December Weather in Piraeus, Greece

Last updated: February 6, 2025

In December, Piraeus experiences a mild Mediterranean climate, characterized by a maximum temperature reaching up to 21°C (70°F) and an average of 11°C (53°F). Nights can be notably cooler, with temperatures dipping to a minimum of 1°C (34°F). The month sees approximately 66 mm (2.6 in) of precipitation spread over 9 days, contributing to a relatively high humidity level of 76%. As winter approaches, visitors to this vibrant port city can anticipate a mix of refreshing, cooler days and the occasional rain, perfect for enjoying the rich local culture while wrapped in cozy layers.

December Temperature in Piraeus

In Piraeus, Greece, December brings a subtle transition as temperatures begin to cool, setting a tranquil backdrop for the holiday season. With minimums hovering around 1°C (34°F) and averages settling at about 11°C (53°F), the weather is brisk yet manageable, allowing for pleasant outdoor explorations. The maximum temperatures can reach up to 21°C (70°F), offering a temperate reprieve from the winter chill. As the year draws to a close, the overall trend shows a gentle descent from the warmth of summer, while still maintaining a relatively mild climate compared to other regions. This blend of cool days and mild afternoons creates an inviting atmosphere, perfect for leisurely strolls along the waterfront or enjoying the festive spirit in local squares.

December Weather in Piraeus: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Piraeus, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec485154606977838376665952
Data source: Temperature data for Piraeus generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Piraeus

December in Piraeus, Greece, marks a notable shift in the city's precipitation patterns as it welcomes the highest rainfall of the year at 66 mm (2.6 in), spread over 9 days. This surge in precipitation reflects a transition from the drier summer months, particularly July and August, which recorded minimal rainfall. As the year draws to a close, the city experiences more frequent rainy days, comparable to January and November, but with a standout increase in volume. This trend highlights a shift from the relatively dry late autumn months, suggesting that December serves as a precursor to the wetter winter season in the region. The increase in precipitation not only revitalizes the landscape but also sets the stage for the lush growth that follows in the months ahead.

December Precipitation Trends in Piraeus

The chart displays monthly precipitation patterns in Piraeus, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5748394223339417304866
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Piraeus

In Piraeus, Greece, the December climate sees humidity levels return to a comfortable 76%, echoing the higher figures often recorded earlier in the year. As we progress from the winter months of January and February, which maintain slightly elevated humidity at 76% and 75% respectively, we observe a gradual decline through the summer, with July reaching its lowest point at 68%. However, as autumn approaches, humidity creeps back up, peaking in May at 77%, before settling back to levels reminiscent of early winter. This cyclical trend underscores Piraeus's climatic rhythm, where the air feels more humid during colder months, creating a unique, refreshing atmosphere as December sets in.

December Average Humidity in Piraeus

This chart illustrates the average monthly humidity levels in Piraeus, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%77%72%68%63%65%72%75%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Piraeus

In December, Piraeus experiences a moderate UV Index of 3, with a burn time of 30 minutes. This marks a notable decline from the peak summer months, where the index soared to 10, necessitating only a swift 15-minute exposure before sunburn risks surged. As the year winds down, residents and visitors can enjoy milder sun conditions similar to those found in the early winter months of January and February. The trend shows a gradual decrease in UV exposure from late spring through winter, highlighting December as a safer time for outdoor activities without excessive sun protection concerns. For more details, check the Piraeus UV Index.

Maximum UV Index Levels in Piraeus for December

The chart shows the monthly maximum UV Index (UVI) for Piraeus in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3468101010108743
Data source: Piraeus December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Piraeus

In Piraeus, Greece, December welcomes a gentle respite from the vibrant summer months, with 250 hours of sunlight gracing the shores. As the year comes to a close, there's a clear trend of diminishing daylight hours compared to the sun-drenched peaks of July, which boasts an impressive 423 hours. The warmth of the Greek sun remains a cherished companion through December, echoing the previous month’s 261 hours. As locals and visitors alike embrace the cozy winter atmosphere, it’s a reminder of the seasonal ebb and flow that characterizes this beautiful coastal city, where even in the cooler months, moments of golden sunlight still paint the landscape.

Monthly Sunshine Duration in Piraeus: December Highlighted

The December sunshine duration represents the total number of hours Piraeus experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec200h252h328h346h398h409h423h396h346h313h261h250h
Data source: Piraeus December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Piraeus During December

While December in Piraeus, Greece, experiences a 51% chance of sunny weather, it reflects a transition from the more abundant sunshine seen in the summer months, where chances soar above 90% in July and August. As the year progresses, the probability of sunshine tends to decline, reaching its lowest point in November at 40%. However, December offers a moderate chance of sunny days compared to the earlier months, particularly when considering the overall trend of increasing sunshine from the darker winter months to the brighter spring and summer. This balance makes December a time where residents and visitors alike can still enjoy occasional sunny moments amid the cooler, more unpredictable winter weather.

Percentage of Sunny Days in December in Piraeus

The chart illustrates the percentage of sunny days in Piraeus throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Piraeus experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec45%58%57%55%70%71%94%95%77%57%40%51%
Data source: Piraeus December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Piraeus in December

In Piraeus, Greece, the daylight duration follows a discernible rhythm throughout the year, peaking in the warmer months. Starting with December, the city experiences just 9 hours of daylight, a stark contrast to the sun-drenched May and June, where daylight extends to 14 hours. As winter deepens, January and February offer slightly more daylight, gradually building towards spring. From March onwards, the trend reverses, ushering in longer days as the sun lingers through the evening. This transition culminates in April, when daylight stretches to a refreshing 13 hours, before beginning its slow descent once again in the autumn months. This gradual ebb and flow of daylight not only highlights the changing seasons but also invites residents and visitors to cherish the fleeting moments of sunshine throughout the year.

Average Daylight Hours in Piraeus for December

The chart illustrates the variation in daylight duration in Piraeus throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 50m10h 46m11h 58m13h 11m14h 14m14h 44m14h 28m13h 33m12h 23m11h 10m10h 6m9h 33m
Data source: Piraeus daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Piraeus

As December arrives in Piraeus, Greece, a noticeable shift in the average wind speed sets the month apart from the rest of the year. With an average of 3.5 m/s (8 mph), December experiences the strongest winds since June, providing a brisk invitation to coastal strolls and outdoor adventures. This increase follows a gentle decline from the spring months, where wind speeds hovered around 2.4 to 2.9 m/s. In contrast to the calmer summer breezes, December’s winds remind us of the shifting seasons and invigorate the air with a refreshing chill. The fluctuating patterns throughout the year highlight Piraeus' dynamic weather, making December not only a month of festivity but also one marked by a lively maritime atmosphere.

Average December Wind Speed in Piraeus

The chart displays monthly wind speed patterns in Piraeus, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.23.02.92.62.41.83.12.73.03.13.03.5 m/s
Data source: Piraeus December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Piraeus Compares to Other Months

The weather in Piraeus changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Piraeus and find detailed weather information for every month.

December and January exhibit notable differences in temperature while maintaining similar humidity levels. In December, temperatures range from a minimum of 1°C (34°F) to a maximum of 21°C (70°F), with an average of 11°C (53°F). The month experiences 66 mm (2.6 in) of precipitation over 9 days. In contrast, January sees colder temperatures, with a minimum of -4°C (25°F) and an average of 9°C (48°F), while the maximum reaches 22°C (72°F). The precipitation decreases to 57 mm (2.2 in) over just 7 days. Despite these changes, both months maintain a humidity level of 76%. For more details on the weather in January, you can check Piraeus weather in January.

In December, the weather features a minimum temperature of 1°C (34°F) and an average of 11°C (53°F), reaching a maximum of 21°C (70°F), with total precipitation of 66 mm (2.6 in) over 9 days. The humidity level is relatively high at 76%. In contrast, February sees slightly cooler conditions, with a minimum temperature of 0°C (32°F) and an average of 10°C (51°F), peaking at 20°C (68°F). Precipitation decreases to 48 mm (1.9 in) over 8 days, while humidity remains comparable at 75%. For more details, visit Piraeus weather in February.

In December, the weather tends to be milder with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 21°C (70°F), accompanied by an average temperature of 11°C (53°F). The month sees about 66 mm (2.6 in) of precipitation over 9 days, and the humidity is relatively high at 76%. In contrast, March features slightly cooler temperatures, with a minimum of 0°C (32°F), an average of 12°C (54°F), and a maximum of 23°C (74°F). Precipitation decreases to 39 mm (1.5 in) over just 5 days, and humidity levels drop marginally to 74%. For more detailed insights pertaining to March weather, check out Piraeus weather in March.

In December, the weather in Piraeus is characterized by cooler temperatures, with a minimum of 1°C (34°F) and an average of 11°C (53°F), peaking at a maximum of 21°C (70°F). There are approximately 66 mm (2.6 in) of precipitation over 9 days, coupled with a relatively high humidity of 76%. In contrast, April brings milder conditions, with temperatures ranging from a minimum of 4°C (40°F) to an average of 15°C (60°F), and highs reaching 29°C (85°F). Precipitation decreases to about 42 mm (1.6 in) over only 5 days, while humidity remains similar at 75%. For more insights into April's weather, check out Piraeus weather in April.

In December, the weather is notably cooler, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 21°C (70°F), and an average temperature of around 11°C (53°F). The month sees about 66 mm (2.6 in) of precipitation over 9 days, accompanied by a humidity level of 76%. In contrast, May presents significantly warmer conditions, with temperatures varying from a minimum of 10°C (51°F) to a peak of 36°C (97°F), averaging 21°C (70°F). Precipitation in May drops to just 23 mm (0.9 in) over only 4 days, while humidity remains quite similar at 77%. This stark difference highlights the transition from a cool, damp winter month to a warm, drier spring month. For more details on the weather in May, check out Piraeus weather in May.

December and June exhibit strikingly different weather patterns. In December, temperatures range from a chilly minimum of 1°C (34°F) to a comfortable maximum of 21°C (70°F), with an average temperature of 11°C (53°F). The month typically experiences about 66 mm (2.6 in) of precipitation over 9 days, accompanied by a humidity level of 76%. In contrast, June boasts significantly warmer temperatures, with a minimum of 13°C (56°F) and highs reaching up to 38°C (101°F), averaging 25°C (77°F). The rainfall decreases to 33 mm (1.3 in) spread over just 5 days, and humidity drops slightly to 71%. To explore more about the weather in June, visit Piraeus weather in June.

The weather in December presents a stark contrast to July, with average temperatures ranging from a chilly 1°C (34°F) at night to a comfortable 21°C (70°F) during the day, while July boasts significantly warmer temperatures, with minimums of 19°C (67°F) and highs reaching up to a sweltering 42°C (108°F). December experiences more frequent precipitation, averaging 66 mm (2.6 in) over about 9 days, compared to July's minimal 9 mm (0.4 in) spread across just 2 days. Additionally, December's humidity is higher at 76%, while July remains relatively lower at 68%. This highlights the distinctly different climates of the two months. For more details on July weather, you can visit Piraeus weather in July.

December and August present starkly contrasting weather conditions. In December, temperatures range from a chilly minimum of 1°C (34°F) to a mild average of 11°C (53°F), peaking at a comfortable 21°C (70°F). During this month, residents can expect about 66 mm (2.6 in) of precipitation over nine days, coupled with a higher humidity level of 76%. In contrast, August boasts much warmer temperatures, with a minimum of 19°C (66°F) and an average of 28°C (83°F), reaching a scorching maximum of 43°C (109°F). Precipitation during August is minimal, with just 4 mm (0.2 in) recorded over zero rainy days and lower humidity at 63%. Such differences make December a cooler, wetter month, while August is characterized by heat and dryness. For more details, see Piraeus weather in August.

December weather is notably cooler than September, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 21°C (70°F), while September boasts a much warmer average, fluctuating between 13°C (55°F) at its lowest and hitting highs of 37°C (98°F). Additionally, December experiences significantly more rainfall, accumulating 66 mm (2.6 in) over approximately 9 days, compared to September's modest 17 mm (0.7 in) across just 2 days. Humidity levels are also higher in December at 76%, contrasted with September's 65%. For additional insights on September weather, check out Piraeus weather in September.

In comparing the weather between October and December, December tends to be cooler and wetter. The average temperature in December is around 11°C (53°F), with minimums dipping to 1°C (34°F) and maximums reaching 21°C (70°F). In contrast, October enjoys warmer conditions, with an average temperature of 19°C (66°F), minimums of 7°C (45°F), and highs of 31°C (89°F). Additionally, December experiences more rainfall, with 66 mm (2.6 in) of precipitation over 9 days, while October has a drier climate with only 30 mm (1.2 in) on 4 days. The humidity in December is slightly higher at 76%, compared to October's 72%. For more details on October weather in Piraeus, you can check Piraeus weather in October.

In comparing the weather between December and November, December experiences slightly lower temperatures, with a minimum of 1°C (34°F) and an average of 11°C (53°F), while November's temperatures range from a minimum of 4°C (39°F) to an average of 15°C (59°F). Furthermore, December sees a maximum temperature of 21°C (70°F), which is notably cooler than November's maximum of 25°C (78°F). Precipitation increases in December, totaling 66 mm (2.6 in) over 9 days, compared to November's 48 mm (1.9 in) over 7 days. The humidity remains quite similar, with December at 76% and November slightly lower at 75%. For more detailed information, you can check out Piraeus weather in November.

Compare Piraeus's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Piraeus

As December settles in Piraeus, the coastal city begins to experience a noticeable shift in weather compared to the milder months leading up to it. Temperatures cool down significantly, with a distinct chill in the air, warming only to a maximum of 21°C (70°F) during the day, while nights can drop to a brisk 1°C (34°F). This month also sees an increase in precipitation, with nearly a third of the month experiencing light rainfall, contributing to a higher humidity level. The blend of cooler conditions and occasional wet days creates a cozy atmosphere, making December a unique time to explore the city. For a deeper understanding of the city's climate, visit Piraeus Climate.