Last updated: August 21, 2025
In December, the picturesque island of Kos, Greece experiences a mild Mediterranean climate, with temperatures averaging around 15°C (60°F). Visitors can expect maximum daytime highs of 20°C (69°F), while nights can dip to a chilly 8°C (47°F). This month is characterized by a significant amount of rain, with total precipitation reaching 237 mm (9.3 in) over approximately 15 days, resulting in a humidity level of 78%. While the weather might be damp, the serene atmosphere and fewer crowds make it a unique time to explore the island's rich history and stunning landscapes.
As December settles in on Kos, Greece, the island experiences a gentle transition into winter, characterized by mild temperatures that invite exploration. The average temperature hovers around 15°C (60°F), making it a comfortable time for outdoor activities. The daily lows dip to about 8°C (47°F), while the highs reach up to 20°C (69°F), creating pleasant days that are ideal for leisurely strolls along the picturesque coastline. Compared to the preceding months, December marks a noticeable cooling trend, though the weather remains significantly milder than many other European destinations. This delightful climate, combined with fewer crowds, offers a unique opportunity to experience the serene beauty of Kos during the quieter winter season.
In December, Kos, Greece experiences a significant uptick in precipitation, with 237 mm (9.3 in) recorded over the month—making it one of the wettest periods of the year. This surge contrasts starkly with the dry summer months, where rainfall is virtually non-existent. December also sees the highest number of rainy days at 15, indicating that the island is enveloped in a rainy spell as it transitions fully into winter. This trend highlights a dramatic shift from the mild and arid conditions of the summer, showcasing the varied climate that defines this beautiful Mediterranean destination.
In December, humidity in Kos, Greece hovers around 78%, a slight increase from November's 77%. This elevated level marks a continuity in the trend of high humidity observed during the winter months, which consistently range from 76% to 81% from January through April. Notably, after the summer dip in July and August, where humidity dipped to 71% and 66% respectively, the autumn months began to see a gradual rise. This places December within the typical winter pattern of moderate humidity, ensuring that the island retains its signature mild and somewhat damp coastal climate as the year comes to a close.
In December, Kos, Greece experiences a moderate UV Index of 3, similar to the early months of the year. This month brings a 30-minute burn time, providing a perfect opportunity for outdoor activities while still reminding visitors to take necessary precautions against sun exposure. Notably, the UV Index gradually rises through the spring and summer months, peaking at 10 from May to August, which indicates the very high exposure category. As autumn sets in, the UV Index gently declines, stabilizing back to moderate levels by late fall. This seasonal trend underscores the importance of sun safety throughout the year. For more information, check the detailed UV data at Kos UV Index.
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Nestled in the heart of the Aegean Sea, Kos in December offers a gentle embrace of sunshine, with approximately 266 hours of daylight. While this marks a dip in sunlight compared to the vibrant months of July and June, when the island basks in over 410 hours, it still provides a lovely backdrop for leisurely strolls along sandy shores. The trend of gradually decreasing sunlight begins as autumn fades, yet December's warmth is a welcome reprieve from winter's chill in other parts of Europe. This mild winter month showcases Kos's charm, making it an ideal destination for those seeking a serene escape beneath the sun-dappled sky.
In December, Kos, Greece experiences a 45% chance of sunny weather, marking a dip compared to the months preceding it. This decline signifies a shift from the robust sunshine of summer, which peaks in July and August at nearly 100%, and the consistently bright days of May and June. As the year wraps up, sunshine becomes less reliable, with November seeing a further decrease to 49%. However, December still offers a fair opportunity for clear skies, making it a pleasant time for travelers who enjoy milder weather amid the beautiful backdrop of this Greek island.
In Kos, Greece, the rhythm of daylight duration throughout the year reveals a graceful dance between light and dark. December, with its 9 hours of daylight, marks a quiet return to shorter days, mirroring January's light. As winter settles in, the trend of increasing daylight begins its slow ascent in February, reaching 10 hours and hinting at the brighter days to come. By spring, the sun graces Kos with 11 hours in March, and the arrival of April and May brings a delightful surge to 13 and 14 hours, respectively. This peak continues through the summer months of June and July, where the island basks in the maximum sunlight. As summer wanes in August, daylight gently tapers to 13 hours, before gradually receding once again in September to 12 hours. The cycle completes itself in October and November, culminating in the familiar 9 hours of December—a reminder of the vibrant contrasts that each season brings in this Mediterranean paradise.
As December unfolds in Kos, Greece, the winds begin to pick up, matching the spring gusts with an average speed of 7.9 m/s (18 mph). This marks a return to stronger breezes reminiscent of the earlier months in the year, like April and March, creating a captivating atmosphere for those who revel in the invigorating embrace of the elements. Interestingly, the decline in wind speed during the warmer months of May through October offers a dramatic contrast, with calmer conditions dominating the summer heat. As the year draws to a close, December not only breathes life back into the island with its spirited winds but also reminds all of the dynamic weather patterns that adorn the coastal landscape throughout the seasons.
Weather in Kos varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kos, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is generally milder with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 20°C (69°F). The month experiences significant precipitation, totaling 237 mm (9.3 in) over 15 days, paired with a humidity level of 78%. In contrast, January sees slightly cooler temperatures, with an average minimum of 5°C (41°F) and a maximum of 18°C (66°F). Precipitation decreases to 193 mm (7.6 in) over 14 days, while humidity remains relatively steady at 77%. For more specific details on January weather patterns, you can refer to Kos weather in January.
In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), with an average of 15°C (60°F). This month sees significant precipitation, with 237 mm (9.3 in) falling over 15 days and humidity levels around 78%. In contrast, February experiences slightly cooler conditions, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 18°C (66°F) and an average of 14°C (57°F). The amount of precipitation decreases to 108 mm (4.2 in) over 11 days, and humidity is marginally lower at 76%. For more detailed weather information, you can visit Kos weather in February.
December and March present distinct weather characteristics. In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), with an average of 15°C (60°F). This month sees significant rainfall, with 237 mm (9.3 in) of precipitation over 15 days, resulting in a humidity level of 78%. Conversely, March experiences slightly cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 18°C (65°F), averaging 14°C (58°F). Precipitation drops considerably to 95 mm (3.7 in) over 8 days, and humidity remains similar at 77%. For more insights, you can visit Kos weather in March.
In December, the weather features a mild climate with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), averaging around 15°C (60°F). However, this month is characterized by significant precipitation, averaging 237 mm (9.3 in) over 15 rainy days, resulting in a humidity level of 78%. In contrast, April has slightly warmer temperatures, with a minimum of 9°C (49°F) and a maximum of 22°C (71°F), averaging 16°C (62°F). Precipitation is much lower in April, totaling just 36 mm (1.4 in) across 5 rainy days, and the humidity remains similar at 77%. For more details on what to expect, check out Kos weather in April.
In December, the weather is cooler, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), while experiencing significant rainfall, totaling 237 mm (9.3 in) over about 15 days. This results in a relatively high humidity level of 78%. In contrast, May brings warmer temperatures, with an average range from a minimum of 15°C (60°F) to a maximum of 24°C (76°F), and much less precipitation, totaling only 7 mm (0.3 in) over just 2 days. The humidity increases slightly to 81%. This shift from December’s wet and cooler conditions to May’s warmer and drier weather is notable. For more details, check out Kos weather in May.
When comparing the weather in December and June, it's clear that these months offer distinct experiences. December features milder temperatures, with averages around 15°C (60°F) and a high of 20°C (69°F), but it also brings considerable precipitation, totaling 237 mm (9.3 in) over approximately 15 days, creating a humid environment at 78%. In contrast, June is considerably warmer, with average temperatures soaring to 23°C (73°F) and highs reaching 29°C (84°F). This month boasts very little rain, with just 6 mm (0.2 in) of precipitation over only one day and similar humidity levels at 77%. For a closer look at what to expect during this sunny month, check out Kos weather in June.
In December, the weather is significantly cooler and wetter, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 20°C (69°F). This month also experiences substantial precipitation, averaging 237 mm (9.3 in) over about 15 days, resulting in a humidity level of 78%. In contrast, July offers warm and dry conditions, with temperatures soaring from a minimum of 22°C (72°F) to a maximum of 30°C (86°F). Remarkably, July sees no rainfall, leading to a lower humidity level of 71%. For more details on July's weather, visit Kos weather in July.
In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), with an average of 15°C (60°F). This month also sees significant precipitation, averaging 237 mm (9.3 in) over about 15 days, contributing to a higher humidity level of 78%. In contrast, August boasts much warmer weather, with temperatures starting at a minimum of 23°C (74°F) and reaching up to 30°C (87°F), averaging around 26°C (79°F). Notably, August experiences no rainfall, showcasing a completely dry climate with only 66% humidity. For more detailed information on the August weather, you can check Kos weather in August.
December and September offer contrasting weather experiences. In December, temperatures range from a minimum of 8°C (47°F) to a maximum of 20°C (69°F), with an average of 15°C (60°F). This month is significantly wetter, receiving about 237 mm (9.3 in) of precipitation over 15 days, leading to a higher humidity of 78%. In contrast, September boasts a much warmer climate, with temperatures between 19°C (66°F) and 28°C (84°F), averaging 24°C (76°F). The month is notably drier, featuring just 4 mm (0.2 in) of rain over 1 day and a lower humidity of 70%. For more detailed weather information, visit Kos weather in September.
In comparing the weather between December and October, November tends to be noticeably cooler and wetter. December features a minimum temperature of 8°C (47°F) and an average of 15°C (60°F), with a maximum of 20°C (69°F). In contrast, October enjoys warmer temperatures, with a minimum of 15°C (59°F) and an average high of 25°C (78°F). Additionally, December experiences significantly more rainfall, with 237 mm (9.3 in) recorded over 15 days, compared to October’s 57 mm (2.2 in) over just 4 days. The humidity is relatively similar, at 78% in December and 76% in October. To explore more about October's climate, you can check Kos weather in October.
In comparing the weather of December to that of November, we notice some distinct differences. December tends to be cooler, with minimum temperatures averaging around 8°C (47°F) compared to November's milder minimum of 11°C (52°F). The average temperature in December is also lower at 15°C (60°F) versus November's 19°C (66°F). Additionally, December is significantly wetter, receiving 237 mm (9.3 in) of precipitation over 15 days, while November sees only 123 mm (4.8 in) over 9 days. Humidity levels remain relatively constant, with December at 78% and November at 77%. For a closer look at November's weather specifics, you can visit Kos weather in November.
As December unfolds in Kos, the island experiences a noticeable shift in weather compared to the warmer months. Temperatures hover around a mild 15°C (60°F), offering a refreshing escape from the summer heat, yet evenings can be brisk, dipping to a cool 8°C (47°F). The increase in precipitation, with about 237 mm over approximately 15 days, introduces a vibrant transformation in nature, enhancing the island's lush landscapes. With humidity at 78%, the air feels crisper, invigorating those who venture out to explore. December on Kos is a time for cozy moments and stunning scenery, making it an ideal destination for those seeking a different seasonal charm. For more insights on the weather patterns year-round, visit Kos Climate.