Last updated: August 21, 2025
August in Tehran, Iran offers a warm and dry climate, characterized by maximum temperatures reaching 35°C (95°F) and an average of 26°C (78°F). The nights bring a cooler respite, with temperatures dropping to a minimum of 15°C (59°F). The city experiences almost no rainfall, accumulating just 1 mm (0.1 in) over the month, and humidity levels hover around 40%, contributing to the dry heat. This weather presents a vibrant backdrop for both locals and travelers, making August an ideal time to explore the bustling streets and rich culture of Tehran.
In August, Tehran experiences its warmest days of the year, with temperatures soaring to a maximum of 35°C (95°F) and an average of 26°C (78°F). This month marks a notable shift from the milder conditions of spring, where cool evenings often usher in refreshing nights. With minimum temperatures around 15°C (59°F), the contrast to the chill of winter is stark, highlighting the city's transition to a hot summer climate. As the month progresses, the city's vibrant energy is reflected not just in the bustling streets, but also in the soaring temperatures, creating a lively atmosphere perfect for enjoying evening outings and exploring local culture. This seasonal warmth underscores Tehran's dynamic climate, where summer reigns until autumn begins to hint at its arrival.
In August, Tehran experiences a significant drop in precipitation, with a mere 1 mm (0.1 in) recorded, marking it as one of the driest months of the year. This stark contrast to the preceding months, where rainfall peaked at 70 mm (2.8 in) in April, highlights the region's trend towards increasing aridity as summer progresses. Remarkably, August recorded 0 days of precipitation, reflecting a typical seasonal pattern of limited rainfall during this time, which aligns with July's similarly sparse wet conditions. As the city transitions into the fall, residents anticipate a gradual increase in rainfall, creating a rhythm shaped by Tehran's distinct climatic shifts throughout the year.
In Tehran, Iran, the humidity levels exhibit a notable decline as summer peaks; by August, the average humidity drops to a comfortable 40%. This marks a significant decrease from the higher levels experienced in the earlier months of the year—peaking at 70% in January and typically hovering around the mid-60s in the spring. As the city transitions into fall, humidity begins to creep up again, hitting 45% in September, but it remains a welcome relief from the sweltering summer heat. This trend highlights the characteristic dry summers that Tehran experiences, contrasting sharply with the more humid winters, where levels rise again to 72% in November. Overall, August stands out as a dry, pleasant month, making it a perfect time for outdoor activities in the bustling city.
In August, Tehran experiences a very high UV Index of 10, with a burn time of just 15 minutes. This month marks a slight decline from the peak of 13 seen in May, but remains consistently high, reflecting the intense summer sun that characterizes the region. The trend in UV exposure across the summer months indicates that residents and visitors should remain vigilant about sun protection, especially as the UV levels stay elevated from June through September. As the scorching days continue, it's crucial to stay informed and take necessary precautions against UV radiation. For more details, visit Tehran UV Index.
UV Risk Categories
In August, Tehran basks in the radiant glow of the summer sun, enjoying 377 hours of sunlight, a slight dip from the peak of 394 hours in July. This trend of abundant sunshine is part of a broader summer narrative, where the city experiences a steady increase in daylight hours from 225 hours in January to a vibrant 393 hours in June. As the seasons transition into autumn, the sunlight gradually wanes, with September bringing 342 hours, yet August remains a golden month, offering a rich tapestry of sun-drenched days perfect for outdoor exploration and cultural celebrations. With the encroaching cooler months, the fading sun serves as a reminder of summer's lingering warmth before retreating into the shorter, cloudier days of late autumn.
In Tehran, August shines with a noteworthy 88% chance of sunny weather, making it one of the most favorable months for sunshine right before the year transitions into autumn. Following a hot July with an impressive 87% sunny probability, August continues this trend, ensuring plenty of bright and cheerful days. As the summer progresses, June leads with a peak 94%, and while sunshine levels begin to dip in September, the city enjoys a remarkable 99% chance of clear skies to kick off the fall. This pattern reflects a summer rich in sunlight, making August a delightful time to bask in the warmth of Tehran's sunny disposition.
In Tehran, Iran, the daylight duration follows a captivating seasonal rhythm that mirrors the changing climate. Beginning in the new year, January and February offer around 10 hours of daylight, casting a brief glow on the winter months. As spring unfolds in March, the hours gradually increase to 11, welcoming longer days. April shakes off the chill with 13 hours of sunlight, peaking in May and June at an impressive 14 hours—the height of summer's embrace. This generous availability of daylight persists through July, before tapering off in August to 13 hours. The transition into autumn sees a gradual decline, with September dropping to 12 hours and October and November diminishing to 11 and 10 hours respectively. By December, the city experiences shorter daylight, with just 9 hours, signaling the close of the year in a tranquil, dimmed light.
In Tehran during August, the average wind speed gently settles at 1.9 m/s (4 mph), mirroring the serenity of late summer. This slight dip from the higher breezes of June and July—when winds reached 2.2 m/s (5 mph)—creates a calm yet refreshing atmosphere as the city transitions towards autumn. Notably, the wind picks up again in September to 2.1 m/s (5 mph), heralding the arrival of cooler months. Throughout the year, winds are generally mild, predominantly oscillating between 1.5 and 2.2 m/s, reflecting Tehran's characteristic climatic stability. This pattern not only shapes the city's weather but also contributes to its distinct seasonal charm, making every breeze feel like a whisper of change.
Weather in Tehran varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Tehran, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January showcase starkly contrasting weather patterns. In August, temperatures range from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), accompanied by low humidity at 40% and virtually no precipitation. In contrast, January experiences much colder conditions, with temperatures ranging from -16°C (3°F) to a maximum of 12°C (53°F). This month sees a significant increase in precipitation at 39 mm (1.5 in) over six days, coupled with higher humidity levels at 70%. For more details on January's climate, you can visit Tehran weather in January.
August and February present stark contrasts in weather. August boasts warm temperatures, with a minimum of 15°C (59°F), an average of 26°C (78°F), and a maximum of 35°C (95°F), while enjoying very low precipitation of just 1 mm (0.1 in) across a dry month. This results in a comfortable humidity level of 40%. In contrast, February brings biting cold, with temperatures plunging to a minimum of -23°C (-9°F), an average of 0°C (32°F), and a maximum of 11°C (52°F). The month is quite wet, accumulating 66 mm (2.6 in) of precipitation over 9 days, alongside higher humidity at 66%. For more detailed insights, check Tehran weather in February.
When comparing the weather in August and March, a stark contrast emerges. August is characterized by warmer temperatures, with a minimum of 15°C (59°F) and an average of 26°C (78°F), peaking at a scorching 35°C (95°F). In this month, the region experiences very little precipitation, averaging just 1 mm (0.1 in) and typically having no rainy days, accompanied by a low humidity level of 40%.
In contrast, March presents a cooler climate, with temperatures ranging from a minimum of -8°C (17°F) to an average of 5°C (42°F) and a maximum of 21°C (70°F). This month is significantly wetter, with total precipitation reaching 58 mm (2.3 in) over approximately 10 rainy days, and the humidity level is notably higher at 68%. For a deeper understanding of the weather conditions in March, you can visit Tehran weather in March.
August and April present stark contrasts in weather patterns. In August, temperatures can soar to a maximum of 35°C (95°F), with an average of 26°C (78°F) and very low precipitation, totaling just 1 mm over the month. The humidity is relatively moderate at 40%, making the summer heat more bearable. In contrast, April sees significantly cooler temperatures, with highs reaching only 25°C (77°F) and a much lower average of 11°C (53°F). This month is characterized by frequent rain, accumulating to 70 mm (2.8 in) over 11 days, along with higher humidity levels at 62%. For more details on the April weather in Tehran, visit Tehran weather in April.
When comparing the weather in August and May, there are notable differences in temperature and precipitation. August typically experiences warmer conditions, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), while May's temperatures are more moderate, averaging between 4°C (40°F) and 30°C (86°F). Additionally, August boasts significantly lower humidity at 40% and virtually no precipitation, contrasting sharply with May, which sees an average rainfall of 34 mm (1.3 in) over about 6 days and higher humidity levels at 64%. For more detailed insights, you can check Tehran weather in May.
In comparing the weather of August and June, August tends to be warmer and drier. The average temperature in August reaches a pleasant 26°C (78°F), with highs peaking at 35°C (95°F), while June has a slightly lower average of 24°C (76°F) and maximums of 33°C (92°F). Notably, humidity levels are also different; August is less humid at 40%, compared to June's 62%, which contributes to a more comfortable feel during the hotter days. Additionally, August boasts virtually no precipitation, with only 1 mm recorded and no rainy days, in contrast to June’s 4 mm and one day of rain. For more detailed information, you can explore Tehran weather in June.
In comparison to July, August experiences slightly warmer temperatures, with minimums of 15°C (59°F) and maximums reaching 35°C (95°F), while July has minimums of 14°C (58°F) and maximums of 36°C (96°F). The average temperature in July is marginally higher at 27°C (81°F) compared to August's 26°C (78°F). Furthermore, August boasts remarkably lower precipitation, with only 1 mm (0.1 in) and no rainy days, in contrast to July's 6 mm (0.2 in) and a single rainy day. Humidity levels also decrease in August to 40%, down from July's 52%. For more detailed weather information in July, visit Tehran weather in July.
August typically boasts warmer temperatures, with a minimum of 15°C and an average high reaching up to 35°C, making it a hot month. In contrast, September sees a slight drop in temperature, with lows around 10°C and an average of 22°C, offering a more comfortable climate. Humidity levels also rise in September to 45% compared to August's 40%, and while both months experience minimal precipitation, September has a bit more, with 4 mm recorded. For more detailed weather information, you can check Tehran weather in September.
August and October present starkly different weather conditions. In August, temperatures soar, with a minimum of 15°C (59°F), an average of 26°C (78°F), and a maximum that reaches a sweltering 35°C (95°F). The month is characterized by low humidity at 40% and virtually no precipitation, making it a dry and hot period. In contrast, October experiences a significant drop in temperature, with a minimum of 1°C (34°F), an average of 14°C (57°F), and a maximum of 26°C (79°F). This month is not only cooler but also considerably wetter, with 31 mm (1.2 in) of rainfall spread over 6 days and increased humidity at 61%. For a detailed look at the weather trends in October, visit Tehran weather in October.
August and November showcase a stark contrast in weather conditions. In August, temperatures are warm, ranging from a minimum of 15°C (59°F) to a maximum of 35°C (95°F), with an average of 26°C (78°F). The month is dry, experiencing no precipitation and low humidity at 40%. In contrast, November brings cooler temperatures, with averages dropping to 6°C (43°F) and maximums reaching only 20°C (68°F). This month also sees significant rainfall, amounting to 47 mm (1.9 in) over 8 days, alongside a higher humidity level of 72%. For more detailed information on the November weather in Tehran, refer to Tehran weather in November.
August and December present starkly contrasting weather conditions. In August, temperatures range from a mild 15°C (59°F) to a sweltering 35°C (95°F), characterized by low humidity at 40% and virtually no rainfall. In sharp contrast, December experiences frigid temperatures, with averages hovering around 1°C (34°F) and a maximum of only 13°C (55°F). The month is significantly wetter, with 35 mm (1.4 in) of precipitation spread over 7 days, accompanied by higher humidity levels at 70%. For a detailed look at December weather in Tehran, visit Tehran weather in December.
In August, Tehran experiences its warmest weather of the year, with temperatures often soaring to a maximum of 35°C (95°F) and an average of 26°C (78°F). This month stands out not only for its heat but also for the remarkable lack of rainfall, as it typically sees no precipitation at all, resulting in a dry and comfortable atmosphere with humidity levels around 40%. Unlike the cooler months of the year, August offers a vibrant summer climate perfect for exploring the city's outdoor attractions. To further understand the weather patterns throughout the year, visit Tehran Climate.