and average highs reaching 27°C (81°F), compared to July's warmer minimum of 21°C (71°F) and average high of 33°C (92°F). July experiences more extreme temperatures, with a maximum reaching up to 43°C (110°F), while September peaks at a slightly lower 39°C (103°F). Both months have no recorded precipitation, with July having a humidity level of 24% and September slightly higher at 25%. For a detailed look at July weather patterns, you can visit Kashan weather in July.
In August, temperatures soared with a minimum of 19°C (67°F), an average of 31°C (88°F), and a peak of 43°C (109°F), making it the hottest month. Humidity was slightly lower at 20%, and there was no recorded precipitation throughout the month, similar to September. In contrast, September saw slightly cooler temperatures, with a minimum of 16°C (60°F), an average of 27°C (81°F), and a maximum of 39°C (103°F). Humidity also dropped to 25%, maintaining the dry conditions. For more detailed information on the weather during this month, you can visit Kashan weather in August.
September's weather features warmer temperatures, with a minimum of 16°C (60°F) and an average of 27°C (81°F), peaking at a scorching 39°C (103°F). In contrast, October sees a significant drop in temperature, with lows of 8°C (48°F) and an average of 20°C (68°F), maxing out at 34°C (93°F). Additionally, October experiences some precipitation, totaling 8 mm (0.3 in) over just one day, which is a stark difference from September's dry spell with no recorded rainfall. Humidity levels also increase in October to 42%, compared to September's 25%. For more details, check out Kashan weather in October.
September is characterized by warm temperatures, with a minimum of 16°C (60°F) and an average high of 27°C (81°F), reaching up to a scorching 39°C (103°F) on the hottest days. The month is also dry, seeing no recorded precipitation and low humidity levels of just 25%. In contrast, November brings a significant shift in the weather, with cooler temperatures averaging around 12°C (54°F) and a maximum reaching 30°C (86°F). This month also experiences increased humidity at 62% and recorded precipitation totaling 35 mm (1.4 in) over six days. The contrasting weather patterns highlight the transition from the hot, arid conditions of September to the cooler, wetter climate of November. For more details, visit Kashan weather in November.
In September, the weather is typically warm with temperatures ranging from a minimum of 16°C (60°F) to a scorching maximum of 39°C (103°F), and an average temperature of 27°C (81°F). It is characterized by dry conditions, with no recorded precipitation and a low humidity level of 25%. In contrast, December presents a stark shift in weather, where temperatures drop significantly, with a minimum of -4°C (25°F), an average of 8°C (48°F), and a maximum of 22°C (72°F). December also sees increased precipitation, with 29 mm (1.2 in) over about five days, and a higher humidity level of 63%. For more detailed insights about December weather in this region, check out Kashan weather in December.
As September unfolds in Kashan, the weather exhibits a distinct transformation that sets it apart from the sweltering summer months. With a noticeable drop in humidity and an absence of precipitation, this month provides a refreshing break from the relentless heat, characterized by daytime highs that can still touch 39°C (103°F). The average temperature encourages outdoor activities, making it an ideal time for exploration. Unlike the humid summer, September's drier air and cooler evenings offer a pleasant balance, making it an enchanting time to experience the unique charm of Kashan. For a deeper understanding of what to expect throughout the year, check out Kashan Climate.