Last updated: August 21, 2025
December in Kalymnos, Greece offers a mild escape with average temperatures around 15°C (60°F), reaching a comfortable maximum of 21°C (69°F). Visitors can expect cooler evenings, with temperatures dipping to a minimum of 9°C (48°F). The island experiences a notable 78% humidity this month, accompanied by approximately 179 mm (7.1 in) of rainfall over 15 days. Despite the wet weather, December presents a unique charm, showcasing Kalymnos’s stunning natural beauty and making it an ideal time for those seeking a tranquil winter retreat.
As December settles in Kalymnos, Greece, temperatures reflect a gentle transition into winter, with daily minima around 9°C (48°F) and a comfortable average of 15°C (60°F). This month sees highs reaching 21°C (69°F), offering a mild respite compared to the scorching summer months. When you look at the overall trends, it's clear that December is cooler than the preceding months, yet it still retains a warm touch, enticing visitors with its pleasant climate. This blend of crisp air and moderate warmth creates an inviting atmosphere perfect for exploring the island’s stunning landscapes and rich history.
In December, Kalymnos, Greece experiences a significant surge in precipitation, with an impressive total of 179 mm (7.1 in), marking it as one of the wettest months of the year. This increase in rainfall is accompanied by a rise in rainy days, peaking at 15 days, illustrating the clear transition from the relatively dry summer months. Compared to January's 150 mm, December leads the charge as the month with the highest precipitation, highlighting a seasonal shift that brings much-needed moisture to the island. As the colder months unfold, it’s evident that December serves as a pivotal time for revitalizing the island's landscape after the prolonged dry spell from June to August, setting the stage for a lush and vibrant spring.
In Kalymnos, Greece, December brings a noticeable humidity level of 78%, which sits comfortably in line with the broader trends observed throughout the year. The island experiences a consistent humidity range, with percentages lingering between 66% and 81%. The winter months showcase a subtle increase after the drier summer, peaking in May. As the year winds down, December's humidity reflects a slight uptick compared to November's 77%, suggesting a gradual transition toward the wetter winter season. This mild humidity contributes to the island's charm, offering a refreshing atmosphere that's perfect for exploring its natural beauty.
In Kalymnos, Greece, the UV Index shows a clear seasonal pattern, peaking during the summer months. December sees a moderate UV Index of 3, indicating a burn time of 30 minutes, which is a welcome relief after the intense exposure seen in the summer. From April to August, the UV levels soar to 10, categorizing the exposure as very high and significantly reducing safe sun exposure times to just 15 minutes. This trend highlights the importance of sun protection throughout the year, with notable spikes in UV intensity from March through September. As you enjoy the sunny climate of Kalymnos, it's essential to remain informed and vigilant about UV exposure. For detailed insights on the UV Index, visit Kalymnos UV Index.
UV Risk Categories
As the year winds down, December in Kalymnos, Greece offers a gentle embrace of sunlight, with 268 hours warming the island—a delightful conclusion to a year brimming with radiant days. The trend reveals a steady crescendo of sunshine from the winter months, peaking in the vibrant summer, where July shines the brightest with 425 hours. Although December's daylight tapers off compared to the exuberant light of summer, it still holds onto a comforting glow, encouraging locals and visitors alike to savor the island's beauty before the new year begins. This gentle shift from the sunlit heights of summer to the softer, albeit still pleasant, warmth of winter paints December as a month of reflection and seasonal charm in this beautiful Greek haven.
As December arrives in Kalymnos, Greece, the likelihood of enjoying sunny weather starts to wane, with only a 44% chance of sunshine. This marks a notable decline from the preceding months, particularly when compared to the consistent warmth of summer, where sunny days soar to 99% in July and August. The transition from the vibrant sunshine of late summer to the cooler, cloudier days of winter can be observed in the gradual drop from 80% in October to 48% in November. While December does not bring the same level of brightness as earlier months, it still offers a fair shot at enjoying pleasant weather, especially for those looking to escape winter in other parts of the world.
In Kalymnos, Greece, December marks the conclusion of the sun's gradual descent towards its shortest day, offering around 9 hours of daylight. This duration mirrors January's light, suggesting a seasonal consistency as the year closes. As we glance back over the months, a distinct pattern emerges: daylight steadily increases from 10 hours in February, reaching a peak of 14 hours from May through July, before gently tapering off again. The transition from summer into autumn sees a graceful decline, with daylight gently dwindling from 13 hours in August to 11 hours in October, and finally settling back to the winter minimum. This rhythmic dance of daylight not only influences the island's vibrant lifestyle but also adds a unique charm to each season in this picturesque locale.
As December unfolds in Kalymnos, Greece, the island welcomes a brisk average wind speed of 8.4 m/s (19 mph), a lively breath of air that matches the earlier months of the year. Notably, December's winds echo the consistency seen from July through early November, stabilizing the coastal environment after a dip in the calmer months of May and October. This resurgence invites sailors and adventurers alike, reminiscent of March's and April’s spirited breezes, making it an excellent time for outdoor enthusiasts to embrace the island's stunning landscapes. With winds gently whipping through the Aegean, December in Kalymnos offers a vibrant yet inviting atmosphere, perfect for both exploration and relaxation.
Weather in Kalymnos varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kalymnos, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is generally warmer with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 21°C (69°F), while January sees cooler conditions, with averages between 5°C (42°F) and 19°C (66°F). Precipitation is higher in December, totaling 179 mm (7.1 in) over 15 days, compared to January's 150 mm (5.9 in) spread over 13 days. Both months exhibit high humidity, with December at 78% and January slightly lower at 77%. For a detailed look at January weather specifics, check out the link: Kalymnos weather in January.
Comparing the weather in December and February reveals some notable differences. December enjoys a slightly warmer average temperature, ranging from a minimum of 9°C (48°F) to a maximum of 21°C (69°F), while February's temperatures are cooler, with a minimum of 5°C (41°F) and a maximum of 19°C (66°F). December also experiences more precipitation, with 179 mm (7.1 in) falling over approximately 15 days, compared to February's 97 mm (3.8 in) over about 10 days. Humidity levels remain quite similar, at 78% in December and 76% in February. For more detailed information on the weather patterns, you can check Kalymnos weather in February.
December and March present distinct weather characteristics, with December offering slightly warmer days but higher precipitation. In December, the temperatures range from a minimum of 9°C (48°F) to a maximum of 21°C (69°F), accompanied by 179 mm (7.1 in) of rain over 15 days, resulting in a humidity level of 78%. In contrast, March showcases cooler temperatures with a minimum of 5°C (41°F) and a maximum of 18°C (65°F). The month experiences significantly less rainfall, totaling 75 mm (3.0 in) over just 7 days, while maintaining a similar humidity level of 77%. For more insights on the weather in March, you can check out Kalymnos weather in March.
December and April in Kalymnos present notably different weather patterns. In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 21°C (69°F), with an average of 15°C (60°F). This month is characterized by higher precipitation, averaging 179 mm (7.1 in) over 15 days and a humidity level of 78%. In contrast, April offers slightly warmer conditions with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 21°C (70°F), and an average of 16°C (61°F). However, April experiences significantly less rain, with only 30 mm (1.2 in) over just 4 days and a similar humidity level of 77%. For more detailed information, you can check Kalymnos weather in April.
In December, the weather is noticeably cooler with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 21°C (69°F), accompanied by significant precipitation of 179 mm (7.1 in) over approximately 15 days. The humidity sits at a relatively high level of 78%, contributing to a moist and often overcast atmosphere.
In contrast, May brings warmer temperatures, with a minimum of 15°C (60°F) and a maximum of 24°C (75°F), along with a much drier climate characterized by only 4 mm (0.1 in) of precipitation across the month, and no rainy days. The humidity in May is slightly higher at 81%, but the overall experience is more pleasant and sunny. For more detailed information, visit Kalymnos weather in May.
In December, the weather is cooler with average temperatures ranging from 9°C (48°F) to 21°C (69°F), and the region experiences significant rainfall, totaling 179 mm (7.1 in) over 15 days. This makes December quite humid, with levels reaching 78%. In contrast, June welcomes warmer temperatures, averaging between 16°C (61°F) and 27°C (82°F), accompanied by minimal precipitation of just 4 mm (0.1 in) over only 1 day, and a slightly lower humidity of 77%. For those interested in more detailed information, check out Kalymnos weather in June.
When comparing December and July weather, it's clear that they present vastly different climates. In December, temperatures range from a cool 9°C (48°F) to a pleasant 21°C (69°F), with an average temperature of around 15°C (60°F). The month is also characterized by significant rainfall, with about 179 mm (7.1 in) of precipitation over 15 days, resulting in a humidity level of 78%. In stark contrast, July boasts much warmer temperatures, with minimums of 22°C (71°F) and maximums reaching up to 29°C (84°F), averaging 25°C (77°F). Remarkably, July experiences no rainfall, leading to lower humidity levels of 71%. For more detailed information about July weather, visit Kalymnos weather in July.
When comparing the weather in December and August, the differences are striking. December experiences cooler temperatures, with a minimum of 9°C (48°F) and an average of 15°C (60°F), while August boasts a much warmer climate, featuring a minimum of 23°C (73°F) and an average of 25°C (78°F). Additionally, December sees considerable precipitation, averaging 179 mm (7.1 in) over 15 days, creating a quite humid environment at 78%. In contrast, August is dry, with no recorded precipitation and a lower humidity of 66%, making it ideal for outdoor activities. For those interested in the climate specifics, you can find more information here: Kalymnos weather in August.
When comparing the weather in September and December, distinct differences are evident. In December, temperatures range from a minimum of 9°C (48°F) to a maximum of 21°C (69°F), with an average temperature of 15°C (60°F). This month also experiences higher precipitation, totaling 179 mm (7.1 in) over 15 days, paired with a humidity level of 78%. In contrast, September boasts milder conditions with temperatures ranging from 19°C (66°F) to 28°C (83°F) and an average of 24°C (75°F). Remarkably, September enjoys very little rainfall, with only 4 mm (0.1 in) across zero days, and a lower humidity of 70%. For those interested in exploring more details about September weather, Kalymnos weather in September offers comprehensive information.
In comparing the weather between December and October, we see notable differences. December experiences cooler temperatures, with a minimum of 9°C (48°F) and an average of 15°C (60°F), while October boasts a milder climate, starting at a minimum of 15°C (59°F) and averaging 21°C (70°F). Additionally, October is significantly drier, receiving just 38 mm (1.5 in) of precipitation over 4 days, in contrast to December's 179 mm (7.1 in) spread across 15 days. Humidity levels are relatively similar, with December at 78% and October slightly lower at 76%. For more detailed insights on October's weather, you can check Kalymnos weather in October.
When comparing the weather of December and November, we see notable differences in both temperature and precipitation. December experiences cooler temperatures, with a minimum of 9°C (48°F) and an average of 15°C (60°F), compared to November's milder minimum of 12°C (53°F) and average of 19°C (66°F). Furthermore, December is significantly wetter, receiving 179 mm (7.1 in) of precipitation over 15 days, while November has just 87 mm (3.4 in) over 8 days. Humidity levels remain similar, with December at 78% and November slightly lower at 77%. For more details on November weather specifics, check out Kalymnos weather in November.
As December ushers in winter, Kalymnos experiences a notable shift in weather compared to other months. With cooler temperatures and increased precipitation, this month sees the island cloaked in a refreshing greenery. Unlike the warmer, more arid summer months, December offers an average temperature of around 15°C, providing a pleasant escape from the heat. However, the 78% humidity can make the cool air feel a bit damp, especially with a significant 179 mm of rain spread over 15 days. Despite the showers, December’s mild climate allows for outdoor adventures, making it a unique time to explore the island's beautiful landscapes. For a detailed look at the weather patterns year-round, check out Kalymnos Climate.