January Weather in Poros, Greece

Last updated: August 21, 2025

January in Poros, Greece offers a unique blend of mild temperatures and significant rainfall, providing a refreshing perspective on winter in the Mediterranean. With maximum temperatures reaching 19°C (66°F) and an average around 12°C (54°F), the island is cooler, yet comfortable for exploration. However, visitors should prepare for approximately 179 mm (7.1 in) of rain over 14 days, resulting in an 84% humidity, which creates a lush and vibrant landscape. Whether you're taking a leisurely stroll along the coastline or enjoying the scenic beauty, January's weather encapsulates the charm of this picturesque Greek island.

January Temperature in Poros

In January, Poros, Greece experiences a mild winter, with temperatures ranging from a cool 3°C (38°F) at night to a pleasant 19°C (66°F) during the day, averaging around 12°C (54°F). This gradual warming trend hints at the upcoming spring, as February sees a slight increase, with minimums of 4°C (40°F) and maximums of 17°C (63°F). By March, the temperatures stabilize, maintaining an average of 13°C (56°F), while still offering comfortable highs. As the months progress toward summer, the weather becomes increasingly inviting, with April marking a notable rise in temperatures, culminating in delightful days that reach up to 23°C (74°F). Overall, January serves as the bridge from the chill of winter to the warmth of spring, making it a charming time to explore this beautiful Greek isle.

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

The chart illustrates January temperature patterns in Poros, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Poros, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec545556596571767975696458
Data source: Temperature data for Poros 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 Poros

In January, Poros, Greece experiences its wettest month, recording a substantial 179 mm (7.1 in) of precipitation over about 14 days. This spike in rainfall is indicative of the region's winter climate, as it significantly outpaces February's 96 mm (3.8 in) and March's 63 mm (2.5 in). Following January's deluge, precipitation gradually declines into spring, with April receiving a mere 31 mm (1.2 in). Notably, the contrast between January's robust downpours and the drier summer months highlights the Mediterranean climate's seasonal variability. The trend of decreasing precipitation continues, reaching a low of just 5 mm (0.2 in) in August, before picking up again in the fall. This cyclical pattern of heavy winter rains followed by dry summer days shapes the lush landscapes and vibrant flora that characterize Poros.

January Precipitation Trends in Poros

The chart displays monthly precipitation patterns in Poros, 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. In Poros, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec179966331162313549121225204
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Poros

In January, Poros, Greece experiences a notably high humidity level of 84%, setting the stage for a damp and crisp winter atmosphere. As the months progress into February and March, humidity gradually declines to 78% and 75%, respectively, offering a slight reprieve. By April, the trend continues downward, reaching a more comfortable 70%, and sustaining this trend into May. The summer months see a significant drop, with June at 60%, followed by July and August, which boast even drier conditions with 56% and 47%, respectively. This decrease creates a pleasant, arid climate perfect for leisure and exploration. However, as autumn settles in, humidity levels begin to rise again, reaching 60% in September and climbing back to 80% by November, highlighting the interplay between the changing seasons. Ultimately, December closes the year with 83% humidity, reminiscent of January's moisture-laden start, signaling a return to winter's enveloping embrace.

January Average Humidity in Poros

This chart illustrates the average monthly humidity levels in Poros, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Poros is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%78%76%70%72%60%56%47%56%70%80%83%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Poros

In January, Poros, Greece, experiences a moderate UV Index of 3, where sun exposure is relatively safe, allowing for about 30 minutes before risking skin damage. As winter gives way to spring, February sees a slight increase to a UV Index of 4, maintaining the same recommended burn time. Come March, the intensity escalates to a high category with an index of 6, reducing the burn time to 25 minutes. This upward trend continues into April and May, where conditions become very high with indices of 8 and 9, respectively, and the burn time shrinks to just 15 minutes. Peak UV levels are observed from June to August, consistently hitting 10, urging caution with even shorter exposure times. In September, a slight retreat occurs with a drop back to 8, followed by a decrease in October to 6. The year rounds out with November and December returning to a moderate index of 4 and 3, offering a reprieve with burn times extending back to 30 minutes. For detailed monthly insights, check the Poros UV Index.

Maximum UV Index Levels in Poros for January

The chart shows the monthly maximum UV Index (UVI) for Poros 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. In January, the maximum UV index in Poros typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346891010108643
Data source: Poros 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 Poros

In Poros, Greece, January graces the island with a modest 209 hours of sunshine, setting the stage for a gradual upward trend as winter transitions into spring. By February, sunlight increases to 262 hours, hinting at the warmth to come. As spring arrives, March and April shine brighter, showcasing 334 and 349 hours of golden rays, respectively. The brilliance peaks in the summer months; by July, Poros basks in an impressive 422 hours of sunshine. Even as August cools slightly to 395 hours, the island enjoys a solid stretch of sun-soaked days. The days begin to shorten in autumn, with September still blessed by 347 hours, before the year tapers into the cooler months with 314 hours in October and 267 in November. Each month unfolds a narrative of beauty and light, culminating in an enchanting yearly cycle that invites both residents and travelers to bask in the charm of Poros.

Monthly Sunshine Duration in Poros: January Highlighted

The January sunshine duration represents the total number of hours Poros 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.
JanFebMarAprMayJunJulAugSepOctNovDec209h262h334h349h400h410h422h395h347h314h267h250h
Data source: Poros January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Poros During January

In January, Poros, Greece experiences a modest 34% chance of sunny weather, marking it as one of the year's less bright months. As the season transitions into February, the likelihood of sunshine nearly doubles to 64%, showcasing an upward trend as winter gives way to early spring. This gradual improvement continues into March and April, where the chances hover around 59% and 57%, respectively. By May, the weather becomes decidedly sunnier at 69%, paving the way for the onslaught of summer. The peak occurs in the height of summer from June to August, where the probability of sunshine skyrockets to an impressive 86% to 97%. This transition paints a vivid picture of Poros as a destination that blossoms into sunlight as winter fades, inviting visitors to bask in the brilliant sun that characterizes the rest of the year.

Percentage of Sunny Days in January in Poros

The chart illustrates the percentage of sunny days in Poros 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 Poros experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%64%59%57%69%86%97%95%74%54%34%53%
Data source: Poros January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Poros in January

In January, Poros, Greece, experiences about 9 hours of daylight, marking the shortest days of the year. As the month progresses into February, daylight increases to 10 hours, signaling the slow but steady return of the sun. This trend continues through March, where daylight extends to 11 hours, and April brings even more brightness with 13 hours of daylight. By May, residents and visitors can enjoy 14 hours of sunlight, a peak that remains consistent through June and July. As summer wanes, daylight gradually declines, with August offering 13 hours before slipping to 12 hours in September. The autumn months see a further reduction as October and November provide 11 and 10 hours, respectively, culminating in another return to 9 hours of daylight in December. This rhythmic cycle highlights the vibrant seasonal shifts in Poros, inviting both locals and travelers to savor each phase of sunlight.

Average Daylight Hours in Poros for January

The chart illustrates the variation in daylight duration in Poros 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 12m14h 14m14h 45m14h 29m13h 34m12h 23m11h 9m10h 5m9h 32m
Data source: Poros daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Poros

In Poros, Greece, January ushers in a brisk average wind speed of 8.6 m/s (19 mph), setting the tone for a lively start to the year. This winter peak stands in stark contrast to the milder winds of the following months, with February's average dipping to 5.6 m/s (13 mph) and continuing a gradual descent into spring. As the year transitions, the wind speeds remain relatively gentle, fluctuating between 4.1 m/s (9 mph) in June and 5.6 m/s (13 mph) by the end of the summer. Interestingly, a subtle resurgence occurs in the fall, culminating in October's increase to 6.3 m/s (14 mph) and November's 6.8 m/s (15 mph). Thus, January not only marks the windiest month but also illustrates a seasonal rhythm, where winds dance gracefully from brisk winter gales to the calm of summer and back again.

Average January Wind Speed in Poros

The chart displays monthly wind speed patterns in Poros, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.6 m/s5.65.25.55.14.14.74.44.46.36.87.1
Data source: Poros January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Poros Compares to Other Months

Weather in Poros varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Poros, focusing on differences in temperature, rainfall, humidity, and UV levels.

January and February show distinct differences in weather patterns. January features cooler temperatures with a minimum of 3°C (38°F) and an average of 12°C (54°F), while February slightly warms up with a minimum of 4°C (40°F) and an average of 13°C (55°F). Precipitation is notably higher in January, totaling 179 mm (7.1 in) over 14 days, compared to February's 96 mm (3.8 in) over just 10 days, resulting in a drier month. Furthermore, February experiences lower humidity at 78%, while January's humidity remains higher at 84%. For more detailed information, you can check Poros weather in February.

In January, the weather is cooler with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 19°C (66°F), accompanied by significant precipitation of 179 mm (7.1 in) over 14 days, resulting in a high humidity level of 84%. In contrast, March sees a slight increase in temperatures, with minimums at 6°C (44°F) and maximums at 17°C (63°F), while precipitation drops to 63 mm (2.5 in) over just 10 days, and humidity decreases to 75%. This makes March a more favorable month for outdoor activities compared to the wetter and cooler January. For more details on March weather, you can visit Poros weather in March.

In January, the weather is relatively cool, with average temperatures ranging from a minimum of 3°C (38°F) to a maximum of 19°C (66°F). The month is quite wet, experiencing substantial precipitation of 179 mm (7.1 in) over 14 days and maintaining a high humidity level of 84%. In contrast, April brings a noticeable shift in climate, with milder temperatures ranging from a minimum of 11°C (52°F) to a maximum of 23°C (74°F). This month is much drier, receiving only 31 mm (1.2 in) of rain across just 5 days and a lower humidity rate of 70%. For more specific details, you can check Poros weather in April.

In January, the weather is notably cooler, with temperatures ranging from a low of 3°C (38°F) to a high of 19°C (66°F), and an average temperature of 12°C (54°F). This month experiences significant rainfall, totaling 179 mm (7.1 in) over approximately 14 days, accompanied by high humidity at 84%. In contrast, May offers a much warmer climate, with temperatures starting at a minimum of 13°C (55°F) and reaching up to 24°C (75°F), averaging around 18°C (65°F). Precipitation decreases dramatically to just 16 mm (0.6 in) over 3 days, with humidity dropping to a more comfortable 72%. For more information on the weather in May, you can check Poros weather in May.

In January, temperatures are quite cool, ranging from a minimum of 3°C (38°F) to a maximum of 19°C (66°F), with an average of about 12°C (54°F). The month sees significant rainfall, totaling 179 mm (7.1 in) over 14 days, coupled with high humidity levels averaging 84%. In contrast, June offers a much warmer climate with temperatures that vary from a minimum of 16°C (62°F) to a maximum of 27°C (82°F), and an average temperature of 22°C (71°F). Rainfall is minimal, at just 23 mm (0.9 in), and precipitation occurs on only 2 days, with humidity dropping to a more comfortable 60%. For a deeper insight into what to expect, you can check out Poros weather in June.

January and July present starkly contrasting weather conditions. In January, the temperature ranges from a cool minimum of 3°C (38°F) to a comfortable average of 12°C (54°F), with a maximum of 19°C (66°F). The month experiences substantial precipitation, with 179 mm (7.1 in) of rain over 14 days, contributing to a high humidity level of 84%. In contrast, July boasts much warmer temperatures, with a minimum of 20°C (68°F) and an average of 24°C (76°F), peaking at a maximum of 28°C (83°F). Rainfall is minimal during this month, totaling just 13 mm (0.5 in) over one day, and humidity drops to a more pleasant 56%. For more details on July weather, check out Poros weather in July.

January and August present stark contrasts in weather. In January, temperatures range from a chilly 3°C (38°F) at night to a pleasant 19°C (66°F) during the day, accompanied by substantial precipitation of 179 mm fallen over 14 days and high humidity levels of 84%. In contrast, August is much warmer, with temperatures starting at a comfortable 23°C (73°F) and peaking at around 30°C (85°F). The weather in August is dry, with only 5 mm of precipitation falling on just one day and humidity dropping to 47%. For a closer look at the weather specifics, check out Poros weather in August.

January weather tends to be much cooler and wetter than September. During January, the temperatures range from a minimum of 3°C (38°F) to a maximum of 19°C (66°F), with an average of 12°C (54°F). The month sees significant precipitation, totaling 179 mm (7.1 in) over 14 days, and experiences high humidity levels at 84%. In contrast, September boasts considerably warmer temperatures, with a minimum of 18°C (64°F) and a maximum of 28°C (82°F), averaging 24°C (76°F). Rainfall is minimal in September, amounting to only 49 mm (1.9 in) over just 4 days, and the humidity drops to a more comfortable 56%. For more detailed information about September weather, you can visit Poros weather in September.

When comparing the weather in January and October, distinct differences emerge in temperature, precipitation, and humidity levels. January experiences cooler temperatures, with a minimum of 3°C (38°F) and an average of 12°C (54°F), while October enjoys milder conditions, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 26°C (79°F). Additionally, January sees significantly higher precipitation, totaling 179 mm (7.1 in) over about 14 days, compared to October's 121 mm (4.8 in) across just 8 days. The humidity level is also higher in January at 84%, whereas October's humidity sits at a more comfortable 70%. For more details about the weather in October, visit Poros weather in October.

In comparing the weather between January and November, we see distinct seasonal differences. January features cooler temperatures, with a minimum of 3°C (38°F) and an average of 12°C (54°F), whereas November enjoys milder conditions, presenting a minimum of 12°C (53°F) and an average of 18°C (64°F). Precipitation is relatively high in both months, but November receives more rainfall, totaling 225 mm (8.8 in) compared to January's 179 mm (7.1 in). Additionally, while January has a humidity level of 84%, November is slightly less humid at 80%. For a more detailed look at what to expect during this month, check out Poros weather in November.

In comparison to January, December experiences slightly milder temperatures, with minimums around 8°C (46°F) and average highs of 19°C (67°F), while January's temperatures range from a minimum of 3°C (38°F) to a similar maximum of 19°C (66°F). Precipitation is higher in December, totaling 204 mm (8.0 in) over 16 days, compared to January’s 179 mm (7.1 in) spread over 14 days, indicating a wetter start to the year. Humidity levels remain relatively consistent, with December at 83% and January slightly higher at 84%. For more insights into the weather during this month, visit Poros weather in December.

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Conclusion: What to Expect From January Weather in Poros

As January graces Poros with its cool temperatures, the island experiences a distinct change from the milder months preceding it. With average temperatures hovering around 12°C (54°F), this month marks a noticeable dip, inviting visitors to embrace a more layered wardrobe. Precipitation becomes a common feature, with approximately two weeks of rain contributing to the 84% humidity that envelops the landscape. The lush greenery that thrives during this time contrasts beautifully with the stillness of winter, creating a unique charm that sets January apart from the warmer, drier months. For a more detailed look at how Poros's weather varies throughout the year, check out Poros Climate.