January Weather in Piraeus, Greece

Last updated: February 6, 2025

In January, Piraeus experiences a diverse range of weather conditions, with temperatures fluctuating from a chilly minimum of -4°C (25°F) to a pleasant maximum of 22°C (72°F). The average temperature settles around 9°C (48°F), making it a cooler month to explore the city. Rainfall is present, with a total precipitation of 57 mm (2.2 in) over approximately 7 days, contributing to the 76% humidity that defines this period. While January may not be the warmest month, it offers a unique charm for visitors seeking a quieter experience in the coastal city.

January Temperature in Piraeus

In Piraeus, Greece, January marks the heart of winter, with temperatures showcasing a significant range that reflects the season's chill. The month begins with a minimum of -4°C (25°F), hinting at cold nights, while the average temperature of 9°C (48°F) offers a mild respite during the day. On sunny days, residents can enjoy highs reaching up to 22°C (72°F), providing a delightful contrast to the crisp air. As the month progresses into February, a gradual warming trend becomes evident, with temperatures consistently rising and an overall inviting ambiance settling in. This transition hints at the early stirrings of spring, setting the stage for a welcoming shift in Piraeus's climate as winter gives way to more temperate conditions.

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

The chart illustrates January 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.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Piraeus

In Piraeus, Greece, January marks the beginning of the year with a notable precipitation amount of 57 mm (2.2 in), making it one of the rainier months. Typically, the month experiences about 7 days of rainfall, setting a distinctly wet tone that contrasts with the dry summer months. Following January, precipitation begins to taper off, with February bringing a slight decrease to 48 mm (1.9 in), while March dips further to 39 mm (1.5 in). As the year progresses into summer, Piraeus sees a dramatic reduction in rainfall, with July and August receiving only 9 mm (0.4 in) and 4 mm (0.2 in), respectively. This trend highlights a clear pattern: winter welcomes wetter conditions, while summer embraces arid warmth, characterizing the Mediterranean climate that defines this coastal gem.

January Precipitation Trends in Piraeus

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

In January, Piraeus, Greece experiences a humidity level of 76%, setting the tone for a winter characterized by consistent moisture in the air. This figure slightly decreases to 75% in February and 74% in March, suggesting a gradual transition into spring. Notably, humidity peaks again in May at 77%, indicating the beginning of summer's warmth. As the season progresses, a marked decline occurs, with July dipping to 68%, reaching its lowest point in August at 63%. However, as autumn approaches, humidity increases again, stabilizing at around 75% through November, and returning to 76% in December. This cyclical pattern highlights Piraeus's maritime climate, characterized by its notable humidity fluctuations throughout the year.

January Average Humidity in Piraeus

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

January UV Index in Piraeus

In January, Piraeus, Greece, experiences a moderate UV Index of 3, indicating a burn time of approximately 30 minutes for fair-skinned individuals. This sets the tone for a gradual increase in UV exposure as the year progresses. By February, the UV Index rises slightly to 4, maintaining the moderate category, while March sees a more significant jump to 6, marking the beginning of a high exposure risk. The trend continues upward through the spring and summer months, peaking at a very high 10 from May to August, where the burn time dramatically shortens to just 15 minutes. As September rolls in, the UV Index retreats slightly to 8, but remains in the very high category, before it gradually declines to 4 in November and returns to 3 by December, highlighting a seasonal pattern of increasing sun intensity followed by a notable decrease. For more detailed information, visit Piraeus UV Index.

Maximum UV Index Levels in Piraeus for January

The chart shows the monthly maximum UV Index (UVI) for Piraeus in January, 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 January 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.

January Sunshine in Piraeus

In Piraeus, Greece, January sets the stage for a gradual increase in sunshine, starting the year with a modest 200 hours of bright skies. As the cold months give way to spring, February sees an uptick to 252 hours, and by March, the sun shines for 328 hours, hinting at the approaching warmth. The brilliance peaks in the summer months, with July basking in an impressive 423 hours of golden sunlight, before gently tapering off in August to 396 hours. The early autumn still offers plenty of light, with September and October maintaining a robust count of 346 and 313 hours, respectively. Even as winter approaches, the sun remains a comforting presence, providing 250 hours in December. This remarkable trend illustrates how Piraeus transitions from winter's chill to a vibrant and sun-soaked Mediterranean summer.

Monthly Sunshine Duration in Piraeus: January Highlighted

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

Chance of Sun in Piraeus During January

In Piraeus, Greece, January presents a moderate 45% chance of sunny weather, indicating that while sunny days are possible, they are not guaranteed. As we move into February, the prospects improve significantly to 58%, hinting at a gradual transition towards spring. March and April maintain a slight decline yet hover around the 55-57% mark, while May sees a notable increase to 70% as the Mediterranean climate begins to shine. By the time summer arrives, residents and visitors can expect a considerable boost in sunshine with 94% in

Percentage of Sunny Days in January in Piraeus

The chart illustrates the percentage of sunny days in Piraeus throughout the year, with January 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 January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Piraeus in January

In January, Piraeus, Greece, welcomes around 9 hours of daylight, hinting at the deeper winter days ahead. As the month transitions into February, the sun gradually reclaims its presence, extending daylight to 10 hours. The upward trend continues into March with 11 hours, signalling the arrival of spring and longer days. By April, daylight blossoms to 13 hours, with May following closely behind at 14 hours, marking the peak of bright, sunlit days. This lengthy duration persists through June, July, and August, where the city basks in an abundance of daylight. However, as summer wanes into September, daylight gently recedes to 12 hours, and the pattern of diminishing sunlit hours continues into October and November, returning to 10 hours. Finally, December mirrors January with the shortest daylight span of 9 hours, closing the seasonal cycle. This rhythmic ebb and flow of daylight showcases Piraeus's enchanting seasonal changes, inviting residents and visitors alike to relish each moment of sunshine throughout the year.

Average Daylight Hours in Piraeus for January

The chart illustrates the variation in daylight duration in Piraeus throughout the year, with January 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.

January Winds in Piraeus

In Piraeus, Greece, January welcomes a gentle breeze with an average wind speed of 3.2 m/s (7 mph), setting the tone for a relatively calm winter. As the months evolve, the wind begins to soften, reaching its lowest point in June with just 1.8 m/s (4 mph). However, the summer months see a resurgence, particularly in July where the winds pick up again to 3.1 m/s (7 mph). As the year transitions into fall, wind speeds stabilize around 3.0 m/s (7 mph) before December closes with a brisker 3.5 m/s (8 mph). This cyclical trend illustrates how the winter months spark mild winds, while late summer and early winter bring more invigorating gusts, creating a dynamic atmosphere in this coastal city.

Average January Wind Speed in Piraeus

The chart displays monthly wind speed patterns in Piraeus, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.2 m/s3.02.92.62.41.83.12.73.03.13.03.5
Data source: Piraeus January wind data, generated using information from the Copernicus Climate Change Service.

How January 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 January'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.

January and February exhibit relatively mild temperatures, with January experiencing a minimum of -4°C (25°F) and an average of 9°C (48°F), while February sees a slightly higher minimum of 0°C (32°F) and an average of 10°C (51°F). The maximum temperatures are fairly similar, with January reaching up to 22°C (72°F) and February peaking at 20°C (68°F). In terms of precipitation, January receives 57 mm (2.2 in) over 7 days, whereas February totals 48 mm (1.9 in) across 8 days, indicating a slightly drier month in February but with one additional rainy day. Both months maintain high humidity levels, with January at 76% and February slightly lower at 75%. For detailed information about February weather in Piraeus, visit Piraeus weather in February.

In January, temperatures in Piraeus range from a chilly minimum of -4°C (25°F) to a mild maximum of 22°C (72°F), with an average of 9°C (48°F). During this month, the area experiences around 57 mm (2.2 in) of precipitation, spread across 7 days, and the humidity levels are relatively high at 76%. In contrast, March brings milder weather, with minimum temperatures rising to 0°C (32°F) and maximums reaching 23°C (74°F), averaging 12°C (54°F). Precipitation decreases to 39 mm (1.5 in) over just 5 days, and humidity slightly drops to 74%. For more details on March's weather, you can check out Piraeus weather in March.

January and April demonstrate a notable shift in weather patterns. In January, temperatures range from a chilly minimum of -4°C (25°F) to a milder maximum of 22°C (72°F), with an average temperature of 9°C (48°F). The month sees about 57 mm (2.2 in) of precipitation over approximately 7 days, with humidity levels at 76%. In contrast, April offers a much warmer experience, with temperatures ranging from a comfortable minimum of 4°C (40°F) to a maximum of 29°C (85°F) and an average of 15°C (60°F). Precipitation decreases to 42 mm (1.6 in) over just 5 days and humidity remains slightly lower at 75%. For more detailed insights on April weather, check out Piraeus weather in April.

In January, the weather tends to be quite chilly, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 22°C (72°F) and an average of 9°C (48°F). The month sees about 57 mm (2.2 in) of precipitation spread over 7 days, paired with a humidity level of 76%. In contrast, May brings much warmer conditions, with temperatures starting at a minimum of 10°C (51°F) and soaring to a high of 36°C (97°F), averaging 21°C (70°F). Precipitation decreases significantly to 23 mm (0.9 in) over just 4 days, and humidity slightly rises to 77%. For more details on what to expect in May, check out Piraeus weather in May.

January and June present distinctly different weather patterns. In January, temperatures range from a chilly -4°C (25°F) as a minimum to a mild 22°C (72°F) as a maximum, with an average of 9°C (48°F). The month experiences substantial precipitation with 57 mm (2.2 inches) over 7 days and a relatively high humidity of 76%. In contrast, June boasts much warmer temperatures, with a minimum of 13°C (56°F) and a maximum soaring to 38°C (101°F), averaging around 25°C (77°F). Precipitation is less frequent in June, totaling 33 mm (1.3 inches) over just 5 days, and humidity is slightly lower at 71%. For more insights on the pleasant weather during this time, check out Piraeus weather in June.

The weather in January and July showcases a striking contrast. January sees temperatures ranging from a chilly -4°C (25°F) to a milder 22°C (72°F), with an average of around 9°C (48°F). It is characterized by higher humidity at 76%, and the month typically experiences 57 mm (2.2 in) of precipitation over 7 days. In contrast, July brings much warmer conditions, with temperatures varying from a comfortable 19°C (67°F) at night to a scorching maximum of 42°C (108°F), averaging around 28°C (83°F). The month is also much drier, receiving only 9 mm (0.4 in) of rain in just 2 days and featuring a lower humidity of 68%. For more information, you can check Piraeus weather in July.

In January, temperatures in Piraeus are quite chilly, with minimums dropping to -4°C (25°F) and average highs around 22°C (72°F). The month is relatively wet, experiencing 57 mm (2.2 in) of precipitation over approximately 7 days, coupled with high humidity at 76%. In stark contrast, August brings a warm and dry climate, with temperatures ranging from a minimum of 19°C (66°F) to soaring highs of 43°C (109°F). Remarkably, the month experiences only 4 mm (0.2 in) of precipitation and has zero rainy days, along with lower humidity at 63%. For more insights on August weather in Piraeus, check out Piraeus weather in August.

The weather in January features a chilly average temperature of 9°C (48°F), with minimums dipping as low as -4°C (25°F) and occasional maximums reaching 22°C (72°F). This month typically experiences about 57 mm (2.2 inches) of precipitation over 7 days, coupled with a relatively high humidity of 76%. In contrast, September brings much warmer conditions, characterized by a minimum temperature of 13°C (55°F) and an average high of 24°C (76°F), peaking at a scorching 37°C (98°F). Precipitation drops significantly to just 17 mm (0.7 inches) over 2 days, and humidity decreases to 65%. For a closer look at September's climate specifically, you can check out Piraeus weather in September.

In January, the weather is notably colder, with temperatures ranging from a chilly -4°C (25°F) at night to a comfortable 22°C (72°F) during the day, averaging around 9°C (48°F). The month also sees higher precipitation levels at 57 mm (2.2 in) over about 7 days, contributing to a humidity rate of 76%. In contrast, October brings milder conditions with a minimum temperature of 7°C (45°F) and a maximum of 31°C (89°F), averaging 19°C (66°F). Precipitation decreases to 30 mm (1.2 in) across just 4 days, and humidity is slightly lower at 72%. For more detailed weather insights, check Piraeus weather in October.

In comparing the weather of January and November, January tends to be colder, with minimum temperatures reaching as low as -4°C (25°F) and averaging around 9°C (48°F). In contrast, November features milder temperatures, with a minimum of 4°C (39°F) and an average of 15°C (59°F), peaking at 25°C (78°F). While both months experience seven days of precipitation, January sees slightly more rainfall at 57 mm (2.2 in), compared to November's 48 mm (1.9 in). Humidity levels remain similar, with January at 76% and November slightly lower at 75%. For more detailed insights, you can check Piraeus weather in November.

In January, the weather experiences a notable drop in minimum temperatures, reaching as low as -4°C (25°F), compared to December's milder minimum of 1°C (34°F). Both months have similar average temperatures, with January slightly cooler at 9°C (48°F) versus December's 11°C (53°F). While the maximum temperatures are comparable, with January peaking at 22°C (72°F) and December at 21°C (70°F), January tends to see less precipitation, measuring 57 mm (2.2 in) over 7 days compared to December's 66 mm (2.6 in) over 9 days. Humidity remains constant at 76% for both months, adding to the overall dampness during this winter period. For more detailed information, check out Piraeus weather in December.

Compare Piraeus's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Piraeus

January in Piraeus offers a refreshing contrast to the warmer, dryer months that follow. With a noticeable chill in the air and an average temperature of 9°C (48°F), this month is characterized by cooler days and nights that dip to minimums of -4°C (25°F), making it ideal for those who appreciate a brisk winter atmosphere. Precipitation, while relatively light at 57 mm (2.2 in), occurs over about a week, contributing to the lush greenery that thrives as spring approaches. The humidity remains at a healthy 76%, indicating that while rain is minimal, the air can feel quite damp. For those wanting to explore the vibrant streets of Piraeus without the sweltering heat, January provides a unique opportunity to experience the city’s charm under cooler conditions. To learn more about what to expect throughout the year, visit Piraeus Climate.