Last updated: August 21, 2025
December in Thessaloniki, Greece, offers a captivating blend of winter's chill and festive spirit. With maximum temperatures reaching 18°C (65°F) and an average of around 7°C (45°F), the weather can be quite variable. Expect occasional cold snaps, as minimum temperatures can plummet to -6°C (22°F). This month sees 83 mm (3.3 in) of precipitation over about 9 days, creating a cozy atmosphere perfect for enjoying seasonal delights. Additionally, high humidity levels at 87% contribute to a brisk, invigorating air that complements the city's vibrant holiday charm.
As December settles in Thessaloniki, temperatures begin to reflect the chill of winter, with minimums dipping to -6°C (22°F) and average temperatures hovering around 7°C (45°F). This marks a noticeable contrast to the mild autumn preceding it, as the city's weather transitions to more brisk conditions. Even though daytime highs can reach up to 18°C (65°F), there's a crispness in the air, hinting at the cooler months ahead. The gradual drop in temperatures from the pleasant autumn warmth of November, which had averaged 12°C (53°F), signals the end of a mild season and prepares visitors for a cozy winter experience in this vibrant city.
In December, Thessaloniki experiences a notable uptick in precipitation, with an average of 83 mm (3.3 in) spread over 9 days. This marks a slight increase from the previous month, November, which recorded 80 mm (3.2 in) across 10 days. As winter settles in, the city sees a consistent pattern of rainfall, reinforcing the shift from drier autumn months. Compared to the drier summer periods, where precipitation often dips below 60 mm, December’s moist climate not only contributes to the winter scenery but also sets the stage for a vibrant local ecosystem. The increase in precipitation during this month, while accompanied by a reduction in rainy days, highlights a trend towards heavier, more concentrated rainfall patterns as the year comes to a close.
In December, Thessaloniki experiences a significant rise in humidity, reaching 87%, just slightly below November's 85%. This increase is part of a broader trend seen throughout the winter months, where humidity levels remain notably high, peaking in January at an impressive 88%. As the year progresses from summer's low of 47% in August, the transition to the cooler months prompts a gradual ascent in moisture levels, reflecting the Mediterranean climate's characteristic shift. December's humidity, while still elevated, sets the stage for a cozy winter atmosphere, evoking the comfort of warm indoor spaces as the city embraces the season's chill.
As the year comes to a close, December in Thessaloniki, Greece, brings a welcome drop in the UV Index, registering at a low value of 2. This shift indicates a much safer sun exposure compared to the summer months, where figures soared as high as 10 in June. With a burn time of 45 minutes, residents and visitors can enjoy outdoor activities with less risk of sunburn, making this month ideal for leisurely strolls and exploration. This trend of diminishing UV levels from the peak summer season through to winter highlights the importance of observing seasonal changes for skin health. For more detailed insights, check the full Thessaloniki UV Index.
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In December, Thessaloniki experiences a gentle transition towards winter, with 222 hours of sunshine gracing the city. While this marks a notable decrease from the sun-soaked intensity of summer months, it remains a warm embrace compared to the harsher winter climates found elsewhere. As the year wraps up, December's sunlight is a reminder of the vibrant warmth that the city enjoys from May's peak of 396 hours down to the winter's softer glow. The gradual decline from January's 188 hours to December’s bright yet brisk days illustrates a seasonal rhythm innate to this charming Mediterranean locale, where even the shorter days are sprinkled with inviting sunshine, perfect for leisurely strolls along the waterfront.
As December arrives in Thessaloniki, Greece, the likelihood of sunny weather emerges as a modest yet hopeful 48%. This figure reflects a slight recovery from November's cooler embrace, where the chance of sunshine dips to 31%. Throughout the year, Thessaloniki experiences a clear trend: summer months bask in abundant sun, with July and August soaring to 79% and 80% respectively. However, as we transition to winter, the propensity for sunny days decreases, yet December still offers a glimmer of brightness amidst the chill. This balance of seasons underscores the city’s Mediterranean climate, inviting both locals and visitors to embrace the winter sun when it graces the horizon.
As winter sets in, December in Thessaloniki brings a return to shorter days, mirroring the daylight duration of November with approximately 9 hours of sunlight. This month marks the low point of daylight hours in the year, creating a cozy atmosphere perfect for enjoying the city's festive spirit. Following a gradual increase in daylight from just 10 hours in February to a peak of 15 hours in June, Thessaloniki's daylight begins its descent as the seasons change. The consistent return to 9 hours in both December and November suggests a rhythmic pattern, reflecting nature's cycle and inviting locals and visitors alike to embrace the charm of the city's winter twilight. As the days grow shorter, the enchanting evenings offer the perfect backdrop for exploring Thessaloniki's rich history and vibrant culture.
As December unfolds in Thessaloniki, the city experiences a gentle increase in wind activity, with an average wind speed of 2.4 m/s (5 mph). This represents a slight uptick following a gradual decline in wind velocities over the preceding months. Compared to the calmer autumn winds that linger around 1.7 m/s in November, December's breezes bring a refreshing change, hinting at the transition from mild fall into the cooler embrace of winter. Interestingly, this month's wind speed aligns closely with that of the spring and early summer, suggesting that even in the heart of winter, Thessaloniki retains a bit of its vibrant, breezy charm, inviting locals and visitors alike to enjoy its coastal vistas.
Weather in Thessaloniki varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Thessaloniki, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures range from a minimum of -6°C (22°F) to a maximum of 18°C (65°F), providing an average of 7°C (45°F). The month experiences higher precipitation, with 83 mm (3.3 in) over 9 days and humidity levels around 87%. In contrast, January sees a slight drop in temperatures, with minimums reaching -10°C (14°F) and an average of 4°C (39°F), while still retaining a maximum of 18°C (65°F). Precipitation decreases to 58 mm (2.3 in) over 8 days, and humidity remains comparable at 88%. For more detailed weather information, you can check Thessaloniki weather in January.
December weather in Thessaloniki typically sees a range in temperatures from a minimum of -6°C (22°F) to a maximum of 18°C (65°F), with an average of about 7°C (45°F). The month experiences higher humidity at 87% and receives approximately 83 mm (3.3 inches) of precipitation over about 9 days. In contrast, February features slightly milder temperatures, with a minimum of -5°C (23°F) and a maximum of 20°C (68°F), maintaining an average of 7°C (46°F). This month has less rain, totaling around 46 mm (1.8 inches) over approximately 8 days and lower humidity at 83%. For more details, you can visit Thessaloniki weather in February.
December and March exhibit notable differences in weather patterns. In December, temperatures range from a chilly minimum of -6°C (22°F) to a mild maximum of 18°C (65°F), with an average temperature of 7°C (45°F). The humidity is quite high at 87%, and precipitation is recorded at 83 mm (3.3 in) over 9 days. In contrast, March sees a slightly milder range, with minimums around -3°C (27°F) and maximums reaching up to 25°C (77°F), averaging 10°C (50°F). Though precipitation is similar at 84 mm (3.3 in), it occurs over more days (12 days) and humidity decreases to 81%. For a more detailed look at weather in March, you can check out Thessaloniki weather in March.
December and April present contrasting weather patterns in terms of temperature and overall climate. In December, the temperature ranges from a chilly minimum of -6°C (22°F) to a mild maximum of 18°C (65°F), with an average of 7°C (45°F). This month experiences higher humidity at 87% and more precipitation, totaling 83 mm (3.3 in) over 9 days. In contrast, April brings a significant warming trend, with temperatures ranging from a minimum of 1°C (34°F) to a much warmer maximum of 29°C (85°F), averaging around 14°C (57°F). Precipitation decreases to 57 mm (2.2 in) across the same number of days, and humidity drops to a more comfortable 71%. For more detailed information about the weather in this month, you can check out Thessaloniki weather in April.
December and May present strikingly different weather patterns. In December, temperatures can dip as low as -6°C (22°F) and typically range from an average of 7°C (45°F) to a maximum of 18°C (65°F), accompanied by high humidity at 87%. The month experiences about 83 mm (3.3 in) of precipitation over 9 days. In contrast, May brings more warmth with minimum temperatures around 8°C (47°F) and average highs reaching 19°C (67°F), peaking at 33°C (91°F). Although May has slightly less precipitation at 77 mm (3.0 in) over 10 days, it boasts a lower humidity level of 74%. For more specific details, you can check Thessaloniki weather in May.
December and June present strikingly different weather patterns. In December, temperatures range from a chilly -6°C (22°F) at night to a mild 18°C (65°F) during the day, with an average of about 7°C (45°F). The month sees around 83 mm (3.3 in) of precipitation over approximately 9 days, along with high humidity levels of 87%. In contrast, June boasts much warmer temperatures, with lows of 12°C (54°F) and highs soaring up to 38°C (101°F), averaging around 23°C (74°F). Although June has slightly higher precipitation, totaling 100 mm (3.9 in) over about 13 days, the humidity is considerably lower at 63%. For more specific details on June weather, check out Thessaloniki weather in June.
December and July present stark contrasts in weather. December typically experiences colder temperatures with a minimum of -6°C (22°F) and an average of 7°C (45°F), peaking at 18°C (65°F). The month also sees higher precipitation, averaging 83 mm (3.3 in) over 9 days, coupled with high humidity at 87%. In contrast, July boasts a much milder climate, with temperatures ranging from a minimum of 16°C (61°F) to an average of 26°C (79°F), and maximums reaching up to 39°C (102°F). With only 52 mm (2.1 in) of precipitation over 7 days and humidity dropping to 60%, July is notably drier and more comfortable. For more details on July weather, you can visit Thessaloniki weather in July.
December and August present strikingly different weather patterns. In December, temperatures can dip as low as -6°C (22°F) with an average of 7°C (45°F) and a maximum of 18°C (65°F). The month is characterized by significant humidity at 87% and experiences about 83 mm (3.3 in) of precipitation over nine days. In contrast, August boasts much warmer conditions, with temperatures ranging from a minimum of 15°C (60°F) to a scorching maximum of 40°C (105°F) and an average of 26°C (80°F). Precipitation is lighter during this month, totaling 50 mm (2.0 in) across only five days, and the humidity drops considerably to 47%. For more details on the warm weather in this summer month, visit Thessaloniki weather in August.
The weather in December is markedly cooler than in September, with December temperatures ranging from a minimum of -6°C (22°F) to a maximum of 18°C (65°F) and an average of 7°C (45°F). In contrast, September enjoys much warmer conditions, with temperatures that span from a minimum of 8°C (46°F) to a peak of 35°C (95°F) and an average of 22°C (72°F). Moreover, December experiences higher humidity at 87% and more precipitation, totaling 83 mm (3.3 in) over approximately 9 days, compared to September’s 27 mm (1.1 in) spread over just 5 days. For more on September’s weather specifics, you can check Thessaloniki weather in September.
When comparing the weather in October to December, we see significant changes in temperature and precipitation. December experiences colder conditions with a minimum temperature of -6°C (22°F) and an average of 7°C (45°F), while October boasts a much milder minimum of 4°C (40°F) and an average of 16°C (61°F). Additionally, October has higher maximum temperatures, reaching up to 29°C (85°F) compared to December's maximum of 18°C (65°F). Precipitation is more frequent in December, with 83 mm (3.3 in) over 9 days, compared to October's 62 mm (2.5 in) over only 6 days. The humidity also differs, being higher in December at 87% versus 76% in October. For more detailed information about October weather, visit Thessaloniki weather in October.
When comparing the weather in December to that of November, several notable differences emerge. December typically experiences cooler temperatures, with minimums dropping to -6°C (22°F) and an average of 7°C (45°F), compared to November's milder conditions that feature a minimum of -2°C (28°F) and an average of 12°C (53°F). The maximum temperatures in December also peak at 18°C (65°F), significantly lower than November's 24°C (76°F). Precipitation levels are relatively similar, with December receiving 83 mm (3.3 in) over 9 days, slightly more than November’s 80 mm (3.2 in) across 10 days. Humidity levels also rise modestly in December to 87%, compared to 85% in November. For more detailed insights, check Thessaloniki weather in November.
As December unfolds in Thessaloniki, the city's weather takes a distinct turn, making this month stand out from the rest of the year. With daytime temperatures dipping notably and frequent rainfall, the atmosphere becomes more cozy yet inviting for those who appreciate a brisk winter ambiance. The higher humidity levels add to the chill, while occasional sunny spells remind residents of the warmth to come. This blend of cool temperatures and increased precipitation encourages both locals and visitors to enjoy the city's vibrant indoor scenes while still embracing the beauty of its winter landscape. For a more detailed overview of what to expect throughout the year, check out the full Thessaloniki Climate guide.