Last updated: August 27, 2025
September in Mersin, Turkey offers a delightful blend of warmth and mildness, with average temperatures hovering around 28°C (82°F). Visitors can expect maximum daytime highs reaching a scorching 38°C (101°F), while nights stay comfortably warm at a minimum of 22°C (72°F). The month is relatively dry, featuring only 9 mm (0.3 in) of rainfall over just two days, complemented by a humidity level of 47%. This combination makes September a perfect time to explore the beautiful coastal landscapes and vibrant local culture of Mersin.
As September rolls into Mersin, Turkey, the coastal city experiences a delightful shift in temperatures, signaling the end of summer. With minimums hovering around 22°C (72°F) and averages reaching a warm 28°C (82°F), the weather remains pleasantly inviting. Daytime highs can peak at a sizzling 38°C (101°F), making it one of the warmest months of the year. This transitional period provides a unique opportunity for outdoor activities and beach outings before the cooler autumn temperatures settle in, underscoring the region's appeal as a summer destination. As the heat begins to wane, the warmth of Mersin in September promises a beautiful blend of summer's last hurrah.
In September, Mersin experiences a notable transition in weather as summer begins to fade. The average precipitation drops to just 9 mm (0.3 in), with rainfall occurring on only 2 days, marking one of the drier months of the year. This decrease in precipitation follows the trend observed throughout the summer months, where July and August also recorded minimal rainfall. As the city welcomes the onset of autumn, the gradual resurgence of rain promises to revitalize the landscape, setting the stage for the wetter months ahead. Notably, the stark contrast with January's substantial 131 mm (5.1 in) emphasizes September's role as a bridge between dry heat and the impending rainy season.
In September, Mersin, Turkey experiences a notable shift in humidity, dropping to 47% as the summer heat begins to wane. This marks a continuation of the downward trend seen from the peak of 81% in January down to a low of 41% in August. The drop in humidity not only signals the onset of autumn but also contributes to a more comfortable atmosphere for residents and visitors alike. As the month progresses, humidity levels gradually rise again, leading up to the more saturated conditions of October at 64%. This seasonal fluctuation highlights Mersin's dynamic climate, where humid summer days transition into the milder, breezier fall months.
As September rolls into Mersin, Turkey, the UV Index remains notably high at 8, categorizing the exposure as very high with a burn time of just 15 minutes. This marks a slight decrease from the intense 11 seen in June, indicating that while summer is waning, the sun still poses a significant risk. Historically, this month serves as a transitional phase, with UV levels tapering off from peak summer values but still warranting caution for outdoor activities. As the season shifts towards autumn, vigilance against sun exposure is essential to avoid sunburn. For more detailed insights on UV levels throughout the year, check out Mersin UV Index.
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As summer gently gives way to autumn, September in Mersin, Turkey, continues to bask in a generous 351 hours of sunshine—a reminder of the lingering warmth before winter sets in. This month reflects a notable transition, as daylight hours begin to wane from the peak of 420 hours in July, yet remain significantly higher than the earlier months of the year. The trend showcases a steady increase in sunlight from January's modest 210 hours to the summer's peak, presenting Mersin as an inviting destination for those seeking to soak in the sun. As the days grow shorter, September still offers ample opportunities for outdoor adventures, with the sun casting its golden glow on the stunning Mediterranean coastline, making it an idyllic time for both relaxation and exploration.
As summer transitions to autumn, September in Mersin, Turkey, boasts an impressive 89% chance of sunny weather, making it one of the sunniest months of the year. This trend reflects a gradual increase in sunshine from the earlier months, peaking in August with an 87% likelihood. The months leading up to September show a consistent rise in sunny days, especially from May onwards, where the probability elevates from 80% to nearly 90%. With the pleasant warm weather, September not only invites beachgoers but also allows for outdoor exploration, making it an ideal time to enjoy the vibrant coastal beauty of Mersin before the cooler months arrive.
As September ushers in the transition from the long, sun-drenched days of summer, Mersin experiences a daylight duration of 12 hours, striking a balance between the vibrant warmth of the preceding months and the cooler embrace of autumn. This month marks a comforting decline from the peak summer sunlight, which reached 14 hours in June through August, gradually tapering off to 11 hours by October. The trend showcases Mersin's delightful seasonal rhythm, as daylight slowly diminishes after the summer solstice, inviting the serene charm of fall while still offering ample time to enjoy the outdoors. With each day slightly shorter than the last, Mersin's September serves as a gentle reminder of the shifting seasons, blending the last whispers of summer brightness with the promise of autumnal coziness.
As summer wanes and September unfolds in Mersin, Turkey, the average wind speed gently drops to 2.5 m/s (6 mph), marking a subtle transition into autumn. This month tends to be the calm before the more blustery seasons ahead, with winds softening from the summer months. Overall, a trend emerges as we look across the year; starting from the winter's brisk 3.9 m/s in January, there's a gradual ebb in wind strength through late spring and summer, leading into early autumn's tranquil breezes. Interestingly, the resurgence in wind speed in December hints at the lively shifts that winter brings, enveloping Mersin in a different character as the year comes to a close. Thus, September serves as a serene pause, allowing the beauty of the coastal landscape to shine without the distraction of strong winds.
Weather in Mersin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mersin, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present strikingly different weather conditions. In September, temperatures are warm, ranging from a minimum of 22°C (72°F) to a maximum of 38°C (101°F), with an average of 28°C (82°F). The month sees minimal precipitation, totaling just 9 mm (0.3 in) over 2 days, and humidity levels sit at 47%. In contrast, January experiences much cooler temperatures, with a minimum of 5°C (42°F) and an average of 12°C (54°F) peaking at 21°C (70°F). This winter month also brings significant rainfall, accumulating to 131 mm (5.1 in) across 9 days and higher humidity at 79%. For a detailed look at the January weather, visit Mersin weather in January.
The weather in September and February contrasts significantly. September boasts warm temperatures, with a minimum of 22°C (72°F) and a maximum reaching up to 38°C (101°F), accompanied by relatively low precipitation of just 9 mm (0.3 in) over 2 days and 47% humidity. In stark contrast, February sees much cooler temperatures, with a minimum of 4°C (39°F) and an average of only 13°C (56°F), while experiencing higher precipitation levels of 61 mm (2.4 in) across 6 days and increased humidity at 80%. For a detailed look at February weather in Mersin, you can check Mersin weather in February.
September and March present contrasting weather patterns. In September, temperatures are warm, with minimums of 22°C (72°F) and maximums soaring to 38°C (101°F), making it part of the summer season. The month experiences low precipitation, averaging only 9 mm (0.3 in) over just two days, and relative humidity sits around 47%. In stark contrast, March has much cooler temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 23°C (74°F), indicating the shift towards spring. This month also sees significantly higher precipitation, accumulating 69 mm (2.7 in) over nine days, along with a higher humidity level of 76%. For more detailed information, check out Mersin weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be much warmer, with average temperatures hovering around 28°C (82°F) and highs reaching up to 38°C (101°F), making it feel quite summer-like. In contrast, April experiences a cooler climate, with average temperatures of 18°C (65°F) and maximums only reaching 30°C (86°F). Additionally, while September is relatively dry with just 9 mm (0.3 in) of precipitation over 2 days, April sees significantly more rainfall, totaling 40 mm (1.6 in) spread across 6 days. The humidity also plays a role, as April is more humid at 66%, compared to September's 47%. For a detailed look at April's weather patterns, you can check Mersin weather in April.
September and May exhibit distinct weather patterns that cater to different preferences. In September, temperatures are generally hotter, with a minimum of 22°C (72°F) and an average of 28°C (82°F), peaking at a scorching 38°C (101°F). Despite the warmth, this month sees relatively low precipitation, averaging just 9 mm (0.3 in) over 2 days and a humidity level of 47%. In contrast, May presents milder weather, with minimum temperatures around 16°C (60°F) and an average of 22°C (72°F), and a maximum of 33°C (92°F). However, it experiences more rainfall, with a total of 19 mm (0.8 in) over 5 rainy days, and higher humidity at 69%. For a more detailed look at May's atmosphere, check out Mersin weather in May.
In comparing the weather of September and June, September is notably warmer with average temperatures reaching 28°C (82°F) and highs soaring up to 38°C (101°F). In contrast, June sees a cooler climate, averaging 25°C (77°F) with a maximum of 33°C (92°F). While both months experience a similar number of rainy days, September has slightly less precipitation at 9 mm (0.3 in) compared to June’s 11 mm (0.4 in). Additionally, humidity levels are lower in September at 47%, while June presents a more humid experience with 60%. For more detailed information on June's weather, you can check Mersin weather in June.
In comparing the weather between September and July, we see mild variations in temperature and precipitation. September boasts a slightly broader temperature range, with minimums of 22°C (72°F) and maximums reaching up to 38°C (101°F), while July remains cooler with its maximum at 34°C (93°F). Both months exhibit low precipitation, with September seeing 9 mm over 2 days and July having only 7 mm without any rain days. Humidity remains relatively stable, with September at 47% and July slightly higher at 48%. For more in-depth details about July weather, you can refer to Mersin weather in July.
In September, temperatures are slightly cooler than in August, with a minimum of 22°C (72°F) compared to August's 25°C (77°F) and a maximum reaching 38°C (101°F), which exceeds August's high of 35°C (96°F). Both months experience low precipitation, with September recording 9 mm (0.3 in) over 2 days and August totaling 10 mm (0.4 in) also over 2 days. Interestingly, September has higher humidity at 47%, while August sits at a more comfortable 41%. For more detailed information on August conditions, check out Mersin weather in August.
September typically boasts warmer temperatures, with minimums around 22°C (72°F) and highs reaching up to 38°C (101°F), while October experiences a noticeable cool-down, with minimum temperatures dropping to 16°C (62°F) and maximums peaking at 32°C (91°F). The average temperature in September is about 28°C (82°F), compared to October's average of 25°C (77°F). Although both months share similar total precipitation days (2), October sees a slight increase in overall rainfall to 12 mm (0.5 in), contributing to higher humidity at 64% compared to September's 47%. For more detailed information on October weather in Mersin, check out Mersin weather in October.
September and November present contrasting weather patterns. In September, temperatures are significantly warmer, with a minimum of 22°C (72°F) and a maximum reaching up to 38°C (101°F), averaging around 28°C (82°F). The month experiences a low level of precipitation at just 9 mm (0.3 in) over 2 days, and the humidity sits at a moderate 47%. In stark contrast, November sees much cooler temperatures, with a minimum of 11°C (53°F) and an average of 20°C (67°F), peaking at 28°C (82°F). Precipitation increases to 56 mm (2.2 in) over 4 days, accompanied by higher humidity levels at 74%. For more detailed information about November's weather, you can check Mersin weather in November.
The weather in September is characterized by much warmer temperatures, with a minimum of 22°C (72°F) and an average of 28°C (82°F), occasionally reaching as high as 38°C (101°F). In contrast, December experiences a significant drop in temperatures, with averages around 15°C (59°F) and maximums of 22°C (72°F), making it much cooler overall. Additionally, December sees a substantial increase in precipitation, totaling 159 mm (6.2 in) over about 10 days, compared to just 9 mm (0.3 in) over 2 days in September. The humidity also rises significantly from 47% in September to 81% in December, contributing to a much damp and fresh atmosphere during the latter month. For more details about the December weather, check out Mersin weather in December.
As summer gracefully transitions to autumn, September in Mersin offers a delightful blend of warmth and mildness. With average temperatures hovering around a comfortable 28°C (82°F), the heat of the preceding months begins to wane, making outdoor activities more enjoyable. Precipitation remains minimal, a mere 9 mm over just a couple of days, ensuring that the air retains a pleasantly dry feel, complemented by a moderate humidity of 47%. This shift marks September as a sweet spot for visitors, striking a perfect balance between the lingering summer sun and the hints of cooler days ahead. For more insights on how Mersin’s weather evolves throughout the year, check out Mersin Climate.