Last updated: August 27, 2025
December in Sisli, Turkey, presents a cool and wet climate, where temperatures typically range from a minimum of 1°C (34°F) to a maximum of 18°C (64°F), with an average of 10°C (50°F). During this month, residents and visitors can expect significant precipitation, totaling approximately 108 mm (4.2 in) over about 15 days, leading to a humidity level of around 85%. The combination of cooler temperatures and frequent rain creates a cozy atmosphere, perfect for enjoying the city's indoor attractions or festive seasonal events.
As December sweeps into Sisli, Turkey, temperatures begin to dip, marking the transition into winter. With minimums averaging around 1°C (34°F) and averages settling at 10°C (50°F), the chill of the season becomes palpable. The maximum temperatures reach a mild 18°C (64°F), providing occasional relief amidst the cooler days. Compared to the preceding months, a noticeable decline in warmth is evident, as the city shifts from the comfortable fall temperatures of November to a more winter-like climate. This month's cooler embrace encourages cozy gatherings and festive cheer, as the streets of Sisli transform into a vibrant winter wonderland.
December in Sisli, Turkey, marks a notable increase in precipitation, with 108 mm (4.2 in) of rainfall spread across 15 days. This trend signifies a shift towards the wetter months of winter, contrasting sharply with the drier summer, where August sees a mere 18 mm (0.7 in). As autumn transitions into winter, the city experiences a rise in both the quantity and frequency of rain, reflecting an increase from November’s 63 mm (2.5 in) over 10 days. The rain serves as a vital resource for the region, replenishing local ecosystems and preparing the ground for the upcoming warmth of spring. This seasonal pattern highlights Sisli's unique climate dynamics, where the end of the year brings more robust rainfall, setting the stage for renewal and growth.
In Sisli, Turkey, December sees a notable uptick in humidity, reaching 85%, which is the highest level since the start of the year. As the colder months approach, humidity gradually increases from a low of 55% in August and dips to 63% in July. This rise reflects a shift in seasonal patterns, with November already experiencing a significant 82% humidity. The trend suggests a return to more humid conditions as winter sets in, contrasting sharply with the drier summer months. Understanding these fluctuations can be crucial for residents and visitors alike, as they impact comfort and outdoor activities during the winter season.
As winter sets in, December in Sisli, Turkey brings a significant dip in the UV Index, clocking in at a low 2. This indicates a shift from the previous months of high and very high exposure, where sunburn risks were markedly greater. With a recommended burn time of 45 minutes, outdoor activities become more lenient in terms of sun protection. In contrast to the peak summer months, where the UV Index soared to 10 in June, December offers a welcome reprieve for those looking to bask in the sunlight. This trend demonstrates the seasonal fluctuations in UV radiation, reminding us that even the winter sun can necessitate caution. For more detailed insights, check out Sisli UV Index.
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December in Sisli, Turkey offers a delightful respite as the year winds down, with 213 hours of sunshine bathing the city in a gentle glow. While this marks a decrease from the sun-drenched months of summer, where hours peaked at 428 in July, December's brightness still contrasts sharply with the earlier winter months. As the sun begins to set earlier in the year, the gradual decline in daylight hours from 401 in May highlights the transition into winter. Nonetheless, Sisli's December sun serves as a cheerful reminder that even in the heart of winter, warmth and light are still part of the landscape, contrasting beautifully with the chilly air.
As December ushers in winter in Sisli, Turkey, the likelihood of sunny weather stands at 33%, reflecting a subtle dip from the more sun-kissed months of August and July, which boast probabilities as high as 82% and 79%, respectively. The trend showcases a gradual decline in sunshine hours as the year progresses, with January starting off the year at a mere 27% likelihood of sunny days. This downward trajectory continues into spring, where sunny days peak in May and June at 57% and 60%, before tapering off into the cooler and cloudier months of late autumn. Thus, while December may lack the abundant sunshine of summer, it still carries a modest chance to enjoy clear skies amid the festive spirit that fills the air.
In Sisli, Turkey, the daylight duration weaves a captivating narrative throughout the year, peaking in the sultry summer months. June dazzles with 15 hours of sunlight, inviting both activity and relaxation, while July and August gently taper off to 14 and 13 hours, respectively. As autumn descends, September brings a mild 12 hours, transitioning smoothly into October's 11 hours, and, by November, daylight retreats to 9 hours. This trend continues into December, mirroring the previous month's light, as Sisli embraces winter’s shorter days. The cyclical dance of sunlight beautifully highlights the changing seasons, from the vibrant abundance of summer to the introspective stillness of winter.
As December unfolds in Şişli, Turkey, the winds pick up, showcasing an average speed of 5.2 m/s (12 mph), matching the gusty conditions of October. This increase in wind speed marks a noticeable trend towards more blustery weather as the year draws to a close. Throughout the year, the wind has varied, starting off relatively brisk in the winter months and softening during the warmer summer, particularly in June when it dipped to 3.0 m/s (7 mph). However, as autumn settles in, the winds gain momentum again, with December’s breezy atmosphere bringing a refreshing chill that invigorates the vibrant streets of Şişli. It’s a delightful reminder of the season change, where cool gusts complement the festive spirit of the city, setting the stage for a lively end to the year.
Weather in Sisli varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sisli, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present a notable shift in weather patterns. December typically has a milder average temperature of around 10°C (50°F), with highs reaching up to 18°C (64°F) and lows around 1°C (34°F). It experiences about 108 mm (4.2 in) of precipitation over approximately 15 days, while humidity remains high at 85%. Conversely, January sees a drop in minimum temperatures, reaching as low as -3°C (27°F), with an average temperature of 7°C (45°F) and a maximum of 16°C (62°F). Precipitation slightly decreases to 102 mm (4.0 in) over 13 days, and humidity levels reduce slightly to 84%. For more detailed insights into the weather conditions in January, you can check out Sisli weather in January.
December and February exhibit notable differences in weather conditions. December experiences milder temperatures, with an average of 10°C (50°F), ranging from a minimum of 1°C (34°F) to a maximum of 18°C (64°F). It also tends to be wetter, with 108 mm (4.2 in) of precipitation over 15 days and a high humidity level of 85%. In contrast, February sees slightly cooler temperatures, averaging 8°C (46°F), with a minimum of -1°C (31°F) and a maximum of 17°C (62°F). Precipitation decreases to 66 mm (2.6 in) across 12 days, and humidity remains relatively stable at 84%. For more details on February weather, you can check Sisli weather in February.
December and March exhibit notable differences in weather patterns. In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 18°C (64°F), with an average temperature of 10°C (50°F). The month experiences higher precipitation, totaling 108 mm (4.2 in) over approximately 15 days, accompanied by a humidity level of 85%. In contrast, March sees cooler temperatures, with lows dropping to -2°C (29°F) and an average of 8°C (47°F), while still reaching highs of 18°C (65°F). Precipitation decreases to 82 mm (3.2 in) across about 12 days, with a slightly lower humidity at 83%. For more detailed insights into the weather in March, you can check Sisli weather in March.
December typically brings cooler weather, with average temperatures ranging from a minimum of 1°C (34°F) to a maximum of 18°C (64°F). The month is fairly wet, experiencing about 108 mm (4.2 in) of precipitation over 15 days, coupled with high humidity levels averaging 85%. In contrast, April shows a noticeable warming trend, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 23°C (73°F). This month sees significantly less rainfall, with only 49 mm (1.9 in) of precipitation over 8 days and a lower humidity level of 76%. For a closer look at weather patterns, you can check the detailed Sisli weather in April.
December and May present contrasting weather patterns. December experiences cooler temperatures with a minimum of 1°C (34°F) and an average of 10°C (50°F), while May showcases a more pleasant climate, with temperatures ranging from a minimum of 8°C (46°F) to an average of 17°C (63°F). In terms of precipitation, December is significantly wetter, averaging 108 mm (4.2 in) over 15 days, compared to May's 50 mm (2.0 in) over just 8 days. Moreover, humidity levels are higher in December at 85%, compared to 77% in May. For a more detailed look at May weather specifically, visit Sisli weather in May.
In December, the weather tends to be much cooler, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 18°C (64°F), averaging around 10°C (50°F). This month also experiences significant precipitation, with about 108 mm (4.2 in) over 15 days, coupled with high humidity levels at 85%. In contrast, June showcases a warmer climate, with temperatures starting at a minimum of 13°C (56°F) and reaching up to 30°C (86°F), averaging 22°C (71°F). Rainfall is lighter in June, totaling 40 mm (1.6 in) over just 7 days, and the humidity drops to a more comfortable 70%. For more specific details about the weather during this period, you can visit Sisli weather in June.
December and July present stark contrasts in weather patterns. December sees a much cooler climate with average temperatures around 10°C (50°F), while July boasts a warm average of 24°C (76°F). The maximum temperatures can reach up to 18°C (64°F) in December, compared to a sweltering 33°C (92°F) in July. Furthermore, December experiences significantly higher precipitation, with around 108 mm (4.2 in) over 15 days, while July has only 53 mm (2.1 in) over just 5 days. Humidity levels also reflect this difference, with December hovering at 85%, compared to a more comfortable 63% in July. For a closer look at July weather specifics, you can visit Sisli weather in July.
In December, the weather is considerably cooler, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 18°C (64°F), leading to an average of 10°C (50°F). This month also sees significant rainfall, totaling 108 mm (4.2 in) over approximately 15 days, coupled with high humidity at 85%. In contrast, August offers a warm embrace, featuring temperatures from a minimum of 19°C (66°F) to a peak of 34°C (93°F), resulting in an average of 25°C (77°F). Rainfall is sparse during this month, with only 18 mm (0.7 in) over just 3 days and a more comfortable humidity level of 55%. For a closer look at the specific conditions, check out Sisli weather in August.
In comparing the weather of December and September, distinct contrasts emerge in both temperature and precipitation. December sees much cooler temperatures, with a minimum of 1°C (34°F) and an average of 10°C (50°F), peaking at 18°C (64°F). This month experiences significantly more rainfall, totaling 108 mm (4.2 in) over 15 days, combined with high humidity levels at 85%. In stark contrast, September boasts a much warmer climate, with temperatures ranging from a minimum of 13°C (57°F) to a comfortable average of 22°C (72°F), peaking at 32°C (90°F). This month also features much lower precipitation, at just 36 mm (1.4 in) across 6 days, and a more moderate humidity of 60%. For more details, you can check Sisli weather in September.
When comparing the weather in December to that of October, it's clear that December tends to be much cooler and wetter. In December, temperatures range from a chilly 1°C (34°F) at night to a mild 18°C (64°F) during the day, with an average temperature of 10°C (50°F). In contrast, October boasts milder temperatures, with a minimum of 10°C (50°F), an average of 18°C (64°F), and a maximum of 28°C (82°F). Additionally, December sees significantly more rainfall, with 108 mm (4.2 in) of precipitation spread over 15 days, compared to October's 56 mm (2.2 in) over just 8 days. Humidity levels also rise in December to 85%, while October maintains a more comfortable 73%. For a detailed look at the October weather in Sisli, you can visit Sisli weather in October.
In comparing the weather of December and November, it is evident that December is notably cooler, with average temperatures ranging from a minimum of 1°C (34°F) to a maximum of 18°C (64°F), whereas November enjoys warmer conditions with temperatures between 7°C (44°F) and 22°C (72°F). Furthermore, December experiences more precipitation, totaling 108 mm (4.2 in) across 15 days, compared to November's 63 mm (2.5 in) over 10 days. Despite these differences, both months maintain relatively high humidity levels, with December slightly higher at 85% compared to November's 82%. For more detailed insights, you can check out Sisli weather in November.
As December unfolds in Sisli, the weather takes on a distinct character, marking a shift from the milder conditions of earlier months. With an average temperature around 10°C (50°F), you can expect cooler days and chilly nights, where the lows may drop to a brisk 1°C (34°F). The increase in humidity at 85% often contributes to a damp chill that can feel particularly crisp during this time. Additionally, December brings 15 days of rainfall, accumulating about 108 mm (4.2 in) of precipitation, making it markedly wetter compared to the drier summer months. This combination of cooler temperatures and increased precipitation creates a cozy, albeit dreary, atmosphere perfect for enjoying warm drinks and festive cheer. To learn more about how Sisli's weather varies throughout the year, visit Sisli Climate.