Last updated: August 21, 2025
Experience the charming winter climate of Istro, Greece, in December, where temperatures range from a maximum of 19°C (67°F) to a minimum of 9°C (48°F), creating a mild atmosphere perfect for exploration. The average temperature hovers around 15°C (59°F), making it comfortable for outdoor activities. Despite the mild conditions, expect approximately 51 mm (2.0 in) of precipitation over 8 days, contributing to the region’s lush greenery. With a humidity level of 72%, December in Istro offers a refreshing coastal experience, ideal for those seeking a peaceful getaway amid stunning natural scenery.
As December unfolds in Istro, Greece, temperatures begin to dip, with minimums settling around 9°C (48°F) and averages reaching 15°C (59°F). This marks a distinct transition from the mild autumn, offering a refreshing chill in the air. The maximum temperature peaks at 19°C (67°F), providing brief warmth amidst the winter's arrival. Compared to the balmy summer months that boast mid-30s (°C), December serves as a reminder of seasonal changes, beckoning visitors to enjoy cozy evenings and the charm of the festive atmosphere in this picturesque locale. The overall trend reflects a gradual cooling, encouraging both relaxation and exploration in one of Greece's serene coastal gems.
In Istro, Greece, December brings a notable increase in precipitation, with an average of 51 mm (2.0 in) spread across 8 rainy days. This marks a sharp contrast to the drier summer months, where July and August saw almost no rain. The trend of precipitation builds throughout the latter part of the year, peaking in December after consistent rainfall in November. This shift not only replenishes the landscape but also heralds the onset of winter, creating a lush backdrop for the charming coastal village. As the year draws to a close, the revival of wet days highlights the region's dynamic climate, ensuring that the natural beauty of Istro remains vibrant and alive.
December in Istro, Greece, wraps up the year with a humidity level of 72%, mirroring the steady figures observed in January and February. As the winter months set in, humidity generally stabilizes, with December experiencing a favorable decrease from the warmer, humid summer months, peaking at 85% in May. This gradual decline throughout the fall, from 80% in September to 73% in November, illustrates the region's transition into a milder climate. Overall, while December's humidity reflects the temperate conditions typical of late autumn, it maintains a comfortable consistency, making it an inviting time to experience the serene beauty of Istro.
In December, the UV Index in Istro, Greece, dips to a manageable 3, placing it in the moderate exposure category. This is a contrast to the soaring levels seen during the summer months, where the index peaked at 11 in June, indicating extreme sun exposure. As the year winds down, the burn time lengthens back to 30 minutes, similar to January and February, providing a more gentle sun experience. This trend of fluctuating UV levels throughout the year highlights the importance of adjusting sun protection practices seasonally. For those seeking more details on sun safety in this beautiful location, check out the Istro UV Index.
UV Risk Categories
In Istro, Greece, December brings a gentle descent in sunshine hours, with an average of 268 hours, marking the beginning of winter's embrace. The month is characterized by a decline from the peak sunlight of July, which basks in an impressive 422 hours. As the year progresses from vibrant May with 397 hours to the cooler November, which sees 276 hours, December's sunlight continues the trend of diminishing daylight. This gradual transition highlights not only the seasonal changes but also the charm of the Mediterranean winter, making Istro a serene retreat as the year draws to a close. Embracing the warm sun amidst the cooler temperatures, December invites visitors to enjoy the tranquil beauty of this coastal paradise.
As December rolls into Istro, Greece, the likelihood of sunny weather remains moderate, with a 55% chance of sunshine gracing the skies. This modest figure reflects a gradual transition from the more sun-drenched months, such as July and August, which boast a stunning 99% probability of clear skies. Following the high summer months, there’s a noticeable decline, culminating in November’s 48%, before seeing a slight uptick as December approaches. While not guaranteed, the possibility of cheerful sunny days in December is a welcome reprieve from the drabness of winter, serving as a gentle reminder that even in the cooler months, the sun still seeks to shine in Istro.
In Istro, Greece, December marks the transition into the winter months, with daylight reducing to a brief 9 hours each day. This decline contrasts sharply with the longer sunlit days experienced in the peak summer months of June and July, where daylight peaks at 14 hours. As the year progresses from January through March, daylight gradually increases, hinting at the longer hours of spring ahead. By April, the days become notably longer, reaching 13 hours, a precursor to the full bloom of summer. However, as autumn sets in, the daylight hours gradually wane again, illustrating the cyclical nature of light throughout the year. This rhythm not only shapes the daily life in Istro but also enhances the charm of its picturesque winter landscapes.
As December settles in Istro, Greece, the winds pick up, averaging 6.0 m/s (13 mph), making it the breeziest month of the year. This uptick in wind speed from previous months, which hover around the 5.2 to 5.7 m/s range, signals a shift from the more tranquil summer breezes that grace the area. Throughout the year, the wind patterns reflect a notable trend: colder months typically welcome stronger gusts, while the warmer months tend to bring a gentle softness. December's invigorating winds not only enhance the beauty of the coastal landscape but also evoke a sense of crispness that invites both locals and visitors to embrace the vibrant winter charm of Istro.
Weather in Istro varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Istro, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January display noticeable differences in weather patterns. December boasts slightly warmer temperatures, with an average of 15°C (59°F), peaking at 19°C (67°F), while January experiences a decrease in the average temperature to 12°C (54°F). Precipitation levels are also slightly higher in December, with 51 mm (2.0 in) compared to January's 42 mm (1.7 in), although both months see rain on about eight days. Humidity remains consistent at 72% for both months, creating a relatively stable atmospheric condition. For more detailed insights on weather conditions during January, you can visit Istro weather in January.
In December, the weather typically experiences mild temperatures with a minimum of 9°C (48°F) and an average of 15°C (59°F), reaching a maximum of 19°C (67°F). This month also sees about 51 mm (2.0 in) of precipitation over approximately 8 days, paired with a consistent humidity level of 72%. In contrast, February tends to be slightly cooler, with minimum temperatures dropping to 6°C (43°F), an average of 13°C (55°F), and a maximum of 17°C (64°F). Precipitation in February is slightly lower at 41 mm (1.6 in) over 6 days, while humidity remains stable at 72%. For more details on the February weather, you can check out Istro weather in February.
December and March both offer mild temperatures, but December tends to be slightly warmer overall. In December, the temperatures range from a minimum of 9°C (48°F) to a maximum of 19°C (67°F), with an average of 15°C (59°F). In contrast, March sees lower minimum temperatures, starting at 5°C (42°F) and averaging around 13°C (56°F), with a maximum of 18°C (65°F). Precipitation is more frequent in December, with about 51 mm (2.0 in) over 8 days, compared to March, which experiences 36 mm (1.4 in) over just 5 days. Humidity levels are somewhat higher in March at 75%, compared to 72% in December. For more detailed information on March weather, check out Istro weather in March.
In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 19°C (67°F), with an average temperature of 15°C (59°F). The month experiences around 51 mm (2.0 in) of precipitation spread over approximately 8 days, contributing to a humidity level of 72%.
In contrast, April sees slightly warmer temperatures, with a minimum of 10°C (49°F) and a maximum of 24°C (76°F), while maintaining the same average of 15°C (60°F). The precipitation in April is much lighter at only 18 mm (0.7 in) over just 2 days, and humidity rises to 79%. This makes April generally drier and more comfortable compared to the wetter month of December. For more details on the weather in April, you can refer to Istro weather in April.
In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 19°C (67°F), with an average of 15°C (59°F). The month experiences approximately 51 mm (2.0 in) of precipitation over about 8 days, and the humidity averages around 72%. In contrast, May boasts a warmer climate, with temperatures ranging from 14°C (57°F) to a high of 30°C (86°F), averaging 19°C (67°F). Precipitation significantly decreases to just 18 mm (0.7 in) over about 2 days, while humidity rises to 85%. For a closer look at May weather conditions, you can check Istro weather in May.
When comparing the weather in December and June, it's clear that these two months exhibit striking contrasts. December features a milder climate with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 19°C (67°F) and averages around 15°C (59°F). This month experiences approximately 51 mm (2.0 in) of precipitation over eight days, with a humidity level of 72%. In contrast, June boasts much warmer conditions, with temperatures starting at 17°C (62°F) and soaring to a maximum of 32°C (89°F), averaging 23°C (73°F). It is significantly drier, with only 9 mm (0.3 in) of rainfall occurring on just one day, although the humidity is slightly higher at 84%. This shift from the cooler and wetter December to the hot and dry June highlights the seasonal variations experienced in the region. For more detailed insights into June weather, you can explore Istro weather in June.
December and July present contrasting weather patterns, highlighting the seasonal diversity. In December, temperatures range from a cool 9°C (48°F) at night to a mild 19°C (67°F) during the day, with an average temperature of 15°C (59°F). The month experiences more frequent rainfall, with 51 mm (2.0 in) of precipitation over 8 days and a humidity level of 72%. Conversely, July boasts much warmer conditions, with temperatures ranging between a minimum of 21°C (70°F) and a maximum of 34°C (94°F), averaging 25°C (78°F). Rainfall is virtually nonexistent, totaling just 2 mm (0.1 in) over the entire month, while humidity rises slightly to 83%. For a detailed look at the July weather in Istro, you can visit Istro weather in July.
December and August present striking contrasts in weather conditions. December sees cooler temperatures, with a minimum of 9°C (48°F) and an average of 15°C (59°F), while August offers a much warmer climate, boasting a minimum of 22°C (72°F) and an average of 26°C (79°F). Precipitation is more frequent in December, totaling 51 mm (2.0 in) over 8 days, compared to the virtually dry August, which experiences only 1 mm (0.1 in) of rain across 0 days. Humidity levels are slightly higher in August at 81%, while December maintains a humidity level of 72%. For more detailed information about weather in August, visit Istro weather in August.
When comparing the weather in December and September, a noticeable contrast emerges. In December, temperatures range significantly cooler, with minimums averaging around 9°C (48°F) and maximums reaching only 19°C (67°F). This month also sees a higher average humidity of 72% along with a moderate amount of precipitation, totaling 51 mm (2.0 in) over eight days. In stark contrast, September boasts much warmer temperatures, with minimums starting at 19°C (67°F) and averaging around 24°C (76°F), peaking at a maximum of 30°C (87°F). Precipitation during September is minimal, measuring just 6 mm (0.2 in) over only one day, and the humidity is slightly higher at 80%. The lack of rain and the warmer temperatures make September a more favorable month for outdoor activities. For more detailed insights, check out Istro weather in September.
When comparing the weather in December and October, it's evident that October is generally warmer and drier. In October, temperatures range from a minimum of 15°C (60°F) to a maximum of 29°C (84°F), with an average of 21°C (70°F). In contrast, December experiences cooler temperatures, with a minimum of 9°C (48°F) and an average of 15°C (59°F). Additionally, October has only 16 mm (0.6 in) of precipitation over three days, while December sees significantly more rain, totaling 51 mm (2.0 in) over eight days. Humidity levels are slightly higher in October at 77%, compared to 72% in December. For a deeper dive into the October climate, you can visit Istro weather in October.
In December, the weather becomes cooler compared to November, with average temperatures dropping from 18°C (65°F) in November to 15°C (59°F) in December. The minimum temperature in December is 9°C (48°F), significantly lower than November’s minimum of 13°C (55°F). While both months experience some rainfall, December registers slightly more precipitation at 51 mm (2.0 in) over 8 days, compared to November's 41 mm (1.6 in) over 5 days. Humidity remains fairly consistent, with November at 73% and December at 72%. For more details on November weather, you can check Istro weather in November.
In December, Istro experiences a notable shift in weather, with cooler temperatures making it a refreshing escape from the summer heat. The average temperature dips to a mild level, while the humidity remains relatively high, creating a distinctive atmosphere that sets it apart from other months of the year. This month brings a sprinkle of rain, contributing to the lush landscape of the region. Despite the occasional precipitation, the charm of Istro in December is undeniable, making it a unique time to explore the area's stunning natural beauty. For more insights on weather patterns, check out Istro Climate.