Last updated: August 21, 2025
September in Chios, Greece offers a delightful climate, with maximum temperatures reaching 30°C (86°F) and an average of 24°C (75°F). As the summer begins to wane, visitors can enjoy pleasantly warm days and cooler nights, with temperatures dipping to a minimum of 17°C (63°F). The month sees a modest precipitation of only 5 mm (0.2 in), typically confined to just one rainy day, allowing plenty of time for outdoor activities. Visitors can expect a comfortable humidity level of 56%, making it a perfect time to explore the island’s stunning landscapes and rich history.
As summer gracefully transitions into autumn, September in Chios, Greece presents a delightful blend of warmth and comfort. With minimum temperatures averaging 17°C (63°F) and maximums reaching 30°C (86°F), the weather remains pleasantly inviting for both locals and tourists. This month enjoys an average temperature of 24°C (75°F), making it ideal for enjoying the island's stunning beaches and picturesque landscapes. Compared to the scorching heat of August, September offers a slight reprieve while still basking in plenty of sunshine. Overall, it’s a perfect time to explore Chios, where the lingering warmth of the summer meets the soft approaches of autumn.
September in Chios, Greece, marks the tail end of summer, characterized by a significant drop in precipitation, with just 5 mm (0.2 in) recorded over the month, accompanied by only 1 day of rain. This minimal rainfall reflects a notable trend as the island transitions from the dry summer months of July and August, which almost saw no precipitation at all, into the wetter season that follows. Compared to earlier months, where January boasts 161 mm (6.3 in) of rain, September serves as a gentle reminder of the shifting seasons, setting the stage for the rainier October ahead, which averages 49 mm (1.9 in). As the landscape begins to prepare for autumn, the sparse September showers offer a brief respite and a hint of the lush greenery to come.
As summer transitions to autumn in Chios, Greece, September experiences a notable shift in humidity levels, averaging around 56%. This marks a slight increase from the drier months of July and August, where humidity plummeted to 57% and 49%, respectively. The trend reveals a gradual rise in moisture as the season progresses, signaling the approach of more humid months ahead, particularly October, where humidity spikes back up to 74%. Overall, September serves as a bridge, capturing the lingering warmth of summer while hinting at the impending richness of fall, setting the stage for a more humid climate as the year draws to a close.
In September, Chios, Greece, experiences a UV Index of 8, indicating a very high level of solar exposure that requires caution. As summer winds down, this month marks a slight decline from the peak indices observed in July and August, where the UV Index consistently hit 10. With a burn time of just 15 minutes, it's essential for visitors and locals alike to protect their skin against potential harm. The trend throughout the year reveals that while winter months bring moderate UV levels, the late spring and summer months demand heightened awareness due to significantly higher indices. As you enjoy the warmth and beauty of September in Chios, don't forget to check the current UV levels to stay sun-safe. For more information, visit the Chios UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Chios, Greece continues to bask in an impressive 350 hours of sunshine, making it a delightful time for visitors. Following the peak sunshine of July at 428 hours, the month sees a gentle decline, yet still holds onto a radiant warmth that lingers in the air. The preceding months, particularly May and June, set the stage with over 400 hours, creating a prolonged stretch of sun-drenched days. Even as the days grow shorter, September's ample sunshine ensures that the island maintains its inviting charm, allowing for perfect exploration of its stunning landscapes and vibrant culture before the cooler weather sets in.
In Chios, Greece, September boasts a 90% chance of sunny weather, making it one of the most delightful months for sun-seekers. Following a stunning summer, where the likelihood of sunshine peaks at 99% in August, September maintains a significant percentage, ensuring long, warm days perfect for outdoor activities. As the summer transition begins, the sun remains a reliable companion, but with slightly cooler evenings, ideal for enjoying the island's rich culture and cuisine. This trend of abundant sunshine reflects Chios's Mediterranean charm, inviting visitors to soak in the beauty before autumn sets in.
As the summer warmth begins to wane, September in Chios, Greece offers a gentle transition with approximately 12 hours of daylight. Following the peak of 14 hours seen in the heart of summer, this month marks the start of a gradual decrease in daylight that will continue through autumn. With daylight durations steadily dropping, from the higher figures of May through August, September balances the lingering summer vibes with the early whispers of fall. This moderate daylight creates a perfect setting for outdoor activities, where visitors can enjoy the mild temperatures and soothing light as the sun begins its seasonal retreat.
In Chios, Greece, as summer gracefully fades into autumn, September unveils a delightful shift in wind patterns. With an average wind speed of 6.8 m/s (15 mph), it strikes a harmonious balance, gently echoing the slightly brisker conditions of the previous months. This breath of wind follows a peak in July, which averages at 6.9 m/s (16 mph), and a dip during the warmer months of May and June, where speeds average around 4.6 m/s (10 mph). As the island transitions into autumn, the winds pick up again, hinting at the invigorating changes to come. The subtle ride back towards stronger winds in October and November, each averaging around 6.0 m/s (13 mph), illustrates how September serves as a delightful prelude to the seasonal breezes that define Chios, blending warmth and coolness in perfect unison.
Weather in Chios varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Chios, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit strikingly contrasting weather conditions. In September, temperatures range from a mild 17°C (63°F) to a warm 30°C (86°F), with an average of 24°C (75°F) and minimal precipitation of just 5 mm (0.2 in) over a single day. Humidity levels sit at a comfortable 56%. In contrast, January experiences a significant drop in temperatures, ranging from a chilly 2°C (35°F) to a moderate 19°C (67°F), with an average of only 11°C (53°F). This month is much wetter, receiving 161 mm (6.3 in) of rain over 12 days, and the humidity is notably higher at 84%. For more detailed information on the weather in January, visit Chios weather in January.
September and February present markedly different weather conditions. In September, temperatures range from a minimum of 17°C (63°F) to a maximum of 30°C (86°F), with an average of 24°C (75°F). This month enjoys minimal precipitation, with only 5 mm (0.2 in) falling across just one day and humidity levels at a moderate 56%. Conversely, February experiences much cooler temperatures, with a range from 3°C (37°F) to 18°C (64°F) and an average of 12°C (55°F). It also sees significantly higher precipitation, totaling 85 mm (3.4 in) over about nine days, coupled with a higher humidity of 83%. For more insights into February weather specifics, visit Chios weather in February.
September typically offers warmer temperatures, with averages around 24°C (75°F) and highs reaching up to 30°C (86°F), while enjoying relatively low humidity at 56% and only about 5 mm of precipitation over just one day. In contrast, March experiences significantly cooler weather, with average temperatures dropping to 13°C (56°F) and maximums only hitting 19°C (66°F). This month also sees much higher humidity at 81% and increased precipitation, with around 63 mm (2.5 in) spread over nine days. For a detailed look at weather conditions, check out Chios weather in March.
September and April present contrasting weather patterns. September enjoys a warmer climate with average temperatures around 24°C (75°F), peaking at a comfortable 30°C (86°F). The month sees minimal rainfall, with only about 5 mm (0.2 in) over just one day, contributing to a relatively low humidity level of 56%. In stark contrast, April is cooler, featuring an average temperature of 16°C (61°F) and maximums reaching 25°C (76°F). It experiences significantly more rainfall, totaling 36 mm (1.4 in) over five days, and higher humidity at 75%. For a more detailed look at April's weather specifics, visit Chios weather in April.
September and May present distinct weather characteristics. In September, temperatures typically range from a mild 17°C (63°F) at night to a warm average of 24°C (75°F) during the day, peaking at 30°C (86°F). This month enjoys relatively low precipitation, with only about 5 mm (0.2 in) falling on just one day, and a comfortable humidity level of 56%.
In contrast, May features slightly cooler temperatures, with a minimum of 14°C (57°F) and an average of 20°C (68°F), reaching a maximum of 28°C (82°F). However, this month experiences more rainfall, averaging 11 mm (0.4 in) over two days, and a higher humidity of 74%.
For more detailed information about the weather in May, you can explore Chios weather in May.
In comparing the weather of September and June, both months feature similar average temperatures, with September ranging from a minimum of 17°C (63°F) to a maximum of 30°C (86°F) and June having slightly lower minimums at 16°C (61°F) and a maximum of 31°C (88°F). While September experiences less precipitation at 5 mm (0.2 in) over just one day, June sees a bit more rain with 8 mm (0.3 in) on the same number of days. Additionally, June tends to be more humid, with humidity levels reaching 67% compared to September's 56%. For a more detailed exploration of June weather, you can visit Chios weather in June.
In comparing the weather of September and July, September experiences milder temperatures, with a minimum of 17°C (63°F) and an average of 24°C (75°F), while July is warmer, with a minimum of 21°C (70°F) and an average of 26°C (79°F). July also sees higher maximum temperatures, reaching up to 33°C (91°F) compared to September's peak of 30°C (86°F). While both months have low precipitation, September has slightly more rain at 5 mm (0.2 in) over just one day, whereas July remains quite dry with less than 1 mm (0.0 in) and no rainy days at all. Humidity levels are relatively similar, with September at 56% and July at 57%. For more details, check out this link: Chios weather in July.
In September, the weather begins to cool slightly with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 30°C (86°F), compared to August's warmer range of 22°C (71°F) to 32°C (90°F). Additionally, September experiences some precipitation, totaling 5 mm (0.2 in) over one day, whereas August remains dry with only trace amounts of rain and no precipitation days. Humidity levels are also higher in September at 56%, while August enjoys a lower humidity of 49%. For more detailed insights on August weather, you can visit Chios weather in August.
In September, the weather is generally warm and pleasant, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 30°C (86°F). This month sees minimal rainfall, averaging only 5 mm (0.2 in) over just one day, and a comfortable humidity level of 56%.
In contrast, October brings a noticeable shift, with cooler temperatures that span from a minimum of 13°C (55°F) to a maximum of 27°C (82°F). The month is much wetter, receiving about 49 mm (1.9 in) of precipitation over four days, and humidity rises to 74%, creating a more humid environment. For more detailed information about the weather, check out Chios weather in October.
In September, the weather is generally warm and pleasant, with temperatures ranging from a minimum of 17°C (63°F) to a maximum of 30°C (86°F) and an average of 24°C (75°F). Rainfall is minimal, with only about 5 mm (0.2 in) expected over just one day, and the humidity sits at a moderate 56%.
In contrast, November sees a significant shift in weather conditions. The temperatures drop, with a minimum of 10°C (50°F) and a maximum of 23°C (74°F), giving it an average of 17°C (63°F). Additionally, November experiences much higher precipitation at 80 mm (3.1 in) over approximately eight days, and humidity levels rise to 82%. For more detailed information, you can check Chios weather in November.
September and December present strikingly different weather patterns. In September, temperatures are quite warm, with a minimum of 17°C (63°F) and an average of 24°C (75°F), reaching a maximum of 30°C (86°F). The month is relatively dry, featuring only 5 mm (0.2 in) of precipitation over just one day and a comfortable humidity of 56%. In contrast, December sees a significant drop in temperatures, with a minimum of 6°C (43°F) and an average of 14°C (57°F), peaking at 20°C (68°F). This month is much wetter, with 154 mm (6.1 in) of rainfall spread across 16 days and higher humidity at 85%. For more detailed information, you can visit Chios weather in December.
As summer gracefully transitions into autumn, September brings a delightful change to Chios, marked by warm, comfortable temperatures and significantly reduced precipitation. Visitors can expect ample sunshine with average highs around 24°C (75°F), while the humidity remains a moderate 56%, providing a pleasant atmosphere for outdoor activities. This month stands apart from the hotter peak summer months, offering a perfect balance for those looking to enjoy both the warmth and the softer breezes. With just a day of rain and minimal precipitation, September is an ideal time to explore the stunning landscapes and cultural treasures of Chios. For more detailed insights on weather trends, check out Chios Climate.