Last updated: August 21, 2025
January in Piraeus, Greece, presents a mild yet variable climate, where temperatures range from a maximum of 22°C (72°F) to a chilly minimum of -4°C (25°F), highlighting the season's potential for both warmth and cold. The average temperature hovers around 9°C (48°F), making it a perfect time for those who prefer cooler weather. While rain is relatively moderate, with a total precipitation of 57 mm (2.2 in) spanning across 7 rainy days, a humidity level of 76% adds a touch of dampness to the air, enhancing the crisp winter atmosphere of this bustling port city. Visitors should prepare for an engaging experience, mixing the refreshing chill with glimpses of sunshine.
In Piraeus, Greece, January experiences a notable chill, with temperatures ranging from a brisk -4°C (25°F) at night to a mild 22°C (72°F) during the day. The average temperature hovers around a comfortable 9°C (48°F), making it one of the cooler months of the year. As winter transitions into spring, February brings slightly warmer mornings and afternoons, yet the overall trend remains solidly in the lower range. This month typically showcases crisp days that gradually lead into the warmer temperatures of March, where the daily highs can reach 23°C (74°F). The transformation from winter to spring becomes increasingly evident as the days lengthen and the air warms, culminating in the vibrant and sunnier months ahead.
January marks the start of the year in Piraeus, Greece, with an average precipitation of 57 mm (2.2 in) spread across approximately 7 rainy days. This sets a wetter tone compared to the subsequent months, particularly when contrasted with February's 48 mm (1.9 in) and March's 39 mm (1.5 in). As the seasons progress into spring, rainfall begins to dwindle—April witnesses a slight uptick before plummeting to just 23 mm (0.9 in) in May, leading into the dry summer months where July and August see minimal precipitation. Notably, January's precipitation prepares the region for the drier months ahead, establishing a rhythm between wetter and drier periods that characterizes the Mediterranean climate.
In January, Piraeus, Greece experiences a humidity level of 76%, setting the stage for a relatively moist winter month. As the year progresses, humidity levels gradually decline, reaching their lowest point in August at 63%. Following the summer, humidity begins to rise again in the fall and winter months, stabilizing at 75% in both November and February. This consistent pattern illustrates a typical Mediterranean climate, where humidity fluctuates throughout the year, peaking during the cooler months. Overall, January's high humidity reflects the seasonal cycle, creating a refreshing atmosphere that hints at the forthcoming spring.
In January, Piraeus experiences a moderate UV Index of 3, signifying a cautious approach to sun exposure is advised, with a burn time of 30 minutes for fair-skinned individuals. As winter fades, the UV Index rises to 4 in February, maintaining the moderate category and encouraging similar precautions. However, as spring approaches in March, the Index jumps to 6, veering into the high exposure category with a reduced burn time of 25 minutes. This trend of increasing UV levels continues into April and May, reaching a peak of 10 during the summer months, where the extremely high exposure significantly shortens burn time to just 15 minutes. Following this, a gradual decline occurs from September, reflecting the sunny season's end, yet the intensity remains notably high at 8 in September and 7 in October. As the year draws to a close, both November and December revert to a moderate UV Index of 4 and 3, respectively, marking a return to safer sun exposure guidelines. For more detailed insights on monthly UV levels and safety tips, visit Piraeus UV Index.
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In Piraeus, Greece, January greets the new year with a modest 200 hours of sunshine, setting the stage for a gradual increase in radiant days. As February rolls in, sunshine hours rise to 252, hinting at the promise of warmer months ahead. March and April witness more significant growth, with the sun shining 328 and 346 hours, respectively, as spring blooms into life. May ushers in nearly 400 hours of bright days, while summer peaks in July with 423 hours of sunshine, offering the perfect backdrop for seaside adventures. Although August marks a slight decline to 396 hours, the sunny disposition continues through September and October, before the year winds down with 261 hours in November and 250 in December. This trend highlights Piraeus as a destination where sunshine flourishes, especially from spring through summer, making it ideal for those seeking warmth and beauty throughout the year.
In Piraeus, Greece, the likelihood of sunny weather in January stands at 45%, marking it as a month with moderate chances of sunshine compared to the rest of the year. As winter transitions into spring, the sunshine probabilities gradually increase, reaching 58% in February and peaking at 94% in the warm summer months of July and August. This trend highlights the gradual shift from the cooler, cloudier winter months to the vibrant, sun-drenched days of summer, indicating that while January may be less favorable for sun-seekers, brighter days are just around the corner.
In Piraeus, Greece, January ushers in approximately 9 hours of daylight, setting the stage for a gradual increase in sunlight as the year progresses. As February arrives, the days lengthen to 10 hours, hinting at the approaching spring. By March, daylight extends to 11 hours, and the trend continues with an impressive 13 hours in April. The peak occurs in May and June when daylight reaches a vibrant 14 hours, allowing for ample time to enjoy the outdoors. This abundance of sunlight begins to taper off in August with 13 hours, followed by a slow decline through the autumn months, reaching 11 hours in October and 10 hours in November. As the year draws to a close, daylight once again settles at 9 hours in December, mirroring the beginning of the year, while illustrating the cyclical nature of time in this beautiful coastal city.
In Piraeus, Greece, the January wind dances gently with an average speed of 3.2 m/s (7 mph), setting a brisk yet pleasant tone for the start of the year. As winter transitions into spring, a gradual decline in wind speed is observed, reaching its calmest in May at 2.4 m/s (5 mph). However, by July, the winds pick up again, hinting at the lively Mediterranean summer, reaching a peak of 3.1 m/s before tapering off once more in the cooler months. Interestingly, while January initiates the year with noteworthy breeziness, the trend reveals a seasonal ebb and flow, with the winds returning in force come December at 3.5 m/s (8 mph), perfectly encapsulating the shifting character of the seasons in this vibrant coastal city.
Weather in Piraeus varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Piraeus, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February present a slight contrast in weather conditions. January experiences a wider temperature range with minimums dipping to -4°C (25°F) and maximums reaching up to 22°C (72°F), resulting in an average temperature of 9°C (48°F). In comparison, February starts to warm up, with minimums around 0°C (32°F) and maximums reaching 20°C (68°F), giving it an average of 10°C (51°F). Precipitation levels are also notable; January records 57 mm (2.2 in) over 7 days, while February sees a decrease to 48 mm (1.9 in) over 8 days. Humidity remains relatively stable, hovering around 76% in January and slightly lower at 75% in February. For more insights on February weather, visit Piraeus weather in February.
In January, the weather typically experiences cooler temperatures, with minimums dropping to -4°C (25°F) and averages around 9°C (48°F), peaking at a maximum of 22°C (72°F). The month also sees higher precipitation levels of 57 mm (2.2 in) over about 7 days, along with a humidity level of 76%. In contrast, March brings a slight warming trend, with minimum temperatures rising to 0°C (32°F) and an average of 12°C (54°F), while the maximum remains similar at 23°C (74°F). Additionally, precipitation decreases to 39 mm (1.5 in) over just 5 days, accompanied by a slightly lower humidity of 74%. For more information on the weather during this month, you can check Piraeus weather in March.
January and April exhibit distinct differences in weather patterns. In January, temperatures range from a chilly -4°C (25°F) to a mild 22°C (72°F), with an average of 9°C (48°F), while April shows a warmer profile with temperatures varying from 4°C (40°F) to a warm 29°C (85°F) and an average of 15°C (60°F). January experiences more precipitation, totaling 57 mm (2.2 in) over 7 days, whereas April sees less rain at 42 mm (1.6 in) across 5 days. Humidity levels remain relatively similar, with January at 76% and April slightly lower at 75%. For more detailed information, check out Piraeus weather in April.
In January, temperatures in Piraeus range from a minimum of -4°C (25°F) to a maximum of 22°C (72°F), with an average of around 9°C (48°F). This month typically sees about 57 mm (2.2 in) of precipitation spread over 7 days, alongside a humidity level of 76%. In stark contrast, May brings significantly warmer weather, with temperatures ranging from a minimum of 10°C (51°F) to a scorching maximum of 36°C (97°F) and an average of 21°C (70°F). Precipitation is much lower in May at just 23 mm (0.9 in) over 4 days, while humidity remains slightly elevated at 77%. For more details on the weather in Piraeus during May, check out Piraeus weather in May.
In January, the weather is notably cooler, with temperatures ranging from a chilly -4°C (25°F) to a mild 22°C (72°F), and an average temperature of 9°C (48°F). The month sees around 57 mm (2.2 in) of precipitation over roughly 7 days, accompanied by a higher humidity level of 76%. In contrast, June brings much warmer conditions, with temperatures ranging from a minimum of 13°C (56°F) to a sweltering maximum of 38°C (101°F), and an average temperature of 25°C (77°F). Precipitation drops significantly to 33 mm (1.3 in) over just 5 days, and humidity decreases slightly to 71%. For more details on the warm weather during this month, visit Piraeus weather in June.
The comparison between January and July reveals a striking contrast in weather conditions. January experiences significantly cooler temperatures, with a minimum of -4°C (25°F) and an average of 9°C (48°F), while July boasts much warmer temperatures, ranging from a minimum of 19°C (67°F) to an average of 28°C (83°F) and peaking at a sweltering 42°C (108°F). Precipitation is more frequent in January, with 57 mm (2.2 in) falling over 7 days, compared to July's minimal 9 mm (0.4 in) over just 2 days. Despite the warm, drier summer, July maintains a lower humidity level of 68% compared to January's higher 76%. For more details on the warm July climate, check Piraeus weather in July.
January and August present stark contrasts in weather. In January, temperatures range from a chilly minimum of -4°C (25°F) to a pleasant average of 9°C (48°F), peaking at 22°C (72°F), while the month experiences 57 mm (2.2 in) of precipitation over 7 days, accompanied by a high humidity of 76%. In sharp contrast, August boasts significantly warmer temperatures, with minimums around 19°C (66°F) and an average of 28°C (83°F), soaring to a maximum of 43°C (109°F). Additionally, August is remarkably dry, receiving only 4 mm (0.2 in) of precipitation across the month and experiencing no rainy days, with humidity levels at a more comfortable 63%. For a more detailed look at the weather patterns, check out Piraeus weather in August.
January and September present notably different weather conditions. In January, temperatures range from a chilly -4°C (25°F) at night to a mild 22°C (72°F) during the day, with an average of around 9°C (48°F). The month sees about 57 mm (2.2 in) of precipitation over approximately 7 days and a humidity level of 76%, making it feel quite damp. In contrast, September enjoys much warmer temperatures, with nighttime lows of 13°C (55°F) and daytime highs soaring to 37°C (98°F), averaging 24°C (76°F). Precipitation is minimal, with only 17 mm (0.7 in) over 2 days and a lower humidity of 65%. This stark shift highlights the transition from winter's chill to late summer warmth. For more details, check out Piraeus weather in September.
January and October weather exhibit notable differences. In January, temperatures range from a chilly minimum of -4°C (25°F) to a maximum of 22°C (72°F), with an average of 9°C (48°F). The month experiences approximately 57 mm (2.2 in) of precipitation over about 7 days, coupled with a high humidity level of 76%. In contrast, October offers milder conditions, with temperatures ranging from a minimum of 7°C (45°F) to a warm maximum of 31°C (89°F) and an average temperature of 19°C (66°F). It is generally drier, with only 30 mm (1.2 in) of precipitation spread over 4 days and slightly lower humidity at 72%. For more details, you can visit Piraeus weather in October.
January and November present contrasting weather patterns. In January, temperatures range from a chilly minimum of -4°C (25°F) to a more pleasant maximum of 22°C (72°F), with an average temperature of 9°C (48°F). The month receives a total of 57 mm (2.2 in) of precipitation, spread across 7 days, accompanied by a high humidity level of 76%.
In contrast, November enjoys milder conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 25°C (78°F) and an average of 15°C (59°F). Precipitation decreases slightly to 48 mm (1.9 in), also over 7 days, maintaining a humidity level of 75%.
For more information on November's climate, check out Piraeus weather in November.
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 temperature of 9°C (48°F). The month experiences about 57 mm (2.2 inches) of precipitation over approximately 7 days, while humidity remains steady at 76%. Conversely, December exhibits slightly warmer conditions, with temperatures ranging from 1°C (34°F) to a maximum of 21°C (70°F) and an average of 11°C (53°F). However, it experiences more precipitation, totaling 66 mm (2.6 inches) over about 9 days, also maintaining a humidity level of 76%. For more detailed information, you can visit Piraeus weather in December.
In January, Piraeus experiences a unique blend of cool temperatures and increased precipitation, making it distinct from the warmer and drier summer months. While maximum temperatures can reach a pleasant 22°C (72°F), the average lows remind residents of winter, dipping to around 9°C (48°F). With about 57 mm (2.2 in) of rainfall over just seven days, the air tends to be quite humid at 76%, giving January its characteristic chill. This contrasts with the balmy and sun-soaked days of late spring and summer, providing a refreshing start to the year. For a deeper dive into the climate trends throughout the year, check out Piraeus Climate.