September Weather in Kermanshah, Iran

Last updated: August 21, 2025

In Kermanshah, Iran, September showcases a warm and dry climate, with maximum temperatures peaking at 38°C (101°F) and an average of 24°C (76°F). The nights bring a cool respite, dipping to a minimum of 9°C (48°F). With zero days of precipitation and only 1 mm of rain, the month offers a crisp atmosphere complemented by a low humidity level of 27%. This combination makes September an ideal time to explore the region, basking in the sunshine while enjoying the pleasant evening temperatures.

September Temperature in Kermanshah

In September, Kermanshah experiences a pleasant transition from the sweltering summer to the cooler embrace of autumn. With minimum temperatures at 9°C (48°F) and an average of 24°C (76°F), the city strikes a balance between warmth and comfort. The maximum temperature peaks at a still-warm 38°C (101°F), making it one of the last chances to enjoy the summer sun before the cooler months set in. This month serves as a gentle reminder of summer's exit, with cooler nights inviting residents to bask in the evening breeze, presenting a perfect opportunity for outdoor activities and exploration. The overall trend indicates a gradual decline in temperature as the autumn season approaches, making September a delightful prelude to the coming months.

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

The chart illustrates September temperature patterns in Kermanshah, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kermanshah, 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).
JanFebMarAprMayJunJulAugSepOctNovDec374047556576848375624841
Data source: Temperature data for Kermanshah 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 Kermanshah

In Kermanshah, Iran, September marks a noticeable transition in the weather pattern, with precipitation dwindling to a mere 1 mm (0.0 in) and zero rainy days recorded. This sharp decline follows a wetter spring, where averages hovered around 93 mm (3.7 in) in April and peaked at 102 mm (4.0 in) in February. The region experiences a dry summer, with no rainfall in July and August, and September continues this trend, signaling a shift towards early autumn dryness. As the months progress, the precipitation begins to slightly climb again in October, hinting at the return of more substantial rainfall in the months to follow.

September Precipitation Trends in Kermanshah

The chart displays monthly precipitation patterns in Kermanshah, 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 Kermanshah, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6110210193412001216270
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kermanshah

In Kermanshah, Iran, September marks a noticeable shift in humidity as it rises slightly to 27% after the scorching summer months. This increase follows a significant drop from 69% in January to a record low of 22% in August, highlighting the region's seasonal variance. As the sweltering heat begins to recede, the humidity signals the onset of autumn, gradually preparing for higher moisture levels in the coming months, particularly as it climbs to 46% in October. The trend illustrates a clear transition, fostering a more comfortable climate as the days grow shorter and cooler.

September Average Humidity in Kermanshah

This chart illustrates the average monthly humidity levels in Kermanshah, 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 Kermanshah is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec69%67%66%56%48%35%25%22%27%46%60%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kermanshah

In September, Kermanshah experiences a UV Index of 10, placing it in the very high exposure category with a burn time of just 15 minutes. This marks a slight decrease from the intense summer months, yet the risk of harm from unprotected sun exposure remains significant. The trend shows a progression from the extreme levels of May through August, indicating that while the summer heat begins to wane, caution is still essential when enjoying outdoor activities. As we transition into fall, the UV Index will continue to drop, with October showing a more moderate rating. For more detailed insights into the UV Index throughout the year, visit Kermanshah UV Index.

Maximum UV Index Levels in Kermanshah for September

The chart shows the monthly maximum UV Index (UVI) for Kermanshah 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 Kermanshah typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101312121110754
Data source: Kermanshah 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 Kermanshah

September in Kermanshah, Iran, continues the city’s journey through a radiant year, offering 349 hours of sunshine that mark a noticeable transition into the fall. While summer peaks with an impressive 400 hours in June, the sun gradually begins to retreat as autumn approaches, resulting in a slight decline in sunlight hours. This gradual dimming is reminiscent of the previous months, which showcased a splendid array of sunlight, peaking in May with 389 hours. As daylight starts to wane, September provides a vibrant mix of warmth and a hint of the approaching chill, making it a delightful time for outdoor activities amidst the lingering summer glow. Overall, the trend reflects Kermanshah’s rich seasonal contrasts, where the sun generously shines through much of the year, culminating in a beautiful transition that invites adventure and respite alike.

Monthly Sunshine Duration in Kermanshah: September Highlighted

The September sunshine duration represents the total number of hours Kermanshah 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.
JanFebMarAprMayJunJulAugSepOctNovDec222h264h319h341h389h400h399h384h349h322h277h264h
Data source: Kermanshah September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kermanshah During September

In Kermanshah, Iran, the sunny disposition of September is nothing short of remarkable, boasting an impressive 98% chance of sunshine. As summer transitions into autumn, the likelihood of clear skies remains high, following the peak of July and August, with their near-perfect sunshine percentages. This trend highlights a reassuring consistency in weather, making September a delightful month to enjoy outdoor activities and vibrant landscapes. While the chances for sunny weather taper off in the following months, the golden rays of September stand out as a splendid farewell to summer before the cooler autumn sets in.

Percentage of Sunny Days in September in Kermanshah

The chart illustrates the percentage of sunny days in Kermanshah 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 Kermanshah experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec67%62%57%65%77%97%98%90%99%87%58%48%
Data source: Kermanshah September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kermanshah in September

As summer transitions to autumn in Kermanshah, September offers a gentle reduction in daylight, with approximately 12 hours of sunlight. This marks a shift from the peak of 14 hours observed in the summer months of June and July. The days gradually shorten, as seen in the preceding months, where August still enjoys a generous 13 hours. Notably, this decline in daylight continues into October, culminating in the shorter days of winter. Overall, the rhythm of daylight duration reflects the region's distinct seasonal changes, allowing residents to embrace the beauty of each phase as nature shifts from the vibrant warmth of summer to the cooler embrace of fall.

Average Daylight Hours in Kermanshah for September

The chart illustrates the variation in daylight duration in Kermanshah throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 56m11h 58m13h 2m13h 56m14h 23m14h 9m13h 22m12h 21m11h 17m10h 21m9h 53m
Data source: Kermanshah daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kermanshah

As September arrives in Kermanshah, the gentle breeze picks up to an average wind speed of 2.2 m/s (5 mph), reflecting a subtle increase from the summer months. This shift marks a transition, as the wind begins its gradual decline into the cooler autumnal months. Throughout the summer—particularly July and August—winds remain consistent at 2.1 to 2.3 m/s (5 mph), bringing a refreshing touch to the warm temperatures. However, by September, the air feels slightly crisper, hinting at the impending change of season. Following this pattern, wind speeds drop to 1.9 m/s (4 mph) in October, tying the month back to the calmer winds of winter, suggesting a cyclical rhythm that characterizes Kermanshah's climate.

Average September Wind Speed in Kermanshah

The chart displays monthly wind speed patterns in Kermanshah, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.92.32.32.12.42.32.12.2 m/s1.91.71.9
Data source: Kermanshah September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kermanshah Compares to Other Months

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

September and January present stark contrasts in weather. In September, temperatures can soar to a high of 38°C (101°F) with an average of 24°C (76°F), accompanied by minimal precipitation of just 1 mm and low humidity at 27%. In contrast, January experiences much colder temperatures, with a maximum of only 16°C (61°F) and a frigid minimum of -13°C (8°F). This month sees significantly higher precipitation levels at 61 mm spread over 9 days, and significantly increased humidity at 69%. For more details on January weather, you can check Kermanshah weather in January.

September and February present starkly contrasting weather patterns. In September, temperatures range from a comfortable 9°C (48°F) at night to a scorching maximum of 38°C (101°F) during the day, all while experiencing a dry atmosphere with just 1 mm of precipitation and a humidity level of 27%. In contrast, February brings a much colder climate with minimum temperatures plummeting to -11°C (13°F) and average highs only reaching 18°C (65°F). This month experiences considerably more precipitation, totaling 102 mm (4.0 in) over about 10 days, and the humidity level rises to 67%. For more insights on February's climate, you can check Kermanshah weather in February.

When comparing the weather in September and March, it's clear that they present striking contrasts. September boasts warm temperatures with a minimum of 9°C and a maximum reaching up to 38°C, while the average temperature is a pleasant 24°C. The month is characterized by low humidity at just 27% and virtually no precipitation, making it a dry and warm time of year. In stark contrast, March experiences much cooler conditions, featuring a minimum temperature of -6°C and a maximum of 25°C, with an average of only 8°C. This month is significantly wetter, receiving 101 mm of precipitation over 11 days, coupled with higher humidity levels at 66%. For more details, you can check out Kermanshah weather in March.

September and April showcase strikingly different weather patterns. In September, temperatures soar with a minimum of 9°C (48°F) and an average high reaching 38°C (101°F), accompanied by low humidity levels at 27% and virtually no precipitation. In contrast, April experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 28°C (82°F), along with substantial rainfall of 93 mm (3.7 in) spread over 12 days, resulting in higher humidity at 56%. For a more detailed understanding of April’s climate, visit Kermanshah weather in April.

Comparing the weather in September and May reveals distinct differences in temperature and precipitation. September boasts higher temperatures, with averages reaching up to 24°C (76°F) and maximums soaring to 38°C (101°F), while May’s averages are cooler at 18°C (65°F) and peak at 33°C (92°F). Additionally, September experiences minimal precipitation, with just 1 mm recorded over 0 days, resulting in a humidity level of only 27%. In contrast, May is considerably wetter, receiving 41 mm of rain over 9 days, which leads to a higher humidity of 48%. For more details on May weather, check out Kermanshah weather in May.

In comparing the weather of September and June, we find that both months feature similar average temperatures of around 24°C (76°F). However, September generally experiences a wider range in temperature, with a minimum of 9°C (48°F) and a maximum of 38°C (101°F), while June has a slightly higher minimum of 10°C (50°F) and a peak temperature of 39°C (103°F). Both months see minimal precipitation, with September recording just 1 mm and June slightly higher at 2 mm, still resulting in no rainy days for either month. Additionally, September boasts lower humidity at 27%, compared to June's 35%. For a more detailed look at June conditions, you can check out Kermanshah weather in June.

In comparing the weather between September and July, September typically experiences a broader range of temperatures, with a minimum of 9°C (48°F) and a maximum of 38°C (101°F). The average temperature in September is 24°C (76°F), which is slightly cooler than July, where the minimum is 15°C (59°F), the average is 29°C (84°F), and the maximum reaches 41°C (106°F). Both months see minimal precipitation, with September recording just 1 mm (0.0 in) and July having none at all. Humidity levels are fairly close, with September at 27% and July slightly lower at 25%. For more detailed insights on July weather, you can check Kermanshah weather in July.

In comparing the weather of September and August, September offers a wider temperature range, with minimums dipping to 9°C (48°F) and maximums reaching 38°C (101°F). This contrasts with August, where temperatures remain warmer overall, with minimums at 14°C (58°F) and maximums peaking at 40°C (105°F). Both months experience little to no precipitation, but September is noticeably drier with only 1 mm recorded, while August sees a complete absence of rain. Additionally, September's humidity is slightly higher at 27% compared to August’s 22%. For more specifics on August conditions, you can check out Kermanshah weather in August.

September and October weather present a stark contrast in terms of temperature and humidity. In September, temperatures range from a minimum of 9°C (48°F) to a scorching maximum of 38°C (101°F), with an average of 24°C (76°F) and minimal precipitation at just 1 mm over 0 days. The humidity remains relatively low at 27%. In contrast, October sees a significant drop in temperatures, with a minimum of 3°C (37°F) and an average of 17°C (62°F), while maximum temperatures reach 33°C (91°F). This month also experiences increased precipitation totaling 21 mm over 4 days, leading to a rise in humidity to 46%. For more details, visit Kermanshah weather in October.

September and November present strikingly different weather patterns. In September, temperatures are warm and can soar to a maximum of 38°C (101°F), with an average of 24°C (76°F) and virtually no precipitation, making it a dry month with a low humidity of 27%. In contrast, November sees much cooler temperatures, with a minimum of -4°C (26°F) and an average of 9°C (48°F), accompanied by significant precipitation of 62 mm (2.4 in) over nine days, resulting in a much higher humidity level of 60%. For more details, you can check out Kermanshah weather in November.

September and December present striking contrasts in weather. In September, temperatures can range from a pleasant 24°C (76°F) on average to highs reaching up to 38°C (101°F), with very little precipitation at just 1 mm over the month and humidity at a comfortable 27%. In stark contrast, December experiences much cooler temperatures, with an average of only 5°C (41°F) and minimums dropping as low as -6°C (21°F). Precipitation increases significantly during December, totaling 70 mm (2.8 in) across about 9 days, accompanied by higher humidity levels of 72%. For more insights into December’s weather patterns, check out Kermanshah weather in December.

Compare Kermanshah's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kermanshah

As September rolls in, Kermanshah experiences a notable transition in its weather profile. This month showcases warmer temperatures with peaks reaching a sizzling 38°C (101°F) while maintaining a comfortable average of 24°C (76°F). Unlike the rainy months that precede it, September stands out with virtually no precipitation, showcasing an arid climate that keeps humidity low at just 27%. As the summer heat gradually gives way to the cooler evenings—where temperatures can drop to a refreshing 9°C (48°F)—September offers a unique blend of warm days and pleasant nights, making it an ideal time to explore the region's natural beauty. For more insights into the annual variations, check out Kermanshah Climate.