Last updated: August 21, 2025
In October, Tehran experiences a delightful transition into cooler weather, with maximum temperatures reaching up to 26°C (79°F) and an average of a comfortable 14°C (57°F). The month can chilly nights with minimum temperatures dipping to 1°C (34°F). While the city enjoys the beauty of autumn, it also sees 31 mm (1.2 in) of rainfall over approximately 6 days, contributing to a mild humidity level around 61%. This blend of crisp air and occasional showers makes October a refreshing time to explore the vibrant culture and stunning landscapes of Tehran.
As October settles in Tehran, the city transitions into a cooler yet pleasant climate, with temperatures ranging from a chilly minimum of 1°C (34°F) to a mild maximum of 26°C (79°F). This month marks a significant shift from the summer heat, where temperatures often soared above 30°C (86°F). The average temperature hovers around 14°C (57°F), inviting locals and visitors alike to enjoy outdoor activities amid the beautiful autumn foliage. As the month progresses, the crisp air and clear skies signal the impending winter, making October a charming blend of warmth and coolness as Tehran prepares for its seasonal change.
October brings a refreshing change to Tehran's climate, with precipitation totaling 31 mm (1.2 in) over six days. This month marks a notable increase in rain compared to the dry summer months, where July and August recorded almost no rainfall. The gradual shift toward wetter conditions continues from September's modest 4 mm (0.2 in), laying the groundwork for the more substantial rains of November, which typically sees 47 mm (1.9 in). This trend underscores Tehran's transition from the arid heat of summer into the more temperate fall season, making October an essential precursor to the winter months ahead.
As October rolls into Tehran, the city's humidity begins to rise slightly, settling at a comfortable 61%. This marks a significant shift from the drier spell of summer, where humidity levels plummeted to their lowest in August at just 40%. Following a gradual increase through the months, October's humidity is a refreshing prelude to the winter months, when levels soar back to approximately 72% in November. The overall trend showcases a clear transition from the hot, arid days of summer to the cooler and more humid conditions of fall, creating a pleasant, albeit transitional, climate for residents and visitors alike.
In October, Tehran experiences a high UV Index of 7, making sun safety essential as the average burn time is approximately 25 minutes. This month marks a noticeable decrease from the extreme levels seen during the summer, but caution is still advised. The UV Index drops from a peak of 13 in May, highlighting a transition toward more manageable sun exposure. As the year progresses, the UV levels in Tehran show a distinct trend, with an upward surge during the hottest months, followed by a gradual decline as autumn sets in. Staying informed is crucial for those who enjoy the sun, so be sure to check the latest updates on the Tehran UV Index.
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As October rolls into Tehran, the city enjoys a delightful 311 hours of sunshine, making it one of the sunnier months of the fall season. The trend showcases a gentle decline from the summer highs of nearly 400 hours in July and August, reflecting a transition as the days grow shorter. However, October still maintains a generous amount of sunlight compared to the dreary winter months that follow, such as November's 256 hours. This period is characterized by a vibrant interplay of warm autumn hues and crisp air, inviting residents and visitors alike to relish the beauty of Tehran before the colder months settle in. With each passing month, the sunlight slowly ebbs, yet October holds onto the warmth, offering a perfect blend of natural light and mild temperatures.
As autumn settles in, Tehran enjoys a notable likelihood of sunny weather in October with a comfortable 84% chance of sunshine. This month follows a trend of seemingly stable sunny days throughout the summer, peaking at an impressive 99% in September and maintaining a robust percentage as temperatures cool. October’s sunny disposition stands out, especially when compared to the bleaker skies of the later months, November and December, where chances drop to 57% and 68% respectively. Thus, for those planning outdoor activities or simply wishing to soak in the warm fall sun, October offers a delightful balance of brightness before winter sets in.
As October arrives in Tehran, the daylight duration begins to wane, with the city enjoying 11 hours of sunlight. This marks a subtle decline from the vibrant, sun-drenched days of summer when daylight peaked at 14 hours in June and July. The transition into autumn showcases a gradual descent in light, starting from the 14 hours in May, reflecting nature's shift towards shorter days. October's daylight is a reminder of the seasonal ebb and flow, leading into the cooler months ahead. With daylight decreasing to 10 hours by November, Tehran residents can savor the last of the lingering autumn light before winter settles in.
As October blankets Tehran with a gentle embrace, the city experiences an average wind speed of 1.7 m/s (4 mph), mirroring the calm breezes of winter's precursor months. This slight dip in wind speed from September's 2.1 m/s (5 mph) serves as a nostalgic farewell to summer’s warmth, while inviting in the crispness of autumn. Interestingly, wind conditions throughout the year reveal a subtle fluctuation, with spring months gradually increasing toward summer, only to recede again as the year draws to a close. October's winds, though mild, carry the whispers of change, echoing the anticipation of the chillier days ahead.
Weather in Tehran varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Tehran, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present a stark contrast in weather conditions. In October, temperatures range from a pleasant minimum of 1°C (34°F) to a comfortable maximum of 26°C (79°F), with an average of 14°C (57°F) and relatively low precipitation of 31 mm (1.2 in) over six days. The humidity sits at 61%, contributing to a mild fall atmosphere.
In comparison, January brings much colder weather, with temperatures plunging to a minimum of -16°C (3°F) and only reaching a maximum of 12°C (53°F), averaging at -2°C (29°F). This month sees slightly higher precipitation of 39 mm (1.5 in), also spread over six days, and a higher humidity level of 70%, resulting in a distinctly wintery environment. For more detailed information, you can check Tehran weather in January.
October and February present starkly contrasting weather patterns. In October, temperatures range from a minimum of 1°C (34°F) to a comfortable maximum of 26°C (79°F), with an average temperature of 14°C (57°F). The month sees relatively low precipitation at 31 mm (1.2 in) over about 6 days, accompanied by moderate humidity of 61%. In contrast, February is much colder, with temperatures plummeting to a minimum of -23°C (-9°F) and peaking at just 11°C (52°F), averaging around 0°C (32°F). This month experiences higher precipitation, totaling 66 mm (2.6 in) across 9 days, and slightly increased humidity at 66%. For more information on February weather in Tehran, you can visit Tehran weather in February.
October and March exhibit distinctly different weather patterns. In October, temperatures range from a chilly 1°C (34°F) at night to a warm 26°C (79°F) during the day, with an average of 14°C (57°F). The month sees relatively low precipitation, with about 31 mm (1.2 in) over approximately six days, and the humidity averages around 61%. In contrast, March experiences colder temperatures, dipping as low as -8°C (17°F) and averaging 5°C (42°F), with a maximum of 21°C (70°F). This month also has more rain, totaling about 58 mm (2.3 in) across ten days, while the humidity is slightly higher at 68%. For a detailed look at March weather conditions, you can visit Tehran weather in March.
When comparing the weather in October and April, several notable differences emerge. October typically has a minimum temperature of 1°C (34°F) and an average of 14°C (57°F), peaking at a comfortable 26°C (79°F). In contrast, April experiences cooler conditions with a minimum of -7°C (19°F) and an average of 11°C (53°F), though it can also reach a maximum of 25°C (77°F). Precipitation levels are higher in April, with 70 mm (2.8 in) falling over 11 days, compared to October's 31 mm (1.2 in) over just 6 days. Humidity remains fairly consistent between the two months, hovering around 61% in October and slightly higher at 62% in April. For those looking for more specifics, you can check Tehran weather in April.
October and May showcase distinct weather patterns that reflect the transition between seasons. In October, temperatures range from a chilly 1°C (34°F) at night to a warm 26°C (79°F) during the day, averaging around 14°C (57°F). The month experiences about 31 mm (1.2 in) of precipitation over 6 days, with a humidity level of 61%. In contrast, May offers a milder climate, with minimum temperatures of 4°C (40°F) and maximums reaching 30°C (86°F), averaging 17°C (63°F). It sees a slightly higher precipitation of 34 mm (1.3 in) over the same number of days but features a slightly higher humidity of 64%. For more details, you can check out Tehran weather in May.
October weather is characterized by cooler temperatures, with a minimum of 1°C (34°F) and an average of 14°C (57°F), contrasting sharply with June, where the temperatures range from a minimum of 10°C (51°F) to an average of 24°C (76°F). In June, the max temperature can reach up to 33°C (92°F), making it significantly warmer than in October, where the maximum peaks at 26°C (79°F). Additionally, October sees more precipitation, with about 31 mm (1.2 in) of rainfall over approximately 6 days, while June has only about 4 mm (0.2 in) of rain across just 1 day. Humidity levels are fairly similar, hovering around 61% in October and 62% in June. For a detailed look at the weather in June, you can check out Tehran weather in June.
The weather in October contrasts significantly with that of July. In October, temperatures range from a chilly minimum of 1°C (34°F) to a comfortable average of 14°C (57°F), peaking at 26°C (79°F). This month also experiences an increase in precipitation, averaging 31 mm (1.2 in) over about 6 days, with a humidity level of 61%. In comparison, July boasts much warmer temperatures, with a minimum of 14°C (58°F), an average of 27°C (81°F), and a maximum of 36°C (96°F). Additionally, July is much drier, with only 6 mm (0.2 in) of precipitation occurring on just 1 day, and a lower humidity level of 52%. For more specific insights, you can check Tehran weather in July.
October and August present contrasting weather conditions. In August, temperatures range from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average of 26°C (78°F). This month experiences virtually no precipitation, with just 1 mm (0.1 in) recorded across the entire month and low humidity at 40%. In stark contrast, October sees cooler temperatures with a minimum of 1°C (34°F) and a maximum of 26°C (79°F), alongside an average of 14°C (57°F). This month also brings more moisture, with 31 mm (1.2 in) of precipitation spread over six days and a higher humidity level of 61%. For a more detailed look at August's weather, you can visit Tehran weather in August.
In comparing the weather between September and October, it's clear that October brings a significant drop in temperatures, with a minimum of 1°C (34°F) compared to September's 10°C (50°F). The average temperature also decreases from 22°C (72°F) in September to 14°C (57°F) in October, while the maximum temperature sees a dip from 33°C (91°F) to 26°C (79°F). Additionally, October experiences more precipitation, with 31 mm (1.2 in) over six days, in stark contrast to September's dry month with only 4 mm (0.2 in) and no days of rain. Humidity levels rise as well, reaching 61% in October compared to September's 45%. For more detailed information about September weather, check Tehran weather in September.
October and November present a notable shift in weather conditions. In October, temperatures range from a pleasant minimum of 1°C (34°F) to a maximum of 26°C (79°F), with an average of 14°C (57°F). The month sees relatively low precipitation at 31 mm (1.2 in) over about 6 days and a humidity level of 61%. In contrast, November experiences cooler temperatures, with a minimum of -8°C (17°F) and a maximum of 20°C (68°F), averaging just 6°C (43°F). The precipitation increases to 47 mm (1.9 in), occurring over 8 days, and humidity rises to 72%. For more details, you can check Tehran weather in November.
October and December showcase a stark contrast in weather conditions. In October, temperatures typically range from a minimum of 1°C (34°F) to a maximum of 26°C (79°F), providing a pleasant average of 14°C (57°F). The month sees about 31 mm (1.2 in) of precipitation over approximately 6 days, with humidity levels around 61%. In contrast, December ushers in a colder climate, with temperatures plummeting to a minimum of -14°C (6°F) and peaking at 13°C (55°F), averaging just 1°C (34°F). This month experiences slightly more precipitation at 35 mm (1.4 in) over 7 days, accompanied by increased humidity at 70%. For those looking for more details on December weather, you can check Tehran weather in December.
As October arrives in Tehran, the city's weather showcases a significant shift from the hotter summer months. With an average temperature settling around 14°C (57°F), the climate becomes much more comfortable, inviting residents and visitors alike to enjoy the outdoors. This month also brings a slight uptick in precipitation, with approximately 31 mm (1.2 in) falling over about 6 days, hinting at the transition towards the cooler, wetter seasons ahead. The humidity levels hover around 61%, making the crisp autumn air feel refreshing. Overall, October is a delightful interlude, contrasting sharply with the sweltering heat of the preceding months and offering a glimpse of the tranquil beauty that characterizes Tehran as it shifts toward winter. For more detailed insights, visit Tehran Climate.