Last updated: August 21, 2025
In January, Kalymnos, Greece experiences a mild winter, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 19°C (66°F), averaging around 13°C (56°F). The island sees approximately 150 mm (5.9 in) of rainfall over 13 days, contributing to an overall humidity level of 77%. While the weather may be on the cooler side, its mild temperatures and lush landscapes provide a refreshing escape, inviting visitors to explore the natural beauty of this charming destination.
In January, Kalymnos, Greece, experiences a mild winter, with temperatures ranging from a crisp 5°C (42°F) overnight to a comfortable 19°C (66°F) during the day. The average temperature hovers around 13°C (56°F), providing a pleasant backdrop for exploring the island's stunning landscapes. As winter transitions into spring, temperatures gradually rise, with February reflecting similar conditions but a slight increase in the average to 14°C (57°F). This trend of gradual warming continues through the coming months, laying the groundwork for the warmer temperatures that define Kalymnos's vibrant summers. Overall, January offers a serene escape with just enough warmth to indulge in outdoor activities while avoiding the crowds typical of peak tourist seasons.
January in Kalymnos, Greece, heralds the wettest month of the year, with precipitation reaching 150 mm (5.9 in) across 13 rainy days. As winter deepens, the island experiences a notable contrast to the arid summer months, where rainfall dwindles to nothing in July and August. Following January, precipitation tends to decrease steadily, with February's 97 mm (3.8 in) marking a significant decline, and March further softening to just 75 mm (3.0 in). By the time spring rolls in, rainfall drops dramatically, landing at only 30 mm (1.2 in) in April and becoming nearly negligible by May and June. This trend sets the stage for dry, sun-soaked summers, making January a pivotal month for replenishing the island's natural resources.
In January, Kalymnos, Greece, experiences a humidity level of 77%, setting the tone for a relatively moist start to the year. This consistent humidity persists through February and March, which both maintain a level of 76-77%. As spring approaches in April, the humidity remains stable at 77%, providing a comfortable atmosphere. However, a notable increase occurs in May, where humidity rises to 81%, indicating the onset of summer humidity. The following months, June through August, display a gradual decline, with July and August reaching their lowest points at 71% and 66%, respectively. September sees a slight uptick to 70%, while the humidity gradually returns to higher levels in the fall, stabilizing around 76-78% from October to December. Overall, January's humidity is characteristic of the moderate levels that define Kalymnos's climate, highlighting a transition from the cooler, wetter months to the drier summer.
In January, Kalymnos greets the year with a moderate UV Index of 3, allowing for comfortable outdoor activities with a burn time of approximately 30 minutes. As the winter months progress, the UV Index gradually increases, peaking at 5 in February before making a notable leap to 7 in March, signaling the onset of spring and a shift towards high exposure risks. This upward trend continues thrice for April and May, where the indices hit 8 and 10, respectively, indicating very high exposure levels and a significantly reduced burn time of just 15 minutes. By mid-summer, the UV Index remains steadfast at 10 through to August, maintaining that intensity as the days grow hotter. As September rolls in, there’s a slight drop to 8, then a gradual decline towards 6 in October, allowing for a more manageable UV exposure. However, the year closes with moderate levels again in November and December, with an Index of 4 and 3 respectively, restoring the longer 30-minute burn times. This annual UV pattern underscores the importance of sun safety throughout the year. For detailed information on UV levels, check out Kalymnos UV Index.
UV Risk Categories
January in Kalymnos, Greece, offers a delightful start to the year with 214 hours of sunshine, setting the stage for the bright days ahead. As winter fades, the sun begins to shine more generously, with February seeing a significant rise to 271 hours. The trend continues to escalate through the spring months, peaking in April with 353 hours. By the time summer rolls around, Kalymnos basks in the warm glow of 412 hours in June, reaching its zenith in July with an impressive 425 hours of sunshine. Although the days gradually shorten as autumn approaches, sunshine remains abundant, with 396 hours in August and a pleasant 350 hours in September. Even as the year ends, the island remains radiant, showcasing 268 hours in December. This evolving pattern of light reflects not just a changing season but the island's vibrant spirit, inviting visitors to bask in its warmth throughout the year.
In Kalymnos, Greece, January greets visitors with a 39% chance of sunny weather, marking it as one of the cloudier months of the year. As winter gradually yields to spring, the likelihood of sunshine increases significantly, with February and March showcasing 67% and 68% sunny days, respectively. This positive trend continues into April (55%) and blossoms beautifully in the late spring, with May enjoying a 78% chance of sun. As summer approaches, the sun becomes almost a constant companion, peaking at a dazzling 99% in both July and August. Thus, while January may not boast the sunniest disposition, the transition into sunnier months is evident, inviting travelers to embrace the warmth as the seasons unfold.
In Kalymnos, Greece, January ushers in an average of 9 hours of daylight, setting the stage for a gradual increase as the months unfold. By February, daylight enhances to 10 hours, marking a subtle shift towards longer days. March continues this trend, offering 11 hours of sunshine. As spring approaches in April and May, daylight peaks dramatically at 13 and 14 hours, respectively, enticing residents and visitors outdoors to embrace the vibrant island life. The summer months of June and July maintain this 14-hour daylight duration, providing ample time for exploration and leisure. However, as August sets in, daylight starts to wane slightly, followed by a steady decline throughout the autumn months, culminating back at 9 hours in December. This rhythmic ebb and flow of daylight not only highlights the beauty of the seasons but also fosters a dynamic atmosphere on this enchanting island.
In January, breezes sweep across Kalymnos, with an average wind speed of 8.3 m/s (18 mph), setting the tone for a month often marked by invigorating outdoor adventures. The winds remain consistent into February, retaining the same speed, before picking up slightly in March and April, when they reach up to 8.5 m/s (19 mph). As spring approaches, the winds begin to soften, particularly in May, dropping to 6.2 m/s (14 mph), suggesting more tranquil days ahead. This pattern continues through the summer, where speeds hover around 8.4 m/s (19 mph) in July and then ease slightly in the following months. Interestingly, December brings back the brisk winds, echoing January’s energetic atmosphere. Overall, Kalymnos experiences a dynamic wind profile that enhances both the charm of the island and the thrill of its outdoor activities throughout the year.
Weather in Kalymnos varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Kalymnos, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures range from a minimum of 5°C (42°F) to a maximum of 19°C (66°F), with an average temperature of 13°C (56°F). The month also sees substantial precipitation, totaling 150 mm (5.9 in) over 13 rainy days, and experiences a high humidity level of 77%.
February, on the other hand, maintains similar temperature patterns, with a minimum of 5°C (41°F) and a maximum of 19°C (66°F), but averages slightly warmer at 14°C (57°F). Precipitation decreases to 97 mm (3.8 in) over 10 days, and humidity levels remain close at 76%. For a detailed look at the weather in February, you can visit Kalymnos weather in February.
In January, temperatures range from a minimum of 5°C (42°F) to a maximum of 19°C (66°F), with an average of 13°C (56°F). The month is relatively wet, receiving about 150 mm (5.9 in) of precipitation over 13 days, while humidity remains high at 77%. In contrast, March experiences slightly milder temperatures, with an average of 14°C (58°F) and a maximum of 18°C (65°F), but the minimum remains the same at 5°C (41°F). Precipitation decreases significantly to 75 mm (3.0 in) over just 7 days, while humidity remains consistent at 77%. For more detailed information about March weather, visit Kalymnos weather in March.
In January, the weather features cooler temperatures, with a minimum of 5°C (42°F) and an average of 13°C (56°F), reaching a maximum of 19°C (66°F). It is also quite wet, with around 150 mm (5.9 in) of precipitation spread over 13 days, maintaining a consistent humidity level of 77%. In contrast, April brings milder conditions, with minimum temperatures rising to 10°C (50°F) and an average of 16°C (61°F), peaking at 21°C (70°F). Notably, April sees significantly less rainfall, totaling only 30 mm (1.2 in) over just 4 days, while humidity remains steady at 77%. For more details, check out Kalymnos weather in April.
In January, the weather is characterized by cooler temperatures, with a minimum of 5°C (42°F) and an average of 13°C (56°F), peaking at 19°C (66°F). This month also sees significant precipitation, averaging 150 mm (5.9 in) over 13 days, and humidity levels around 77%. In contrast, May brings a noticeable warmth, with minimum temperatures rising to 15°C (60°F) and averages reaching 19°C (67°F), with a maximum of 24°C (75°F). The precipitation is minimal in May, only 4 mm (0.1 in) and none of the days experiencing rain, while humidity slightly increases to 81%. Overall, May offers a much drier and warmer climate, making it a more inviting time to visit. For more insights, check out Kalymnos weather in May.
In January, temperatures in the region fluctuate between a minimum of 5°C (42°F) and a maximum of 19°C (66°F), with an average of 13°C (56°F). This winter month also experiences considerable rainfall, totaling about 150 mm (5.9 in), spread across 13 days, contributing to a high humidity level of 77%. In contrast, June brings much warmer weather, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 27°C (82°F) and an average of 23°C (73°F). Notably, June sees a significant reduction in precipitation, with only 4 mm (0.1 in) expected over just one day, while maintaining the same humidity level of 77%. For more details about June weather in this region, you can check out Kalymnos weather in June.
In January, the weather is much cooler with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 19°C (66°F), accompanied by significant rainfall of 150 mm (5.9 in) over about 13 days, resulting in higher humidity at 77%. In contrast, July boasts a warm climate with temperatures from 22°C (71°F) to 29°C (84°F), characterized by dry conditions as it experiences no rainfall and maintains a lower humidity level of 71%. This stark contrast highlights the shift from a wet, cool winter to a warm, dry summer. For more details, you can check Kalymnos weather in July.
January and August showcase stark contrasts in weather conditions. January experiences cooler temperatures, with a minimum of 5°C (42°F) and an average of 13°C (56°F), peaking at 19°C (66°F). This month also sees considerable precipitation, with about 150 mm (5.9 in) of rain over 13 days, resulting in high humidity levels of 77%. In contrast, August basks in warmth, featuring a minimum temperature of 23°C (73°F) and averaging 25°C (78°F), with a maximum of 29°C (85°F). Notably, August is dry, boasting 0 mm of rainfall and no rainy days, alongside a lower humidity of 66%. For more details, you can check Kalymnos weather in August.
In January, the weather is notably cooler, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 19°C (66°F) and an average of 13°C (56°F). This month sees significant precipitation, totaling 150 mm (5.9 in) over approximately 13 days, accompanied by a humidity level of 77%. In contrast, September enjoys much warmer temperatures, with a minimum of 19°C (66°F), an average of 24°C (75°F), and a maximum of 28°C (83°F). The month is characterized by a dry spell, with only 4 mm (0.1 in) of precipitation and no rainy days, as humidity dips to 70%. For more details on the delightful weather in September, you can visit Kalymnos weather in September.
In January, the weather is noticeably cooler, with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 19°C (66°F), alongside significant precipitation of 150 mm (5.9 in) spread over 13 days, leading to a humid atmosphere at 77%. In contrast, October brings a much milder climate, featuring average temperatures between 15°C (59°F) and 25°C (77°F), with only 38 mm (1.5 in) of rain falling over just 4 days, resulting in a slightly lower humidity of 76%. For more detailed weather insights, you can check out Kalymnos weather in October.
When comparing the weather in January and November, January tends to be cooler with average temperatures ranging from 5°C (42°F) to 19°C (66°F), while November enjoys milder conditions with temperatures between 12°C (53°F) and 23°C (74°F). Notably, January also experiences more precipitation, with 150 mm (5.9 in) over 13 days compared to November’s 87 mm (3.4 in) across 8 days. Despite the differences in temperature and precipitation, both months share a consistent humidity level of 77%. For more detailed climate information, you can visit Kalymnos weather in November.
In comparison to December, January experiences slightly cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 19°C (66°F), while December sees a range from 9°C (48°F) to 21°C (69°F). Additionally, January tends to have more precipitation, totaling 150 mm (5.9 in) over 13 days, compared to December's 179 mm (7.1 in) over 15 days. Humidity remains relatively consistent, with January at 77% and December at 78%. For those interested in more detailed insights, check out Kalymnos weather in December.
In January, Kalymnos experiences a noticeable shift in weather compared to the rest of the year. With a milder temperature range and increased precipitation, this month brings a refreshing contrast that is perfect for those seeking a quieter, more serene atmosphere. The humidity levels are higher, adding to the coolness of the air, making it an excellent time for adventurous explorers or those wanting to enjoy the island's natural beauty without the summer crowds. For an in-depth look at what to expect throughout the year, visit Kalymnos Climate.