Last updated: August 21, 2025
September in Delphi, Greece, offers a lovely blend of warm days and cool nights, making it a delightful time for exploration. With maximum temperatures reaching 32°C (89°F) and an average of 21°C (70°F), visitors can enjoy pleasant weather ideal for outdoor activities. Nights cool down to a refreshing 12°C (54°F), providing a comfortable atmosphere for evening strolls. Although precipitation is relatively low at 42 mm (1.7 in) over approximately 4 days, a touch of humidity at 56% adds to the freshness of the air. Overall, September's climate is perfect for soaking in the rich history and stunning landscapes of this ancient site.
As September blankets Delphi, Greece, a gentle transition from the heat of summer to the mildness of fall unfolds. With minimum temperatures averaging around 12°C (54°F) and a comfortable average high of 21°C (70°F), this month serves as a sweet spot for visitors seeking pleasant weather. The peaks warm up to a steamy 32°C (89°F), reminiscent of August's lingering warmth but with the promise of refreshing autumn breezes. This shift not only encourages outdoor adventures among the ancient ruins but also sets the stage for scenic hikes through the beautiful, sun-kissed landscapes, making September an ideal time to experience the rich history and natural splendor of Delphi.
In September, Delphi, Greece experiences a moderate shift in precipitation, receiving about 42 mm (1.7 in) of rain over four days. This marks a slight increase from the arid summer months of July and August, which averaged only 31 mm (1.2 in) and 22 mm (0.9 in) respectively. As the region transitions into autumn, September’s rainfall paves the way for a more balanced climate, positioning it alongside spring months like April and May, which also enjoy mild precipitation. As the days grow cooler and more humid, this gradual uptick reflects the start of a wetter season ahead, echoing the higher rainfall recorded in October and November.
As summer fades into autumn, September in Delphi, Greece, experiences a slight uptick in humidity, reaching 56%. This marks a subtle shift from the drier months of July and August, where levels dipped to 56% and 47%, respectively. The transition into fall starts to bring back some of the moisture lost during the peak of summer, yet it remains comfortably lower than the winter months, which see humidity levels soar back to 80% in November and 83% in December. Overall, September serves as a bridge, combining the remnants of summer's heat with the approaching coolness of autumn, offering a uniquely balanced atmosphere that is both refreshing and serene.
As September unfolds in Delphi, Greece, residents and visitors alike can expect a very high UV Index of 8, requiring caution during outdoor activities. This marks a slight decrease from the extreme highs of summer, where July and August reached a peak of 10. However, the burn time remains notably brief at just 15 minutes, emphasizing the need for sun protection despite the waning intensity of the sun. Overall, September's UV index reflects the transitional shift towards autumn, yet it still warrants vigilance, particularly for those new to the region. For more detailed data about UV levels, check out the Delphi UV Index.
UV Risk Categories
As summer wanes, September in Delphi, Greece offers a delightful transition, with 337 hours of sunshine gracing the month. This marks a gentle decline from the sun-soaked 416 hours of July, but still shines brightly compared to the earlier months of the year. The warmth of late summer lingers, inviting visitors to explore the historical ruins and breathtaking landscapes under golden rays. As the days grow shorter and cooler, the vibrant light of September serves as a perfect backdrop for leisure and discovery, showcasing that while summer is fading, its warmth remains embedded in the heart of Delphi.
As summer fades, September in Delphi, Greece, retains a promising 67% chance of sunny weather, making it a delightful time to visit. While the peak of summer boasts a remarkable 88% chance of sun in August, September remains bright and inviting, offering warm days ideal for exploration. The transition into autumn brings a slight dip, yet still maintains a higher potential for sunshine compared to months like January and November, which fall below 40%. This favorable weather allows travelers to relish the stunning landscapes and historical sites of Delphi under the golden sun, while enjoying the cooler temperatures that accompany the onset of fall.
As the warm days of summer begin to wane, September in Delphi, Greece greets visitors with a delightful blend of sunshine and manageable daylight, offering about 12 hours of brightness. This marks a subtle transition from the peak of summer, where June, July, and August bask in 14 hours of daylight, gradually tapering off to the softer glows of autumn. With daylight decreasing from 14 hours in August to 12 hours in September, this month captures a perfect balance—providing ample time to explore Delphi’s rich history and stunning landscapes. As daylight hours continue their gentle decline into the fall, the landscape transforms, inviting both locals and travelers to savor the lingering warmth before winter’s approach.
As summer transitions into fall, September in Delphi, Greece experiences a gentle shift in winds, with an average speed of 2.0 m/s (5 mph). This slight dip follows a peak in May, where breezes reach a lively 2.5 m/s (6 mph), providing a contrast to the more tranquil currents common in the later summer months. Throughout the year, wind speeds tend to hover around the 5 mph mark, maintaining a consistent character that is neither too brisk nor too calm. The overall trend reveals a gradual cooling as the seasons change, setting a serene atmosphere perfect for exploring the historical gems Delphi has to offer. As the days shorten, the soft winds bid farewell to summer's warmth, cradling visitors in a delightful embrace of autumn’s early whispers.
Weather in Delphi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Delphi, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present a stark contrast in weather conditions. In September, temperatures range from a mild 12°C (54°F) at night to a warm average of 21°C (70°F), peaking at a hot 32°C (89°F) during the day. The month sees relatively low precipitation of 42 mm (1.7 in) over just 4 days, accompanied by a moderate humidity level of 56%. In contrast, January experiences much colder temperatures, with a minimum of -6°C (21°F) and an average of only 6°C (43°F), reaching a maximum of 18°C (65°F). This winter month also receives more rainfall at 92 mm (3.6 in) spread over 11 days, with humidity levels rising to 84%. For a deeper insight into January conditions, you can visit Delphi weather in January.
September and February present two contrasting weather patterns. In September, temperatures range from a pleasant 12°C (54°F) at night to a warm 32°C (89°F) during the day, with an average of 21°C (70°F) and relatively low precipitation of 42 mm (1.7 in) spread over about 4 days. Humidity sits at a comfortable 56%, making it an ideal time for outdoor activities.
In stark contrast, February experiences much colder weather, with temperatures dropping to a minimum of -6°C (22°F) and averaging only 8°C (46°F), peaking at 18°C (64°F). Precipitation increases significantly to 77 mm (3.0 in) over 11 days, accompanied by higher humidity at 78%. This shift creates a much chillier and wetter environment. To delve deeper into the weather specifics, check out Delphi weather in February.
In September, the weather is typically warm with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 32°C (89°F), averaging around 21°C (70°F). The month sees relatively low precipitation, with about 42 mm (1.7 inches) over just 4 days, and humidity sits at a comfortable 56%. In contrast, March experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 20°C (68°F), averaging just 9°C (49°F). The precipitation increases significantly to 70 mm (2.8 inches) over 10 days, and humidity is higher at 75%. For more details on March weather, check out Delphi weather in March.
When comparing the weather in September and April, notable differences emerge in temperature and humidity. September boasts warmer temperatures, with a minimum of 12°C (54°F) and an average of 21°C (70°F), while April sees cooler conditions, starting at a minimum of 3°C (37°F) and averaging 13°C (55°F). Additionally, September experiences less precipitation, with only 42 mm (1.7 in) over four days, compared to April's 48 mm (1.9 in) spread over eight days. Humidity levels are also higher in April at 70%, compared to 56% in September. For more specifics on April's weather, you can explore Delphi weather in April.
In comparing the weather between September and May, September generally boasts warmer overall temperatures, with an average of 21°C (70°F) compared to May's average of 17°C (63°F). The maximum temperatures in both months are similar, reaching up to 32°C (89°F) in September and 31°C (88°F) in May. However, May tends to be wetter, with higher total precipitation of 49 mm (1.9 in) over 7 days, while September sees 42 mm (1.7 in) over just 4 days. Additionally, humidity levels are higher in May at 72% compared to 56% in September. For more details on May's weather, you can visit Delphi weather in May.
In comparing the weather of September and June, we find that both months have similar average temperatures at around 21°C (70°F) and maximum highs reaching 32°C (89°F in September and 90°F in June). However, September generally experiences a slightly higher minimum temperature of 12°C (54°F) compared to June's 11°C (52°F). Precipitation levels vary significantly; June sees about 63 mm (2.5 in) of rain over approximately 10 days, while September has lower precipitation at 42 mm (1.7 in) over just 4 days. Additionally, humidity levels are slightly lower in September at 56%, compared to 60% in June, contributing to a more comfortable feel as summer transitions to fall. For more detailed insights, you can visit Delphi weather in June.
In comparing the weather of September and July, we find that September features a minimum temperature of 12°C (54°F) and an average of 21°C (70°F), while July starts warmer with a minimum of 16°C (61°F) and an average of 24°C (76°F). Interestingly, both months experience the same number of rainy days—four—but September sees slightly more precipitation at 42 mm (1.7 in) compared to July's 31 mm (1.2 in). Humidity levels remain consistent at 56% for both months, contributing to a comfortable atmosphere. For a more detailed look at the temperature and climate during July, you can visit Delphi weather in July.
September offers a noticeable shift in weather compared to August. The average temperature drops from 25°C (76°F) in August to 21°C (70°F) in September, with September featuring a lower maximum of 32°C (89°F) compared to August's peak of 36°C (97°F). Additionally, September experiences slightly more precipitation at 42 mm (1.7 in) over four days, while August only sees 22 mm (0.9 in) during the same number of days. The humidity also increases in September to 56%, compared to 47% in August, contributing to a more comfortable, yet slightly more humid atmosphere. For more details on August weather, visit Delphi weather in August.
In September, the weather tends to be warmer, with average temperatures reaching 21°C (70°F) and maximums as high as 32°C (89°F). The month sees relatively low precipitation, accumulating to 42 mm (1.7 in) over just 4 days and a comfortable humidity level of 56%.
Conversely, October brings cooler temperatures, with an average of only 16°C (61°F) and maximums around 28°C (82°F). This fall month experiences a slight increase in rainfall, totaling 54 mm (2.1 in) over about 7 days, and humidity rises to 70%. For more detailed insights into October's weather, you can check Delphi weather in October.
In September, the weather is generally warm and pleasant, with average temperatures reaching up to 21°C (70°F) and maximums soaring to 32°C (89°F). Humidity levels are moderate at 56%, and precipitation is relatively low, totaling 42 mm (1.7 in) over just 4 days. In contrast, November sees a significant drop in temperatures, with averages dropping to 12°C (54°F) and maximums only reaching 23°C (73°F). The month is much wetter, accumulating 77 mm (3.0 in) of rain over 11 days, and humidity rises to 80%. For more detailed insights, you can check Delphi weather in November.
September temperatures are significantly warmer than December, with minimums averaging 12°C (54°F) and peaks reaching 32°C (89°F) compared to December’s cooler range of -2°C (29°F) to 16°C (62°F). Additionally, December experiences much higher precipitation, with 98 mm (3.9 in) spread over 13 days, in contrast to September's 42 mm (1.7 in) falling over just 4 days. The humidity level also rises in December to 83%, compared to September’s more moderate 56%. For more details, you can check out Delphi weather in December.
As September unfolds in Delphi, the weather offers a delightful transition from the heat of summer, with average temperatures hovering around 21°C (70°F) and maximums reaching up to 32°C (89°F). While warm days still linger, the evenings bring a refreshing respite, with lows dipping to around 12°C (54°F). This month also ushers in a slight increase in cloud cover and a few rainy days, totaling 42 mm (1.7 in) over just 4 days of precipitation, making it a notably drier month compared to the downpours of late autumn. With humidity at 56%, September serves as a perfect bridge to autumn, inviting visitors to indulge in outdoor adventures. For a deeper dive into what makes Delphi's climate unique, explore Delphi Climate.