Last updated: August 27, 2025
Experience the vibrant September weather of Izmir, Turkey, where the summer heat lingers just a bit longer. With maximum temperatures soaring up to 37°C (99°F) and a pleasant average of 24°C (75°F), it's the perfect time to enjoy the city's outdoor charm. The month sees just 12 mm (0.5 in) of precipitation over a mere one day, allowing residents and visitors alike to bask in the sunshine. The 56% humidity adds a touch of warmth, making it ideal for exploring Izmir’s beautiful coastline and rich cultural sites. Embrace the late summer allure of this stunning destination!
In September, Izmir begins to transition from the sweltering summer heat, offering a more comfortable climate with average temperatures around 24°C (75°F). The minimum temperature drops to a pleasant 10°C (50°F), while the maximum hovers at 37°C (99°F), encapsulating the late summer warmth. This month often showcases clear skies and sunny days, making it an ideal time for outdoor activities and exploration. As the city prepares for the cooler months ahead, September strikes a perfect balance, allowing visitors to enjoy the lingering warmth while hinting at the refreshing changes that October will bring.
In September, Izmir experiences a notable shift in precipitation patterns as summer fades into autumn. Although the month sees a modest rainfall of 12 mm (0.5 in), it is highlighted by just one day of precipitation, reflecting the dry conditions that characterize the tail end of summer. This marks a gradual transition from the parched heat of July and August, where rainfall was nearly nonexistent, with only 5 mm (0.2 in) and 4 mm (0.2 in) respectively. Looking ahead, precipitation starts to increase again in October, paving the way for a wetter fall season. Overall, September serves as a gentle reminder of the shifting seasons, offering a brief respite before autumn showers recommence.
September in Izmir, Turkey, marks the transition from the summer heat to the more temperate autumn months, with humidity settling at a comfortable 56%. This slight increase from August's 49% indicates the city's gradual return to higher moisture levels as the seasons change. Overall, humidity in Izmir tends to peak during the winter months, with January and December recording the highest levels at 84% and 85%, respectively. Conversely, July and August experience a significant drop, featuring the year’s lowest humidity levels at 57% and 49%. As September arrives, residents can enjoy a respite from the intense summer mugginess, making it an ideal time to savor the city's beautiful coastal climate.
In September, Izmir experiences a slight decrease in the UV Index, dropping to 8 but maintaining a very high exposure category. This suggests that sun protection remains crucial as you could still burn in just 15 minutes. As summer winds down, the UV levels are still notably elevated, echoing the preceding months of July and August, where the index peaked at 10. This trend highlights the importance of being cautious under the sun, even as the season transitions. For more detailed information on sun safety, visit Izmir UV Index.
UV Risk Categories
As summer gracefully transitions to autumn, September in Izmir, Turkey, continues to bask in plentiful sunshine, offering an impressive 349 hours of glorious daylight. This marks a slight dip from the intense July peak of 427 hours, yet maintains a vibrant brightness that invites both locals and travelers to relish in outdoor activities. The sunny days reflect a comforting warmth that characterizes the late summer atmosphere, bridging the gap between the hotter months and the cooler autumn breezes. As the city prepares for the gradual cool down, September stands out as a lovely month where the sun still generously shines down, allowing for memorable moments under its glow.
As summer transitions to autumn, September in Izmir, Turkey continues to offer a delightful likelihood of sunny weather, boasting an impressive 87% chance of sun. This month showcases a noticeable trend from the intense summer months, where August peaks at 98% sunny days, to a still-abundant sunshine experience that's perfect for outdoor enthusiasts. While the days gradually shorten and temperatures cool, the warm embrace of September's sun remains inviting, making it a fantastic time to explore this beautiful coastal city before autumn takes full hold.
As summer fades into autumn, September in Izmir, Turkey serves as a gentle transition with a daylight duration of 12 hours. This marks a slight decrease from the strong summer months of June, July, and August, where the days stretched to a consistent 14 hours. The month begins to hint at the upcoming shorter days of fall, following a gradual increase from the winter's 9-hour daylight in January. Visitors and locals alike can enjoy the warm early autumn sun, making September an ideal time to appreciate the beautiful landscapes and vibrant culture of this coastal city before the shorter days of October settle in.
As September arrives in Izmir, the breeze remains gentle and inviting, with an average wind speed of 2.9 m/s (6 mph), mirroring the conditions of the previous month. This slight consistency in wind speeds, observed from June through September, hints at a subtle transition, where summer's warmth lingers while preparing for the cooler months ahead. Notably, July marks the pinnacle of wind activity with an average of 3.2 m/s (7 mph), creating a delightful contrast to the calmness of May and June. As autumn approaches, the winds gradually settle, dropping to 2.4 m/s in October, yet even in decline, they maintain the charming character of Izmir's coastal allure.
Weather in Izmir varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Izmir, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures can soar as high as 37°C (99°F), with an average of 24°C (75°F) and minimal rainfall of just 12 mm (0.5 in) over only one day. The humidity is moderate at 56%, making it feel warm and pleasant. In contrast, January sees a significant drop in temperatures, with highs peaking at 21°C (69°F) and lows plunging to -5°C (23°F). This month is also much wetter, with 145 mm (5.7 in) of precipitation over 11 days and a higher humidity level of 84%, contributing to a much chillier and damp atmosphere. For more detailed information, visit Izmir weather in January.
September and February present strikingly different weather conditions. In September, temperatures are much warmer, ranging from a comfortable 10°C (50°F) at night to a scorching 37°C (99°F) during the day, with average temperatures around 24°C (75°F). The month sees minimal precipitation, totaling only 12 mm (0.5 in) over just one day, and a relatively moderate humidity of 56%. In contrast, February brings cooler temperatures, with nighttime lows plunging to -4°C (26°F) and daytime highs peaking at 20°C (68°F), averaging just 9°C (48°F). February is significantly wetter, with 89 mm (3.5 in) of rain spread across ten days and higher humidity levels of 83%. For more detailed insights, check out Izmir weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a mild 10°C (50°F) at night to an average high of 24°C (75°F), peaking at a sweltering 37°C (99°F) during the day. The month is relatively dry with only 12 mm (0.5 in) of precipitation over just one day, and the humidity sits at a comfortable 56%. In stark contrast, March experiences cooler temperatures, with nighttime lows sinking to -3°C (27°F) and daytime highs averaging around 11°C (51°F), reaching up to 23°C (73°F). This month is much wetter, with 89 mm (3.5 in) of rainfall spread over 11 days and higher humidity at 81%. For more specifics on March weather, check Izmir weather in March.
The weather in September is generally warmer and drier compared to April. With average temperatures reaching 24°C (75°F) and maximums soaring up to 37°C (99°F), September enjoys a more summery climate, featuring only about 12 mm (0.5 in) of precipitation over just one day. In contrast, April experiences cooler temperatures, with an average of 15°C (59°F) and maximums around 30°C (87°F). However, it is much wetter, receiving approximately 58 mm (2.3 in) of rain over seven days, which contributes to a higher humidity level of 75%. For more detailed information about April weather, you can check Izmir weather in April.
When comparing the weather in September and May, notable differences emerge in both temperature and precipitation. September tends to be warmer, with average temperatures around 24°C (75°F) and a maximum reaching up to 37°C (99°F), while May’s average hovers around 20°C (69°F) with highs of 36°C (97°F). Precipitation levels also vary significantly; September experiences minimal rainfall, with only 12 mm (0.5 in) over just one day, in contrast to May, which sees about 42 mm (1.6 in) across six days. Additionally, May has higher humidity at 74%, compared to September's 56%, contributing to a more tropical feel in the early summer month. For more detailed insights, you can explore Izmir weather in May.
In comparing the weather of September and June, we see some notable differences despite their similar average temperatures of 24°C (75°F). In September, the minimum temperature drops slightly to 10°C (50°F), while June starts at a minimum of 12°C (53°F). June experiences significantly more precipitation, with 35 mm (1.4 in) over 8 days, compared to just 12 mm (0.5 in) over only 1 day in September. Additionally, June's humidity level of 67% is higher than September's 56%, contributing to a more humid feel during early summer. For a detailed look at the weather patterns in June, check out Izmir weather in June.
In comparing the weather between September and July, it's clear that July tends to be hotter and more humid. July showcases a minimum temperature of 16°C (62°F) and an average of 27°C (82°F), with maximum temperatures reaching up to 41°C (106°F). This month also experiences slightly less precipitation, with only 5 mm (0.2 in) over one day, maintaining a humidity level of 57%. In contrast, September offers a cooler temperature range, with a minimum of 10°C (50°F) and an average of 24°C (75°F), peaking at 37°C (99°F). While there’s a slight increase in precipitation to 12 mm (0.5 in), it still falls on just one day, accompanied by a humidity level that remains relatively stable at 56%. For more detailed insights, you can check Izmir weather in July.
In comparing the weather between August and September, we notice a shift towards slightly cooler temperatures. While August boasts a minimum temperature of 18°C (65°F) and an average of 28°C (82°F), September's temperatures drop to a minimum of 10°C (50°F) and an average of 24°C (75°F). Additionally, September experiences a maximum temperature of 37°C (99°F), which is lower than August's peak of 39°C (103°F). Precipitation is minimal in both months, with September receiving only 12 mm (0.5 in) over just 1 day, compared to August's 4 mm (0.2 in) across 0 rainy days. Notably, September also has a slightly higher humidity level at 56%, compared to August's 49%. For a more detailed look at August weather patterns, check Izmir weather in August.
In September, the weather is characterized by higher temperatures, with averages around 24°C (75°F) and maximums reaching as high as 37°C (99°F). The month sees relatively low precipitation at just 12 mm (0.5 in) over a single day, along with a moderate humidity level of 56%. In contrast, October brings a significant drop in temperature, with average highs settling around 18°C (65°F) and minimums dipping to 3°C (38°F). Additionally, October experiences a notable increase in rainfall, totaling 59 mm (2.3 in) across five days and a higher humidity of 74%. For more detailed information, you can visit Izmir weather in October.
September features much warmer weather with an average temperature of 24°C (75°F) and highs that can reach up to 37°C (99°F). In contrast, November brings cooler conditions, with average temperatures dropping to 13°C (56°F) and a maximum of 27°C (81°F). Additionally, September sees minimal precipitation, averaging only 12 mm (0.5 in) over just 1 day, while November is considerably wetter, accumulating 79 mm (3.1 in) across 7 days. Humidity is also higher in November at 82%, compared to 56% in September, which contributes to a notably different atmospheric feel. For more details, visit Izmir weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a minimum of 10°C (50°F) to a scorching maximum of 37°C (99°F), with an average of 24°C (75°F). The month is comparatively dry, receiving only 12 mm (0.5 in) of precipitation over just one day, and features a moderate humidity level of 56%. In contrast, December brings much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 20°C (68°F), averaging around 9°C (49°F). The precipitation significantly increases to 125 mm (4.9 in) across 14 days, and humidity levels rise to 85%, making the atmosphere feel much more damp. For more details about December weather conditions, you can visit Izmir weather in December.
As summer gently gives way to autumn, September in Izmir showcases a delightful transition with pleasant temperatures and relatively low precipitation, making it a perfect time for outdoor activities. With maximums often reaching heights of 37°C (99°F) and average temperatures settling around 24°C (75°F), visitors can enjoy warm, sunny days. Unlike the humid summer months, September presents a more comfortable 56% humidity, allowing for leisurely exploration. Only a single day of rain graces this month, ensuring that the bright blue skies remain predominant. For a deeper understanding of how September weather in Izmir compares throughout the year, visit Izmir Climate.