Last updated: August 27, 2025
In Karakoy, Turkey, September showcases a delightful transition from summer to autumn, with maximum temperatures reaching a balmy 33°C (91°F) and an average of 20°C (69°F). The weather remains predominantly pleasant, featuring only a trace of rain at 6 mm (0.2 in) across just one day. Humidity levels hover around a comfortable 42%, making it an ideal time for visitors to explore the vibrant streets and scenic vistas of this historic district. Embrace the warm days and cool evenings as you experience the charm of Karakoy in September.
As September unfolds in Karakoy, Turkey, temperatures begin to shift, marking the transition from summer's warmth to autumn's brisk embrace. With average highs reaching 33°C (91°F) and lows around 3°C (37°F), the month maintains a pleasant warmth while inviting cooler evenings. This blend of sun and chill creates the perfect backdrop for outdoor activities, making it a vibrant time to explore the city. The average temperature rests at a comfortable 20°C (69°F), striking a balance that appeals to both sun-seekers and those longing for milder days as the season changes. As summer's heat lingers in early September, expect a gradual descent into the more temperate days of fall, offering a unique and picturesque experience in this charming port district.
In September, Karakoy experiences a notable shift toward drier conditions, with just 6 mm (0.2 in) of precipitation recorded over a mere single rainy day. This marks a significant contrast to the wetter spring months, where rainfall often exceeds 90 mm and multiple days of precipitation are common. The region's transition into autumn is characterized by a sharp decline from the summer's minimal rain, as July and August yield almost no precipitation at all, highlighting a clear trend of decreasing rainfall as the year progresses into late summer and early fall. While September may signal the onset of a more stable weather pattern, the tangible drop in precipitation foreshadows the wetter months to come, particularly October and December, when the average rainfall once again increases.
In September, humidity in Karakoy, Turkey begins to shift from the sultry summer months, dropping to a refreshing 42%. This marks a noticeable decline from the peak of 37% in August, heralding the onset of autumn. As the year progresses, the overall trend showcases a significant fluctuation in humidity levels, with the winter months of January and February experiencing the highest averages at 89% and 90% respectively. Conversely, the summer months bring a welcomed relief, with July and August recording their lowest levels at 46% and 37%. As September transitions into October, humidity levels creep back up, hinting at the seasonal changes ahead, and the natural rhythm of Karakoy's climate continues to weave an intricate tapestry throughout the year.
As September arrives in Karakoy, Turkey, the UV Index remains at a notably high level of 9, indicating very high exposure potential. This shift from the intense summer months—where the UV Index peaked at 12 in June and July, requiring just 10 minutes for a burn—shows a slight moderation, yet caution is still needed. During September, residents and visitors can expect a burn time of around 15 minutes, making sun protection essential, especially during midday hours. Comparing these trends, it’s clear that summer months demand heightened vigilance, but even as autumn approaches, the UV levels are still significant. For more detailed insights into sun safety, visit Karakoy UV Index.
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As summer gives way to autumn, September in Karakoy, Turkey, offers a delightful transition, with 351 hours of sunshine that reflect the lingering warmth of the season. This month captures the essence of gradual change, showing a slight decline from the vibrant highs of July and August but still slightly brighter than the upcoming October. The trend of increasing sunshine hours from the depths of winter to the sunny peaks of summer draws attention; January starts with a mere 181 hours, steadily climbing to a radiant 427 hours in July. Even as the days grow shorter, September’s sun continues to brighten the charming streets of Karakoy, inviting locals and travelers alike to savor the inviting ambiance before the cooler months set in.
As September rolls into Karakoy, Turkey, the likelihood of basking in sunny weather reaches an impressive 89%, making it one of the sunniest months of the year. Following the blazing days of summer, where July and August enjoy sunny probabilities of 86% and 84% respectively, September offers a delightful transition into autumn while still retaining ample sunshine. This trend showcases a gradual decline from the peak summer months but remains significantly higher than the chillier months ahead, such as October at 75% and November, which drops to 47%. For those seeking warm, sun-kissed days in early fall, September in Karakoy promises a splendid opportunity to soak in the rays before the cooler seasons set in.
As September unfolds in Karakoy, Turkey, daylight begins to gently recede, entering a transitional phase after the summer's vibrant, sun-drenched days. With an average of 12 hours of daylight, this month marks a subtle shift from the peak of summer, where June, July, and August enjoy 14 hours of glorious sunshine. Following the golden glow of summer, September offers a light embrace as days grow shorter, paving the way for the cooler months of autumn. This seasonal ebb, where daylight diminishes gradually towards October's 11 hours, reflects nature's rhythm—each month bringing its unique charm while hinting at the approaching changes of the year.
As September unfolds in Karakoy, Turkey, the gentle caress of the wind at an average speed of 2.0 m/s (5 mph) invites both locals and visitors to savor the transitional beauty of the season. This consistent breeze mirrors the summer's soft whisper, following a peak in June when the winds reached 2.5 m/s (6 mph). With summer's end, September maintains a comfortable balance—far from the lighter gusts of fall, which is only a breath away. Interestingly, the monthly averages indicate a gradual decline from the lively summer breezes, with the year's quietest winds appearing as winter approaches. This transition creates an atmosphere ripe for leisurely strolls along the waterfront, where the invigorating autumn air mingles harmoniously with the nostalgic warmth of the summer sun.
Weather in Karakoy varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Karakoy, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly contrasting weather conditions. In September, temperatures typically range from a mild 3°C (37°F) to a warm 33°C (91°F), with an average of 20°C (69°F) and minimal precipitation of just 6 mm (0.2 in) over one day, resulting in a comfortable humidity level of 42%. In contrast, January experiences much harsher conditions, with temperatures plummeting to a minimum of -23°C (-9°F) and an average of -4°C (24°F), peaking at a relatively mild 9°C (48°F). This month accumulates significantly more precipitation, totaling 69 mm (2.7 in) over nine days, leading to a high humidity of 89%. For a more detailed look at January weather, click here: Karakoy weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a mild 3°C (37°F) at night to a warm 33°C (91°F) during the day, accompanied by low humidity at around 42% and minimal precipitation of just 6 mm (0.2 in) over one day. This creates a pleasant, late-summer atmosphere ideal for outdoor activities. In contrast, February is characterized by frigid temperatures, with a chilling minimum of -25°C (-13°F) and an average of -2°C (28°F). This month experiences significantly higher precipitation at 58 mm (2.3 in) over nine days, along with a high humidity level of 90%, giving it a distinctly wintry feel. For more detailed information on February weather, visit Karakoy weather in February.
September and March present stark contrasts in weather conditions. In September, temperatures range from a comfortable minimum of 3°C (37°F) to a warm average of 20°C (69°F), peaking at 33°C (91°F), with just a minimal 6 mm (0.2 in) of precipitation over only one day. This month enjoys relatively low humidity at 42%, making it quite pleasant. In contrast, March experiences much colder temperatures, with a chilling minimum of -17°C (2°F) and an average of only 2°C (36°F), while the maximum reaches a mild 19°C (67°F). Precipitation is notably higher in March, accumulating to 126 mm (5.0 in) over 15 days, coupled with high humidity at 86%. For more detailed information, you can check out Karakoy weather in March.
In September, temperatures can range from a cool 3°C (37°F) to a warm 33°C (91°F), with an average of 20°C (69°F). The month is generally dry, featuring only 6 mm (0.2 in) of precipitation over just 1 day and a low humidity of 42%. In contrast, April experiences much cooler temperatures, with a minimum of -6°C (22°F) and a maximum of 23°C (73°F), averaging at 9°C (48°F). This month is characterized by significantly higher precipitation at 94 mm (3.7 in) spread over 15 days, along with elevated humidity levels of 77%. Overall, September tends to be warmer and drier than the cooler, wetter April, making each month distinct in its weather patterns. For more details, you can check Karakoy weather in April.
In comparing September and May weather, September typically boasts much warmer temperatures, with an average of 20°C (69°F) and a maximum of 33°C (91°F), while May's average temperature hovers around a cooler 14°C (57°F), peaking at 31°C (88°F). Additionally, September experiences minimal precipitation of only 6 mm (0.2 in) over just one day, resulting in lower humidity levels at 42%. In contrast, May is considerably wetter, with a significant 93 mm (3.7 in) of rainfall over 13 days, contributing to a higher humidity level of 72%. For a detailed look at what to expect in May, check out Karakoy weather in May.
September weather features a broader temperature range, with minimums dipping to 3°C (37°F) and maximums reaching up to 33°C (91°F), while the average temperature remains consistent at 20°C (69°F). Precipitation is minimal, with only 6 mm (0.2 in) over just one day, leading to a relatively dry month with a humidity level of 42%. In contrast, June shows a slightly warmer temperature profile, with minimums at 6°C (42°F) and maximums peaking at 34°C (94°F), yet it also maintains the same average of 20°C (69°F). June experiences more rainfall, totaling 14 mm (0.5 in) over four days, resulting in higher humidity levels at 57%. For a detailed look at the June weather, you can check Karakoy weather in June.
September tends to be milder compared to the heat of July, with average temperatures around 20°C (69°F) versus July's warmer 25°C (76°F). While July experiences the highest maximum temperature of 37°C (99°F), September sees a peak of 33°C (91°F) along with a cooler minimum temperature of 3°C (37°F). Both months have similar low precipitation levels, with September receiving 6 mm (0.2 in) over one day and July recording 4 mm (0.2 in) without any rainy days. Additionally, July has a slightly higher humidity level at 46% compared to 42% in September. For more details about the weather in July, visit Karakoy weather in July.
In comparing the weather between August and September, we see a notable shift in temperatures. September experiences a broader range, with a minimum of 3°C (37°F) and a maximum of 33°C (91°F), averaging around 20°C (69°F). In contrast, August has a warmer profile, with minimum temperatures at 9°C (49°F) and maximums reaching 36°C (97°F), leading to a higher average of 24°C (76°F). Both months see minimal precipitation, with September recording 6 mm (0.2 in) over just one day, slightly more than August's 5 mm (0.2 in) on the same number of days. Humidity levels are also relatively comparable, with September at 42% and August a touch lower at 37%. For a more detailed look at August conditions, you can visit Karakoy weather in August.
September typically enjoys warmer temperatures, with average highs reaching 33°C (91°F) and minimal precipitation at just 6 mm (0.2 in) over the course of only one day. In contrast, October marks a significant drop in temperatures, with average highs around 27°C (81°F) and lows dipping down to -2°C (28°F). Additionally, October brings increased rainfall, totaling 39 mm (1.5 in) across four days, and higher humidity levels at 63%. For more detailed information, you can check Karakoy weather in October.
September and November present a stark contrast in weather conditions. In September, temperatures range from a pleasant minimum of 3°C (37°F) to a maximum of 33°C (91°F), with an average of 20°C (69°F) and only minimal precipitation of 6 mm (0.2 in) over a single day, resulting in relatively low humidity at 42%. In sharp contrast, November sees much colder temperatures, dipping as low as -9°C (16°F), with an average of just 5°C (41°F) and a maximum of 20°C (69°F). This month experiences significantly more precipitation, totaling 56 mm (2.2 in) over the course of 7 days, leading to higher humidity levels at 79%. For more insights on November weather, check out Karakoy weather in November.
September weather is markedly warmer and drier compared to December. With average temperatures around 20°C (69°F) and maximums reaching up to 33°C (91°F), September offers a pleasant climate with only minimal precipitation of 6 mm over just one day. In contrast, December brings much colder conditions, with average temperatures dropping to 0°C (32°F) and lows plunging to -21°C (-5°F). This winter month sees a significant increase in precipitation, totaling 97 mm spread across 12 days, and the humidity rises dramatically to 88%. For more detailed information, you can check Karakoy weather in December.
As September unfolds in Karakoy, the weather shows a delightful blend of warmth and mildness, setting it apart from the hotter summer months. With average temperatures reaching a comfortable 20°C (69°F) and rare bursts of warmth peaking at 33°C (91°F), this month offers an inviting atmosphere for both locals and visitors alike. The low humidity at 42% contributes to a pleasant experience, ensuring that outdoor activities can be enjoyed with ease. With only 1 day of light precipitation, the chances of rain are slim, allowing you to relish the beautiful transition into autumn. For a deeper dive into the nuances of the region's weather patterns, check out Karakoy Climate.