September Weather in Kefalos, Greece

Last updated: August 21, 2025

In September, Kefalos, Greece, experiences delightful weather that invites visitors to embrace the outdoors. With a maximum temperature reaching a pleasant 28°C (83°F) and an average temperature of 24°C (76°F), the days are warm yet comfortable, perfect for beach outings and exploration. Evenings cool down to a minimum of 20°C (68°F), creating an ideal atmosphere for leisurely strolls. Notably, the month sees negligible precipitation, with just 2 mm (0.1 in) recorded and zero rainy days, allowing for uninterrupted enjoyment of the stunning landscapes. The air carries a 70% humidity level, adding a touch of warmth without the discomfort. Overall, September in Kefalos is a wonderful time to savor the Greek sun and vibrant culture.

September Temperature in Kefalos

In Kefalos, Greece, September marks a delightful transition from the blazing summer months to the milder embrace of autumn. The temperatures during this month reveal a warm climate with minimums around 20°C (68°F) and averages hitting 24°C (76°F), making it ideal for beach activities and outdoor exploration. As the month progresses, the maximum temperatures reach pleasant highs of 28°C (83°F), ensuring plenty of sunshine while offering a slightly cooler reprieve compared to the sweltering heat of July and August. This trend illustrates a gradual yet noticeable drop in temperature, paving the way for a more comfortable experience as nature begins its shift toward fall, all without sacrificing the warmth that many travelers seek.

September Weather in Kefalos: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Kefalos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kefalos, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec565758626773777876716660
Data source: Temperature data for Kefalos generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Kefalos

In September, precipitation in Kefalos, Greece remains minimal, with only 2 mm (0.1 in) recorded throughout the month and 0 days of rainfall. This trend of dry weather continues the pattern established in the previous two summer months, July and August, when there was no rain at all. As the summer heat begins to wane and the fall season approaches, one can anticipate a gradual increase in precipitation, as indicated by the rising amounts seen in October and November. This transitional phase highlights Kefalos's typically dry late summer, paving the way for the wetter autumn months ahead.

September Precipitation Trends in Kefalos

The chart displays monthly precipitation patterns in Kefalos, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Kefalos, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec116846023230022668141
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kefalos

In Kefalos, Greece, September marks a notable shift in humidity levels, settling at a comfortable 70%. This figure represents a refreshing drop compared to the peak of 81% in May and the summer months, which saw July and August experiencing lower humidity levels of 71% and 66%, respectively. The transition into autumn brings a slight increase compared to the drier summer, but September remains significantly more moderate than earlier spring months, which hover around 77%. As the year progresses, the humidity takes on a more stable rhythm, maintaining an average in the mid to high 70s throughout the fall and winter months, making Kefalos's coastal climate conducive for visitors looking to bask in mild weather.

September Average Humidity in Kefalos

This chart illustrates the average monthly humidity levels in Kefalos, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Kefalos is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%77%77%81%77%72%66%70%76%77%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kefalos

As summer transitions to autumn, September in Kefalos, Greece witnesses a gradual decline in UV levels, yet it remains an ideal time for sun lovers. With a UV Index of 8 categorized as very high, the sun still demands attention, allowing for only 15 minutes of unprotected exposure before skin begins to burn. This trend follows the peak summer months of June, July, and August—each sporting a steadfast UV Index of 10—which significantly emphasizes the importance of sun protection during this period. As temperatures start to cool down, October brings a slight reduction to a UV Index of 7, signaling a shift towards safer sun exposure. To stay informed about the UV levels and take the necessary precautions, visit Kefalos UV Index.

Maximum UV Index Levels in Kefalos for September

The chart shows the monthly maximum UV Index (UVI) for Kefalos in September, 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 September, the maximum UV index in Kefalos typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108743
Data source: Kefalos September 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.

September Sunshine in Kefalos

As summer gently fades into autumn, September in Kefalos offers a delightful blend of sunshine and warmth, boasting an impressive 350 hours of sunlight. This month continues the trend of abundant daylight seen through peak summer, with only a slight decrease from July's 424 hours. Just as the beach season peaks in July and August, September retains the enticing glow of summer, making it perfect for lingering seaside escapes. As temperatures begin to cool slightly, the sun still shines brightly, allowing visitors to savor the beautiful outdoor landscapes and experience the charming ambiance that Kefalos has to offer. With a gentle transition into fall marked by this radiant sunshine, September stands as a testament to the enduring allure of this picturesque Greek destination.

Monthly Sunshine Duration in Kefalos: September Highlighted

The September sunshine duration represents the total number of hours Kefalos experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec218h273h336h355h401h411h424h396h350h327h278h270h
Data source: Kefalos September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kefalos During September

In Kefalos, Greece, the likelihood of enjoying sunny weather continues its impressive streak as summer transitions into early autumn. With September boasting a remarkable 97% chance of sunshine, it stands as one of the sunniest months of the year, following the nearly perfect weeks of July and August. This trend showcases a gradual build-up in sunny days from January's 40% to the peak summer months, highlighting the region's shift toward long, sun-soaked days. As the tourism season eases into September, visitors can relish the lingering warmth and bright skies, making it an ideal time for those seeking a beach getaway or outdoor adventures.

Percentage of Sunny Days in September in Kefalos

The chart illustrates the percentage of sunny days in Kefalos throughout the year, with September 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 Kefalos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%68%68%55%78%95%99%100%97%80%50%44%
Data source: Kefalos September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kefalos in September

As summer bids farewell and autumn approaches, September in Kefalos, Greece, offers a gentle transition in daylight duration, with an average of 12 hours of daylight. This month marks a notable shift from the long, sun-drenched days of June, July, and August, when the island basked in 14 hours of light. While September retains a generous amount of daylight, it signals the end of peak summer brightness and the gradual decline into autumn, as daylight hours decrease to 11 hours by October. The ebbing sunlight creates a unique charm, encouraging visitors to savor the warm evenings and vibrant sunsets, while also hinting at the cozy, shorter days that lie ahead.

Average Daylight Hours in Kefalos for September

The chart illustrates the variation in daylight duration in Kefalos throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 56m10h 50m11h 58m13h 8m14h 8m14h 37m14h 22m13h 30m12h 22m11h 12m10h 11m9h 40m
Data source: Kefalos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Kefalos

As September unfolds in Kefalos, Greece, the winds remain steady, with an average speed of 8.1 m/s (18 mph), mirroring the breezy conditions of the preceding months. Following the summer peaks in July and August, where gusts dance at 8.4 m/s and 8.3 m/s respectively, September marks a smooth transition toward the calmer breezes of autumn. The winds during this month provide just the right amount of freshness, perfect for enjoying seaside strolls or engaging in water sports, all while hinting at the approaching milder months ahead. As the warmth lingers, the winds gently signify a seasonal shift, complementing the mesmerizing beauty of Kefalos with their rhythmic embrace.

Average September Wind Speed in Kefalos

The chart displays monthly wind speed patterns in Kefalos, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.18.08.58.26.27.68.48.38.1 m/s6.56.08.2
Data source: Kefalos September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Kefalos Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures are pleasantly warm, with minimums around 20°C (68°F) and averages reaching 24°C (76°F), while precipitation is minimal at just 2 mm (0.1 in) over 0 days, making it an ideal time for outdoor activities. In contrast, January experiences much cooler temperatures, with a minimum of only 6°C (43°F) and an average of 14°C (57°F), alongside significant rainfall totaling 116 mm (4.6 in) over 12 days. Additionally, humidity is slightly higher in January at 77%, compared to 70% in September. For a more detailed look at January weather, visit Kefalos weather in January.

September and February present a striking contrast in weather patterns. In September, temperatures are relatively warm, with a minimum of 20°C (68°F), an average of 24°C (76°F), and a maximum reaching up to 28°C (83°F). This month sees very little precipitation, with just 2 mm (0.1 in) and no rainy days, while humidity hovers around 70%. Conversely, February experiences cooler conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (65°F) and an average of 14°C (58°F). This month is also much wetter, receiving about 84 mm (3.3 in) of rain over approximately 10 days, and maintaining a higher humidity level at 76%. For more detailed information on February weather, check out Kefalos weather in February.

In September, the weather is significantly warmer, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 28°C (83°F) and averaging around 24°C (76°F). The month experiences minimal precipitation, with only 2 mm recorded over no rainy days and a humidity level of 70%. In contrast, March brings much cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 18°C (65°F), averaging 14°C (58°F). This month is considerably wetter, receiving 60 mm of rain over 7 days and featuring a slightly higher humidity level of 77%. For more details on March weather, visit Kefalos weather in March.

September typically boasts warmer temperatures, with averages around 24°C (76°F) and highs reaching up to 28°C (83°F). In contrast, April experiences cooler temperatures, averaging 16°C (62°F) with maximums of 21°C (70°F). Additionally, September benefits from minimal precipitation, averaging just 2 mm (0.1 in) over 0 rain days, while April sees more moisture with 23 mm (0.9 in) spread across 3 rainy days. Despite the higher humidity in April at 77%, September's humidity sits at a slightly lower 70%. For more details, you can check Kefalos weather in April.

In comparing the weather between September and May, September typically enjoys slightly warmer temperatures, with average highs reaching 28°C (83°F) compared to May’s peak of 25°C (77°F). The nights in September are also warmer, with a minimum temperature of 20°C (68°F), while May starts off cooler at 16°C (60°F). Both months experience minimal precipitation, with only 2 mm (0.1 in) recorded, and neither month has any rainy days. However, May has a bit more humidity at 81%, compared to September’s 70%. For those interested in details specific to May, you can check out Kefalos weather in May.

In comparing the weather of September and June, September boasts slightly warmer temperatures, with a minimum of 20°C (68°F) and an average high of 28°C (83°F), compared to June's minimum of 16°C (61°F) and maximum of 27°C (81°F). Both months experience minimal precipitation, with September receiving 2 mm (0.1 in) and June slightly more at 3 mm (0.1 in), and both have zero rainy days. However, humidity is a bit higher in June at 77%, compared to September's 70%, making June feel a touch more muggy. For more details on June weather specifically, check out Kefalos weather in June.

In comparing the weather between September and July, both months exhibit relatively warm temperatures. September features a minimum of 20°C (68°F), an average of 24°C (76°F), and a maximum of 28°C (83°F), while July is slightly warmer with a minimum of 22°C (72°F), an average of 25°C (77°F), and a maximum of 29°C (85°F). Notably, September experiences very light precipitation of just 2 mm (0.1 in) over the entire month, similar to July, which sees no rainfall at all (0 mm). Humidity levels are fairly comparable, with September at 70% and July at 71%. For a more detailed look at the weather conditions, you can check Kefalos weather in July.

In comparing the weather of September and August, we notice a slight drop in temperatures as September averages around 24°C (76°F) compared to August's 26°C (78°F). Additionally, September has minimum and maximum temperatures of 20°C (68°F) and 28°C (83°F), whereas August ranges from a minimum of 23°C (74°F) to a maximum of 30°C (86°F). Precipitation remains negligible in both months, but September experiences a bit more humidity at 70%, compared to August's 66%. For more detailed insights, check out the information on Kefalos weather in August.

September in Kefalos offers warm temperatures, with a minimum of 20°C (68°F) and an average of 24°C (76°F), peaking at 28°C (83°F). The month is notably dry, with only 2 mm of precipitation over no rainy days and humidity around 70%. In contrast, October sees a decline in temperatures, with a minimum of 16°C (60°F) and an average of 22°C (71°F), reaching a maximum of 26°C (78°F). However, October brings increased rainfall, totaling 26 mm over 4 days, and humidity rises slightly to 76%. For a more detailed look at the weather conditions during this month, you can visit Kefalos weather in October.

September weather in Kefalos is typically warm and dry, with temperatures ranging from a comfortable 20°C (68°F) to a high of 28°C (83°F) and very little precipitation. The average humidity sits at around 70%, providing a pleasant atmosphere for outdoor activities. In contrast, November brings a notable drop in temperatures, with minimums of 12°C (55°F) and a maximum of 24°C (75°F), along with a significant increase in rainfall, totaling 68 mm (2.7 in) over six days. This month also has a higher humidity level of 77%, making it feel a bit cooler and damp compared to the warm days of September. For more detailed information, check out Kefalos weather in November.

The weather in September is characterized by warm temperatures, with a minimum of 20°C (68°F) and a maximum of 28°C (83°F), along with low precipitation of just 2 mm over no rainy days. In contrast, December experiences much cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 21°C (69°F), accompanied by significantly higher rainfall of 141 mm spread over 14 days. The humidity also rises slightly from 70% in September to 78% in December, making the latter month feel more damp and chilly. For more detailed information, you can check Kefalos weather in December.

Compare Kefalos's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Kefalos

As September rolls in, Kefalos welcomes a delightful transition from the scorching summer as temperatures begin to mellow, making it a perfect time for visitors. With average highs around an inviting 24°C and minimal precipitation, the month stands out for its dry and comfortable atmosphere. Humidity levels are moderate, allowing for pleasant outdoor activities without the overwhelming heat felt in the peak summer months. For those looking to enjoy the beauty of Kefalos without the summer crowds, September's serene climate offers the perfect backdrop. Discover more about what to expect in the area by checking out Kefalos Climate.