Last updated: February 6, 2025
In September, Poros experiences a delightful transition as temperatures reach a maximum of 32°C (91°F) and settle to an average of 25°C (77°F). Nights cool down to a minimum of 18°C (65°F), making evenings pleasantly comfortable. With only 30 mm (1.2 in) of rainfall over just 2 days, outdoor activities remain largely uninterrupted. The humidity rests at a moderate 65%, adding a touch of warmth to the gentle sea breezes. Overall, September in Poros offers a charming blend of warmth and refreshing coastal air, perfect for exploration and relaxation.
As summer transitions to fall, September in Poros, Greece offers a delightful climate that strikes a balance between warmth and comfort. The temperatures range from a mild 18°C (65°F) at night to a pleasant 32°C (91°F) during the day, with an inviting average of 25°C (77°F). This month marks a gentle decline from the peak summer heat, making it an ideal time for outdoor activities and leisurely strolls along the coast. The noteworthy drop in minimum temperatures compared to the sweltering heat of July and August invites travelers to relish the idyllic Mediterranean atmosphere without the overwhelming heat. Overall, September is a splendid time to visit Poros, where sunshine and warm breezes grace the island, perfect for enjoying its stunning natural beauty and vibrant culture.
In September, Poros, Greece experiences a notably moderate shift in precipitation, with 30 mm (1.2 in) of rainfall spread across 2 days. This increase marks a refreshing transition from the arid summer months of July and August, which often see little to no rainfall. As the warm season wanes, September sets the stage for a gradual rise in moisture levels, paving the way for the wetter months ahead. Overall, this period signals the onset of autumn, highlighting a significant uptick from the dry heat, as the island prepares to embrace the lush landscapes that follow in the coming months.
In September, humidity in Poros, Greece starts to rise slightly after the summer's drier months, settling at around 65%. This marks a transition from the lower humidity levels experienced in July and August, where averages dipped to 68% and 63% respectively. As the air becomes a bit more saturated heading into autumn, September offers a refreshing contrast to the heat of summer, while still remaining relatively comfortable compared to the wetter months that follow. This gradual uptick hints at an impending shift in the seasonal atmosphere, leading into October's increase to 72%, as the vibrant colors of fall begin to envelop the island.
As September rolls around in Poros, Greece, the UV Index remains high, with a value of 8 that places it in the very high exposure category. This signals that while summer's intense sun intensity begins to wane, there’s still significant risk of skin damage after just 15 minutes of unprotected sun exposure. The trend in UV Index levels shows a gradual decline from the peak values of 10 reached in the summer months of June through August. However, caution is still advised as the sun continues to shine bright. For those enjoying the early autumn sun, it's essential to stay protected. For more information, refer to the detailed Poros UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Poros, Greece continues to bask in the glow of abundant sunshine, clocking in 346 hours of bright daylight. This month reflects a gentle decline from the peak of 422 hours in July, yet it remains significantly sun-kissed compared to earlier months. With an average of over 400 hours of sunshine from May through August, September offers a splendid balance—ideal for those seeking pleasant weather without the summer crowds. This delightful climatic shift highlights Poros as a perfect early autumn retreat, where visitors can still embrace the warmth and beauty of the Mediterranean sun.
As summer fades, September in Poros, Greece, offers a delightful blend of warmth and sunshine, boasting an 80% chance of sunny weather. Following the peak of August, with its impressive 97% likelihood of clear skies, September maintains a generous amount of sunshine as the island transitions into autumn. The sustained warmth from the summer months continues to linger, creating an inviting atmosphere for visitors. This favorable weather trend not only makes September an ideal time for beachgoers but also for those looking to explore the stunning landscapes and rich culture of the island before the cooler months approach. With a reliable chance of sun, Poros remains an alluring destination for those seeking to soak up the late summer rays.
As September ushers in the transition from summer to autumn in Poros, Greece, daylight begins to gently wane, offering about 12 hours of sunlight. This marks a subtle decline from the sun-drenched days of summer, where July and August basked in a generous 14 hours of daylight. The gradual decrease that started in August continues this month, hinting at the cooler days ahead. This pattern reflects a steady rhythm of the seasons, with daylight peaking in late spring and summer before embarking on its seasonal descent, ultimately leading to the 9 hours of winter months. The shifts in daylight not only accentuate the beauty of the island but also invite a tranquil reflection as nature prepares for a cozy autumnal embrace.
As the summer sun begins to wane, September in Poros, Greece brings a gentle shift in the winds. With an average wind speed of 4.0 m/s (9 mph), this month marks a subtle increase from the languid summer breezes, offering just enough refreshing air to invigorate the island atmosphere. Following the relatively calm months of June and July, where winds hovered around 2.5 m/s to 3.6 m/s, September's breeze starts to hint at the approaching autumn. This trend continues into October, where wind speeds rise again, reaching 4.8 m/s (11 mph), suggesting that the island prepares for the brisker days ahead. Overall, September strikes a delightful balance, blending the warmth of summer with the anticipation of the autumnal transition.
The weather in Poros changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Poros and find detailed weather information for every month.
September and January present significantly different weather patterns. In September, temperatures are warm, ranging from a minimum of 18°C (65°F) to a maximum of 32°C (91°F), creating an average temperature of 25°C (77°F). Precipitation is relatively low, with only 30 mm (1.2 in) falling over about 2 days, alongside a humidity level of 65%. In contrast, January experiences much cooler conditions, with temperatures varying between 2°C (36°F) and 20°C (69°F), leading to an average of 12°C (53°F). The month sees higher precipitation totaling 52 mm (2.0 in) spread over approximately 7 days, and humidity rises to 76%. For more detailed insights into January weather, check out Poros weather in January.
September and February present strikingly different weather conditions. In September, temperatures are warmer, with minimums around 18°C (65°F) and highs reaching up to 32°C (91°F), resulting in an average temperature of 25°C (77°F). The month sees relatively low precipitation, with only 30 mm (1.2 in) spread over just 2 days and a humidity level of 65%. Conversely, February experiences much cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 18°C (65°F). It averages only 13°C (55°F) but has higher precipitation of 46 mm (1.8 in) over 7 days, combined with increased humidity at 75%. For more insights on February weather, check out Poros weather in February.
In September, the weather tends to be warmer with average temperatures around 25°C (77°F) and maximum highs reaching 32°C (91°F), while March experiences cooler temperatures, averaging just 13°C (56°F) and peaking at 20°C (68°F). Precipitation is relatively low in September, with only 30 mm (1.2 in) over 2 days, whereas March sees slightly more rain at 33 mm (1.3 in) spread across 4 days. Additionally, humidity is a bit lower in September at 65%, compared to 74% in March, making the latter feel a bit more damp. For a detailed look at March weather, you can visit Poros weather in March.
In September, the weather tends to be warmer and more consistent, with average temperatures ranging from a mild 25°C (77°F) to a high of 32°C (91°F), alongside a relatively low precipitation rate of 30 mm (1.2 in) over just two days. Humidity levels are around 65%, making it a pleasant month for outdoor activities. In contrast, April experiences cooler temperatures, with averages from 9°C (49°F) to 24°C (75°F). While it sees a slightly lower total precipitation of 27 mm (1.1 in), rain is more frequent, occurring over four days, and the humidity is higher at 75%. For those considering a visit in April, more detailed weather information can be found here: Poros weather in April.
In September, the weather tends to be warmer with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 32°C (91°F), averaging around 25°C (77°F). The month experiences slightly higher precipitation of 30 mm (1.2 in) over two days and a humidity level of 65%. In contrast, May offers a milder climate with temperatures between 14°C (57°F) and 27°C (81°F), averaging 20°C (68°F). It has less precipitation at 11 mm (0.5 in) over the same number of rainy days, but it features higher humidity at 77%. For more detailed information about May weather, check out Poros weather in May.
In comparing the weather of September and June, both months enjoy similar maximum temperatures, reaching up to 32°C (90°F to 91°F), but September tends to be slightly warmer overall with an average temperature of 25°C (77°F) compared to June's 24°C (75°F). Additionally, September experiences slightly higher humidity at 65%, while June is a bit more humid at 71%. In terms of precipitation, September sees a notable increase, with 30 mm (1.2 in) falling over 2 days, whereas June has only 12 mm (0.5 in) on the same number of days. For a detailed look at June weather specifics, you can check Poros weather in June.
When comparing the weather in September to July, it's notable that September sees slightly cooler temperatures, with a minimum of 18°C (65°F) and an average of 25°C (77°F), compared to July's warmer minimum of 22°C (71°F) and average of 27°C (81°F). The maximum temperature in September reaches 32°C (91°F), while July can climb to 34°C (94°F). Additionally, September experiences a bit more precipitation, averaging 30 mm (1.2 in) over 2 days, in contrast to July's lighter rains of just 5 mm (0.2 in) over a single day. Humidity levels are quite similar, with September at 65% and July at 68%. For more detailed information, you can check out Poros weather in July.
In September, the weather is generally milder compared to August, with average temperatures dropping from 28°C (82°F) in August to 25°C (77°F) in September. The maximum temperature also sees a decrease, peaking at 32°C (91°F) in September compared to 34°C (93°F) in August. Additionally, September experiences slightly more precipitation, receiving 30 mm (1.2 in) over 2 days, while August remains notably dry with only 6 mm (0.2 in) and no rainy days. Humidity levels are relatively similar, with September at 65% and August at 63%. For further details about August weather, you can check Poros weather in August.
September typically enjoys warmer temperatures, with averages around 25°C (77°F) and highs reaching 32°C (91°F), while October cools down slightly, featuring a lower average of 21°C (70°F) and maximums of 28°C (83°F). Both months experience minimal rainfall, but October sees a bit more precipitation spread over four days, compared to just two days in September. Additionally, humidity levels rise from 65% in September to 72% in October, giving the latter month a slightly more humid feel. For more specific details on October weather, you can check Poros weather in October.
In September, the weather is typically warm, with average temperatures around 25°C (77°F) and highs reaching up to 32°C (91°F). The month experiences relatively low precipitation, totaling 30 mm (1.2 in) over just 2 days, and the humidity hovers around 65%. In contrast, November brings cooler temperatures, with an average of 18°C (64°F) and maximums of 24°C (75°F). The month tends to be wetter, accumulating 47 mm (1.9 in) of rainfall over 7 days, along with a slight increase in humidity to 75%. For more detailed information, visit Poros weather in November.
September and December present contrasting weather patterns. In September, temperatures are significantly warmer, with a minimum of 18°C (65°F) and an average high of 32°C (91°F), creating a balmy environment. The month experiences only about 30 mm (1.2 in) of precipitation over just two days, paired with a humidity level of 65%. In stark contrast, December brings cooler weather with a minimum temperature of 7°C (45°F) and an average high of 20°C (69°F). Additionally, it sees a notable increase in precipitation, averaging 60 mm (2.4 in) spread across nine days, along with higher humidity at 76%. For more detailed weather information, check out Poros weather in December.
As September rolls in, Poros begins to transition from the sweltering summer heat to a more temperate climate, offering a delightful respite for visitors. With temperatures averaging around 25°C (77°F), the days remain pleasantly warm, while evenings become refreshingly cool. The low precipitation—only a couple of days of light rain—combined with humidity levels around 65%, creates a wonderfully comfortable atmosphere perfect for exploring the island's stunning landscapes. This month’s blend of warmth and mildness makes it a unique time to experience Poros, standing in contrast to the hotter, drier summer months. For a deeper dive into the climatic nuances of Poros, check out Poros Climate.