Last updated: August 21, 2025
In September, Hamadan, Iran, experiences mild and pleasant weather, with daytime temperatures peaking at a maximum of 35°C (95°F) while settling at an average of 22°C (72°F). The nights bring a refreshing coolness, dipping to a minimum of 8°C (47°F). This month boasts remarkably low precipitation, recording only 1 mm (0.0 in) across 0 days, resulting in a dry and comfortable atmosphere. With humidity levels around 40%, outdoor activities can be enjoyed under clear skies, making September an ideal time to explore this historical city.
As September unfolds in Hamadan, Iran, temperatures begin to transition from the summer heat, offering a refreshing shift in climate. The month boasts a comfortable average temperature of 22°C (72°F), with daily highs peaking at 35°C (95°F), providing warm afternoons perfect for outdoor activities. Nights cool down pleasantly, with minimum temperatures dropping to 8°C (47°F), making it ideal for cozy evenings. This gradual decline in temperature marks a noteworthy trend, as the city pivots from the peak summer months, blending the remnants of warmth with the approach of autumn. September serves as a delightful interlude, balancing comfort and warmth, reflecting the beauty of changing seasons in this historic region.
In September, Hamadan experiences a stark contrast to the wetter months preceding it, with a mere 1 mm of precipitation recorded, effectively averaging 0.0 inches of rainfall across the month. This lack of rainfall marks a significant drop from the high levels seen in the spring months of March and April, where precipitation peaked at 86 mm and 98 mm respectively, with an equally notable number of rainy days. Throughout the summer, particularly in July and August, precipitation diminished to a near standstill, manifesting in 0 days of rain, setting the stage for September's dryness. As the region transitions into the autumn months, an uptick in rain is anticipated, with October bringing a more typical 32 mm of rainfall, suggesting that September serves as a transitional lull before the wetter season returns.
In September, Hamadan, Iran experiences a modest rise in humidity to 40%, following the significant drop seen in the sweltering summer months of July and August, where levels plummeted to a mere 36%. This slight increase signals the transition towards the more humid autumn months that lie ahead, as humidity begins to climb steadily through October and November. The trend showcases a gradual return of moisture in the air, hinting at the changing seasons and preparing residents for the lush, rainier periods that follow winter's approach. This shift provides a refreshing relief from the summer heat, contributing to a more comfortable climate as the year unfolds.
As September rolls into Hamadan, Iran, the UV Index remains notably high, sitting at 10, which falls into the very high exposure category. This signifies that sun protection is still crucial, with a burn time of just 15 minutes. Observing the trends from earlier months, the UV Index peaked at 13 in May and June, indicating that summer months bear the greatest intensity. However, September marks a slight decrease compared to the extreme summer values, yet it emphasizes the ongoing need for sun safety as autumn approaches. To stay informed about the UV conditions, you can check the detailed report at Hamadan UV Index.
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In Hamadan, Iran, September brings a delightful transition as the summer warmth begins to wane, yielding 351 hours of sunshine. This highlights a gradual decline from the peak of 405 hours in June, yet it remains vibrant compared to the earlier months of the year. The sun-drenched days of September invite a sense of relaxation and reflection, echoing the playful bursts of sunlight that marked the peak summer months. As the daylight hours inch lower through the autumn, the enchanting beauty of Hamadan continues to bask in its rich golden hues, making September not just a bridge between seasons but a celebration of the lingering warmth of the summer sun.
As summer transitions into autumn, September in Hamadan, Iran, emerges as one of the sunniest months of the year, boasting an impressive 97% chance of sunny weather. Following the peak sunshine months of June and July, which feature rates of 91% and 85% respectively, September maintains this delightful trend with pleasantly warm days. This significant increase in sunny days can be attributed to the receding heat of summer yet still generous sunlight, making it an ideal time for outdoor activities. In contrast, the likelihood of sunny days drops noticeably in the following months, as October sees an 85% chance, leading to more variable weather patterns as autumn settles in. Overall, September stands out as a golden opportunity to bask in the abundant sunshine before the cooler months arrive.
As September unfolds in Hamadan, Iran, daylight begins to wane, transitioning from the long summer days of June and July, which boast 14 hours of sun, to a more tempered 12 hours. This month marks a notable shift from the vibrant brightness of late summer, returning to the more moderate lengths seen earlier in the year, like April and May with their 13-hour days. As autumn approaches, the gradual decrease in daylight serves as a gentle reminder of nature's rhythm, inviting residents to embrace the cozy ambiance that comes with the changing seasons. By the end of September, the daylight duration starts to dip further, setting the stage for the shorter days of fall and winter ahead.
As September settles into Hamadan, Iran, the wind dances gently at an average speed of 2.6 m/s (6 mph), echoing the calmness of late summer. This subtle breeze marks a transition from the higher gusts of March, where wind speeds peak at 3.1 m/s (7 mph), towards the more serene currents observed in the fall months. Throughout the year, the winds show a remarkable consistency, with most months hovering around 2.6 to 2.8 m/s. The slight dip heading into October, where the average drops to 2.4 m/s (5 mph), hints at the cooling transformation of the season as the lively days of summer give way to the tranquility of autumn. Overall, the gentle winds of September in Hamadan offer a refreshing herald to the changing seasons, providing a perfect backdrop for outdoor pursuits as nature begins to don its autumnal attire.
Weather in Hamadan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hamadan, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, temperatures range from a mild 8°C (47°F) to a warm high of 35°C (95°F), offering an average of 22°C (72°F) with very little precipitation and low humidity at 40%. In contrast, January experiences much colder temperatures, with a minimum of -16°C (4°F) and an average of -1°C (31°F), peaking at a maximum of 14°C (57°F). This winter month also sees significantly more precipitation, totaling 45 mm (1.8 in) across 8 days, coupled with a much higher humidity level of 76%. For a deeper look at what January brings, you can check the details here: Hamadan weather in January.
September and February present stark contrasts in weather. September boasts mild temperatures with minimums around 8°C (47°F) and maximums soaring up to 35°C (95°F), making it a warm and dry month with only 1 mm of precipitation and low humidity at 40%. In sharp contrast, February experiences frigid conditions, with temperatures plummeting to a minimum of -19°C (-1°F) and averaging just 1°C (34°F). This winter month sees significantly more precipitation at 76 mm (3.0 in) spread across 9 days, alongside higher humidity levels at 72%. For a deeper look into February's weather specifics, visit Hamadan weather in February.
In comparing the weather between September and March, it's clear that there are significant differences in temperature and precipitation patterns. September boasts a minimum temperature of 8°C (47°F) and an average high of 35°C (95°F), offering warm and dry conditions with virtually no rainfall and a low humidity of 40%. In stark contrast, March experiences much cooler temperatures, with a minimum of -7°C (19°F) and an average high of only 24°C (75°F). Additionally, March is quite wet, with an average precipitation of 86 mm (3.4 in) across 13 days, and a higher humidity level of 73%. For more detailed information, check out Hamadan weather in March.
In comparing the weather of September and April, a stark contrast emerges. September features a mild climate with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), enjoying very little precipitation, with no rainy days and a humidity level of 40%. In contrast, April brings a much cooler and wetter environment, with temperatures dipping as low as -4°C (26°F) and averaging 11°C (52°F). This month sees significant rainfall, totaling 98 mm (3.9 in), over 15 days, and a higher humidity level of 66%. For a more detailed look at April conditions, visit Hamadan weather in April.
September and May present distinctly different weather patterns. In September, temperatures are generally warmer, ranging from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with low humidity at around 40%. This month is characterized by dry conditions, boasting virtually no precipitation. In contrast, May experiences cooler temperatures, with a range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F). May is also significantly wetter, receiving about 59 mm (2.3 in) of rain over approximately 12 days, along with higher humidity levels at 62%. For more specifics on May weather, you can visit Hamadan weather in May.
September and June present distinct weather characteristics. September typically enjoys a warm average temperature of 22°C (72°F), peaking at 35°C (95°F), while June boasts a slightly higher average of 23°C (74°F) with a maximum of 37°C (99°F). Although both months experience minimal precipitation, September stands out with no recorded rainy days, compared to June's 5 mm of rain over two days. Humidity levels are also notably different, with September being drier at 40% compared to June's 54%. These variations contribute to a more comfortable atmosphere in September, making it a preferable time for outdoor activities. For more detailed insights into June's weather, you can check Hamadan weather in June.
In comparing the weather conditions of September and July, September tends to be slightly cooler, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), and an average of 22°C (72°F). In contrast, July is warmer, featuring a minimum of 14°C (58°F) and reaching up to 38°C (100°F), with an average temperature of 27°C (81°F). Both months experience minimal precipitation, but July has a slightly higher amount at 2 mm (0.1 in) compared to September's 1 mm (0.0 in). Additionally, July has a higher humidity level at 46%, while September's humidity is lower at 40%. For a more in-depth look at July's weather, you can check out Hamadan weather in July.
In comparing the weather of September and August, it’s clear that September experiences a slightly cooler climate overall, with average temperatures dropping from 26°C (79°F) in August to 22°C (72°F) in September. The maximum temperature in September reaches 35°C (95°F), which is still warm but less extreme than August's high of 37°C (99°F). Moreover, September sees minimal precipitation, with only 1 mm recorded, while August experiences a bit more rain at 2 mm, although both months had no rainy days. Humidity is relatively low in both months, with September at 40% and August slightly lower at 36%. For more detailed insights, you can check Hamadan weather in August.
September and October bring significant changes in weather patterns. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 35°C (95°F), with an average temperature of 22°C (72°F) and virtually no precipitation throughout the month. The humidity remains relatively low at 40%. In contrast, October experiences cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 28°C (83°F), averaging 14°C (58°F). October also sees increased precipitation, with 32 mm (1.3 in) accumulated over 6 days, leading to a rise in humidity to 59%. For more details, you can check Hamadan weather in October.
September and November present distinctly different weather conditions. In September, the temperatures range from a comfortable minimum of 8°C (47°F) to a warm maximum of 35°C (95°F), with an average of 22°C (72°F) and virtually no rainfall, leading to low humidity at around 40%. In contrast, November ushers in much cooler temperatures, with a minimum of -6°C (22°F), an average of 6°C (44°F), and a maximum of 22°C (72°F). This month also sees significant precipitation, totaling 57 mm (2.3 in) over 10 days, and humidity rises to 70%. For more detailed information, you can view Hamadan weather in November.
September weather is characterized by warm temperatures, with averages around 22°C (72°F) and maximums reaching up to 35°C (95°F). It is a dry month with very low precipitation, registering only 1 mm and experiencing no rainy days, coupled with a relatively low humidity of 40%. In contrast, December brings a significant drop in temperatures, with averages around 2°C (36°F) and a minimum of -12°C (12°F). This month is much wetter, with 55 mm of precipitation over 8 days and increased humidity at 75%. For more detailed information, you can check the Hamadan weather in December.
As September unfolds in Hamadan, the weather transitions into a pleasantly moderate phase, setting itself apart from the blistering heat of summer months. With warm temperatures averaging around 22°C (72°F) and maximums reaching up to 35°C (95°F), it provides a gentle reprieve from the extreme highs previously experienced. Additionally, the month boasts remarkably low humidity levels at 40%, combined with virtually no rainfall, ensuring clear skies for outdoor activities. This dry and mild climate makes September an ideal time to explore the beauty of Hamadan. For a deeper dive into what to expect throughout the year, visit Hamadan Climate.