Last updated: August 21, 2025
September in Tonekabon, Iran presents a pleasant transition into the fall season, characterized by average temperatures hovering around 19°C (66°F). Daily highs can reach a comfortable 29°C (85°F), while the nights cool down to a refreshing 10°C (51°F). This month also witnesses significant rainfall, with 183 mm (7.2 in) of precipitation spread across 20 days, leading to a humidity level of 72%. Visitors can expect a mix of sweater-worthy evenings and occasional showers, making it a wonderful time to experience Tonekabon's lush landscapes and vibrant culture.
September in Tonekabon, Iran marks a delightful transition into autumn, with temperatures steadily moderating after the summer heat. The minimum temperature hovers around 10°C (51°F), providing a comfortable start to the month, while the average climbs to a pleasant 19°C (66°F). By midday, residents can enjoy the warmth of a maximum temperature reaching 29°C (85°F), creating perfect conditions for outdoor activities. This month serves as a bridge, showcasing a notable shift from the warmer summer temperatures of previous months to the cooler autumn days ahead. As the leaves begin to change, September offers a refreshing blend of warmth and crispness, inviting you to explore this charming coastal town.
September in Tonekabon, Iran, marks a significant peak in precipitation, with 183 mm (7.2 in) of rain falling over 20 days. This surge represents the highest monthly rainfall of the year, following a progressively wet summer where both July and August contributed substantial totals of 140 mm and 146 mm, respectively. As autumn sets in, the weather transitions from the moisture-laden summer, yet September still clings to this pattern of abundant rainfall before the onset of drier October. The consistent rainfall during this month underscores the region's climate dynamics, highlighting a well-defined rainy season that nourishes the lush landscapes of Tonekabon.
In September, Tonekabon experiences a moderate humidity level of 72%, representing a slight increase from the drier conditions of August, which recorded 68%. This shift aligns with the transition into autumn, as humidity levels typically rise again in the months that follow. Notably, early autumn marks a gradual increase from a summer decrease, contributing to the overall yearly trend where the highest levels of humidity are often observed in the winter months, peaking at 79% in November. Thus, September serves as a bridge, preparing the region for the more humid conditions that characterize the latter part of the year.
As September rolls in Tonekabon, Iran, the UV Index remains notably high at 9, classifying it in the very high exposure category. This provides a continuation of the intense sun exposure experienced during the summer months, particularly in May and June when the UV Index peaked at an extreme 12. With a burn time of just 15 minutes, it's crucial for residents and visitors alike to take precautions—utilizing sunscreen, seeking shade, and wearing protective clothing remain vital during this period. The UV Index starts to show signs of decline in October, dropping to 7, yet, for now, September still poses a significant risk for sunburn. For more detailed information, visit Tonekabon UV Index.
UV Risk Categories
As September unfolds in Tonekabon, Iran, residents enjoy a generous 328 hours of sunshine, a slight dip from the summer peak but still abundant enough to bask in the warmth of early autumn. The month continues the trend of vibrant daylight that characterizes the late spring and summer months, with sunshine hours steadily increasing from January's modest 212 hours to a summer high of 390 hours in June. Even as the days begin to shorten, September holds onto the lingering brightness of summer, contrasting with the more subdued light of October, which sees a decrease to 295 hours. This balance of sunny days and cooling temperatures makes September a particularly delightful time, perfect for outdoor activities and enjoying the natural beauty of the region.
In Tonekabon, Iran, September brings with it a 39% likelihood of sunny weather, a figure that reflects a general decline in sunshine as summer transitions to fall. Notably, this month marks a distinct drop when compared to the sunnier days of June and August, which boast chances of 59% and 57%, respectively. As temperatures begin to cool, the possibility of overcast skies increases, a trend mirrored in the earlier months of March and April. Interestingly, the chances of sun do see a slight recovery in the subsequent months of October and November, returning to around 40% and 50%. Thus, while September may not be the sunniest of months, it still offers a modest opportunity for glimpses of sunshine amidst the changing seasons.
In September, Tonekabon experiences a transitional shift in daylight, with the sun gracing the skies for 12 hours each day. This marks a subtle decline from the summer months of 14 hours in June, July, and August, reflecting the onset of autumn. As the days grow shorter, there is a gentle pull away from the long, bright days of summer. The daylight trend continues its descent into October with 11 hours, hinting at the approach of winter's shorter daylight. The gradual ebbing of sunlight not only heralds seasonal change but also invites Tonekabon’s residents to savor the last golden days before winter envelops the region.
As September unfolds in Tonekabon, Iran, the average wind speed gently increases to 1.9 m/s (4 mph), marking a subtle transition from the typically calmer summer months. This month stands out as a slight uptick from August's lull, echoing a broader trend where wind speeds gradually build from the lower averages of 1.5 m/s during the peak of summer towards the more brisk conditions of autumn. The arrival of fall carries with it a refreshing breath of air, setting the stage for a gradual rise in wind speed that will continue into October and beyond, hinting at the dynamic changes that the season brings.
Weather in Tonekabon varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Tonekabon, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, significant differences emerge. September boasts a mild climate with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 29°C (85°F) and an average of 19°C (66°F). It tends to be quite wet, with 183 mm (7.2 in) of precipitation spread over about 20 days, alongside a humidity level of 72%. In contrast, January presents a much colder scenario, with temperatures dropping to a minimum of -8°C (17°F) and reaching a maximum of 14°C (58°F), averaging only 2°C (37°F). Although the precipitation in January is significantly lower at 69 mm (2.7 in) over just 8 days, the humidity remains relatively high at 75%. For a closer look at January conditions specifically, you can refer to Tonekabon weather in January.
September and February offer contrasting weather experiences. In September, temperatures range from a minimum of 10°C (51°F) to a pleasant average of 19°C (66°F), peaking at 29°C (85°F). This month also sees significant rainfall, with about 183 mm (7.2 in) falling over 20 days, resulting in a humidity level of 72%. In stark contrast, February experiences much colder conditions, with temperatures dipping as low as -8°C (17°F) and averaging just 3°C (37°F), peaking at 13°C (57°F). Precipitation in February is lighter at 111 mm (4.4 in) over 12 days, and humidity rises slightly to 77%, making the air feel quite damp. For more detailed insights on the weather during this time, you can visit Tonekabon weather in February.
In comparing the weather between September and March, significant differences are evident. September features milder temperatures, with a minimum of 10°C (51°F), an average of 19°C (66°F), and a maximum of 29°C (85°F). The month is also characterized by higher precipitation, totaling 183 mm (7.2 in) over around 20 days, coupled with a humidity level of 72%. In contrast, March experiences much colder conditions, with a minimum temperature of -5°C (23°F) and an average of just 6°C (43°F), although it can reach a maximum of 21°C (70°F). Precipitation is significantly lower at 82 mm (3.2 in) over 13 days, while humidity slightly increases to 77%. For a detailed look at the weather specifics in Tonekabon during March, visit Tonekabon weather in March.
When comparing the weather in September and April, we can see notable differences in temperature, precipitation, and humidity. September experiences milder temperatures with a minimum of 10°C (51°F) and an average of 19°C (66°F), peaking at 29°C (85°F). In contrast, April is considerably cooler, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 23°C (74°F), averaging just 10°C (50°F). Precipitation is higher in September, totaling 183 mm (7.2 in) across 20 days, compared to April's 109 mm (4.3 in) over 17 days. Interestingly, humidity levels remain relatively high in both months, with September at 72% and April slightly higher at 75%. For a closer look at the specifics of April weather, visit Tonekabon weather in April.
When comparing the weather in September and May, several notable differences emerge. September boasts a warmer average temperature of 19°C (66°F), with maximums reaching up to 29°C (85°F), while May has a cooler average of 15°C (60°F) and max temperatures around 28°C (82°F). In terms of precipitation, September experiences significantly more rainfall at 183 mm (7.2 in) spread over 20 days, compared to May's 84 mm (3.3 in) over 18 days. Humidity levels are slightly higher in May at 77%, compared to September's 72%. For more details on May weather specifics, visit Tonekabon weather in May.
In comparing the weather patterns of September and June, September tends to present a broader temperature range, with minimums reaching 10°C (51°F) and maximums peaking at 29°C (85°F), while June's temperatures elevate slightly, starting at a minimum of 12°C (53°F) and maxing out at 27°C (81°F). Both months feature similar average temperatures around 19°C (66°F), yet June experiences less precipitation overall, totaling 77 mm (3.0 in) over 18 days compared to September's significant 183 mm (7.2 in) across 20 days. Humidity levels are also comparable, with June's 77% being slightly higher than September's 72%, indicating a potentially muggier feel in June. For a more detailed look at weather specifics in June, you can visit Tonekabon weather in June.
In comparing the weather of September and July, we see distinct differences in temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of 10°C (51°F) and an average of 19°C (66°F), while July is warmer, featuring a minimum of 13°C (55°F) and an average of 22°C (71°F). Although July has a slightly lower maximum temperature of 28°C (83°F) compared to September's 29°C (85°F), it has less precipitation overall, totaling 140 mm (5.5 in) compared to September's 183 mm (7.2 in), despite both months experiencing rainfall on about 20 days. Additionally, humidity levels are fairly close, with September at 72% and July at 76%. For more details on July weather, you can visit Tonekabon weather in July.
In August, temperatures were slightly warmer compared to September, with minimums of 12°C (53°F) and maximums reaching up to 28°C (82°F), leading to an average temperature of 21°C (69°F). The weather in September, however, saw cooler minimum temperatures of 10°C (51°F), and while the maximums rose to 29°C (85°F), the overall average dropped to 19°C (66°F). Precipitation levels increased in September to 183 mm (7.2 in) over 20 days, compared to 146 mm (5.7 in) spread over 22 days in August. Additionally, September exhibited slightly higher humidity at 72%, compared to August's 68%. For a more detailed look at August's weather, you can visit Tonekabon weather in August.
In September, the weather features a wider temperature range, with minimums around 10°C (51°F) and maximums hitting 29°C (85°F), while the average hovers at 19°C (66°F). This month experiences considerable rainfall, totaling 183 mm (7.2 in) over 20 days, and humidity levels are at a moderate 72%. In contrast, October brings cooler temperatures, with minimums dropping to 4°C (40°F) and an average of 14°C (57°F), peaking at 24°C (75°F). Precipitation slightly increases to 197 mm (7.8 in), occurring over just 16 days, and humidity rises to 78%. For more specific details about the weather during this month, you can visit Tonekabon weather in October.
September experiences warmer temperatures, with averages around 19°C (66°F) and a maximum of 29°C (85°F), while November sees significantly cooler conditions, where the average drops to 8°C (47°F) and can dip as low as -5°C (24°F). Though precipitation is slightly less in November at 164 mm (6.5 in) compared to September's 183 mm (7.2 in), the number of rainy days is fewer in November with 15 days compared to 20 in September. Additionally, November boasts higher humidity levels at 79%, compared to September's 72%. For more detailed insights, you can check Tonekabon weather in November.
In September, the weather is characterized by mild to warm temperatures, with lows around 10°C (51°F) and highs reaching up to 29°C (85°F), making it a pleasant month overall with an average temperature of 19°C (66°F). However, it experiences a significant amount of rainfall, totaling 183 mm (7.2 in) across about 20 days, coupled with a humidity level of 72%. In contrast, December heralds a much colder climate, with temperatures dropping to a minimum of -7°C (20°F) and an average of just 5°C (42°F). While the maximum temperature can still rise to 20°C (68°F) on certain days, overall precipitation decreases to 83 mm (3.3 in) across about 10 days, and a similar humidity level of 73% prevails. For more insights into the December weather, you can check Tonekabon weather in December.
As September unfolds in Tonekabon, the weather showcases a notable transition from the warmth of summer to the crispness of autumn. With average temperatures hovering around a comfortable 19°C, it's a time when the days are still warm but the nights turn refreshingly cool. This month is characterized by increased rainfall, with nearly two-thirds of the days experiencing precipitation, which enhances the lush, green landscape that the region is known for. Coupled with a relatively high humidity level, September offers a unique blend of warmth and moisture, setting it apart from the drier and hotter summer months. For more details on how these patterns shape the local climate, explore the full story at Tonekabon Climate.