September Weather in Zakynthos, Greece

Last updated: February 6, 2025

Experience the enchanting September weather of Zakynthos, where daytime temperatures can peak at a delightful 29°C (84°F), settling to a pleasant average of 25°C (77°F). As the summer sun begins to mellow, evenings cool down comfortably to a minimum of 18°C (64°F). While the month welcomes a modest 65 mm (2.6 in) of rainfall over just 5 days, the island maintains a charming humidity level of 66%. This unique blend of warmth and occasional showers creates the perfect atmosphere for exploration and relaxation in this stunning Greek paradise.

September Temperature in Zakynthos

In September, Zakynthos experiences a delightful transition towards autumn, with temperatures remaining pleasantly warm. Minimums of around 18°C (64°F) provide a comfortable foundation for daily activities, while average highs reach a satisfying 25°C (77°F), perfect for sun-soaked beach days. The peak max temperatures hover around 29°C (84°F), making it an ideal month for those wanting to enjoy the tail end of summer without the intense heat of the earlier months. As the island shifts from the sizzling summer to a milder autumn, visitors can revel in the lingering warmth and beautiful outdoor experiences that September has to offer.

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

The chart illustrates September temperature patterns in Zakynthos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec555657606672778076706559
Data source: Temperature data for Zakynthos 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 Zakynthos

In September, Zakynthos experiences a noticeable uptick in precipitation, receiving an average of 65 mm (2.6 in) over about 5 days of rain. This marks a shift from the preceding months, where summer's dry spell yielded only minimal rainfall, with August recording just 9 mm. As summer transitions into autumn, the island's weather becomes more unpredictable, paving the way for the much wetter months ahead. October typically amplifies this shift, bringing even higher levels of precipitation at 115 mm (4.5 in). With the number of rainy days expected to increase, September serves as a gentle reminder that the vibrant colors of fall are on the horizon, offering a unique charm to the stunning landscapes of Zakynthos.

September Precipitation Trends in Zakynthos

The chart displays monthly precipitation patterns in Zakynthos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec198927430162215965115237203
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Zakynthos

As summer transitions into autumn, September in Zakynthos, Greece, experiences a noticeable drop in humidity, with levels settling at 66%. This marks the lowest humidity point in the year, following a pattern of gradual decrease from the peak summer months of July and August, which recorded 74% and 68%, respectively. The easing humidity continues the trend of creating a more comfortable atmosphere as the temperatures begin to cool. Notably, September's climate offers a pleasant balance, making it an ideal time for those looking to enjoy the island's beauty without the oppressive heat and humidity that characterizes the height of summer.

September Average Humidity in Zakynthos

This chart illustrates the average monthly humidity levels in Zakynthos, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec76%73%73%75%79%75%74%68%66%69%73%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Zakynthos

As summer fades into autumn, the UV Index in Zakynthos, Greece, remains impressively high in September, sitting at a robust 8. This classification falls under the very high exposure category, requiring just 15 minutes of midday sun before experiencing potential skin damage. Following the peak summer months where the UV Index reached a maximum of 10, September signals a slight decrease, yet it still demands cautious sun protection. This trend highlights Zakynthos as a sun-drenched destination even as the season shifts, making it essential for visitors to remain vigilant regarding sun exposure. For more detailed information on the UV Index throughout the year, check out Zakynthos UV Index.

Maximum UV Index Levels in Zakynthos for September

The chart shows the monthly maximum UV Index (UVI) for Zakynthos 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.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108743
Data source: Zakynthos 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 Zakynthos

As summer transitions into autumn, September shines brightly in Zakynthos, Greece, showcasing a delightful 344 hours of sunshine. This month, while enjoying a gradual decline from the sun-drenched peak of July, still offers plenty of bright, warm days for beach lovers and explorers alike. Following the highs of summer with 420 hours in July and 393 hours in August, September invites visitors to bask in the enduring warmth without the bustling crowds. It's a time when the island's natural beauty can be appreciated in a more tranquil setting, making it the perfect month for those seeking a vibrant yet serene escape. As the days shorten into October, which sees 315 hours, September serves as a reminder that the sunshine in Zakynthos lingers, offering a perfect blend of warmth and relaxation.

Monthly Sunshine Duration in Zakynthos: September Highlighted

The September sunshine duration represents the total number of hours Zakynthos 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.
JanFebMarAprMayJunJulAugSepOctNovDec207h267h334h348h400h408h420h393h344h315h268h255h
Data source: Zakynthos September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Zakynthos During September

As summer transitions into autumn, Zakynthos offers a delightful September experience, with the sun shining 75% of the time. After a string of sun-soaked months peaking in July and August, when the likelihood of sunny weather reaches an impressive 97%, September maintains a pleasant warmth while welcoming a slight cool-down. This month stands out with significantly more sunshine than earlier months, such as January's modest 34%. With this favorable forecast, visitors can still enjoy abundant outdoor activities and breathtaking beaches throughout September, making it a perfect time to savor the fading summer vibes before fall sets in.

Percentage of Sunny Days in September in Zakynthos

The chart illustrates the percentage of sunny days in Zakynthos 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 Zakynthos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%64%59%57%72%88%97%97%75%55%36%52%
Data source: Zakynthos September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Zakynthos in September

As summer begins to wane, September in Zakynthos, Greece, marks a picturesque transition, with daylight lasting approximately 12 hours. This slight decrease from the 14 hours enjoyed during the peak months of June through August signals the onset of autumn. Visitors can still relish the warm, sun-drenched days, perfect for beach outings and exploration, while the sun begins to set a bit earlier, offering tranquil evenings. Following this month, daylight will gradually diminish to 11 hours in October, as the island shifts into the cozy embrace of autumn, revealing a landscape transformed yet still vibrant. The rhythmic ebb and flow of daylight throughout the year create a captivating tapestry of experiences, each season offering its own unique charm.

Average Daylight Hours in Zakynthos for September

The chart illustrates the variation in daylight duration in Zakynthos throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 52m10h 47m11h 58m13h 11m14h 12m14h 43m14h 27m13h 32m12h 23m11h 10m10h 7m9h 34m
Data source: Zakynthos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Zakynthos

As summer transitions into autumn, September in Zakynthos brings a noticeable shift in wind patterns. The average wind speed drops to 4.0 m/s (9 mph), marking the calmest breezes of the year, perfect for leisurely beach days and tranquil sunsets. This decline in wind velocity follows a gradual decrease from the peak summer months, where July and August maintain a steady whisper at around 4.5 to 4.8 m/s. By October, winds pick up again, escalating to 5.1 m/s (11 mph), which heralds the onset of the cooler seasons. This pattern not only enhances the island's beauty but also sets the stage for delightful outdoor activities, making September a serene yet engaging time to explore the charms of Zakynthos.

Average September Wind Speed in Zakynthos

The chart displays monthly wind speed patterns in Zakynthos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.05.15.05.04.94.24.84.54.0 m/s5.15.76.8
Data source: Zakynthos September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Zakynthos Compares to Other Months

The weather in Zakynthos 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 Zakynthos and find detailed weather information for every month.

September and January exhibit strikingly different weather patterns. In September, temperatures are much warmer, with averages around 25°C (77°F) and maximums reaching up to 29°C (84°F), accompanied by moderate humidity at 66%. The month experiences relatively low precipitation, totaling 65 mm over about 5 days. In contrast, January brings cooler temperatures, with averages dropping to 13°C (55°F) and maximums peaking at 20°C (68°F). This month also experiences significantly higher precipitation levels at 198 mm, spread across approximately 16 days, and increased humidity at 76%. For a more detailed look at January weather, visit Zakynthos weather in January.

In September, the weather is noticeably warmer, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 29°C (84°F), accompanied by moderate humidity at 66%. This month typically enjoys around 65 mm (2.6 in) of precipitation over about five days, making it a pleasant time for outdoor activities. In stark contrast, February sees much cooler temperatures, with averages between 6°C (43°F) and 18°C (64°F). The month is also wetter, recording approximately 92 mm (3.6 in) of rain over 11 days, and a slight increase in humidity to 73%. For more detailed insights on February weather patterns, check out Zakynthos weather in February.

The weather in September typically showcases warmer temperatures compared to March, with averages ranging from a minimum of 18°C (64°F) to a maximum of 29°C (84°F), whereas March experiences cooler temperatures, starting at a minimum of 6°C (44°F) and peaking at 19°C (66°F). While September enjoys a relatively dry month with only five days of precipitation totaling 65 mm (2.6 in), March faces more frequent rain, occurring over eleven days and accumulating 74 mm (2.9 in). Additionally, humidity levels are slightly higher in March at 73%, compared to 66% in September. For more detailed insights, check out Zakynthos weather in March.

In comparing the weather between September and April, one can see noticeable differences in temperature and precipitation. September boasts warmer temperatures, with a minimum of 18°C (64°F) and an average high of 29°C (84°F), while April is cooler, starting at a minimum of 11°C (52°F) and averaging a high of 24°C (76°F). When it comes to precipitation, September experiences more rainfall, totaling 65 mm (2.6 in) over 5 days, compared to April's 30 mm (1.2 in) across the same number of days. Humidity levels are slightly higher in April at 75%, compared to September's 66%. For those interested in the specific weather details of April, visit Zakynthos weather in April.

When comparing the weather in September and May, September generally presents warmer temperatures, with minimums around 18°C (64°F) and averages peaking at 25°C (77°F). In contrast, May starts off cooler, with minimum temperatures at 13°C (56°F) and average highs reaching 19°C (66°F). Precipitation in September is notably higher at 65 mm (2.6 in), occurring over five days, whereas May typically sees only 16 mm (0.6 in) over four days. Additionally, humidity levels are slightly lower in September at 66%, compared to May's 79%. For a closer look at May's conditions, you can visit Zakynthos weather in May.

In comparing the weather of September and June, September generally offers warmer temperatures, with average highs of 29°C (84°F), compared to June's average high of 28°C (83°F). The minimum temperatures are similar, with September averaging 18°C (64°F) and June slightly cooler at 17°C (63°F). However, September tends to be wetter, with 65 mm (2.6 in) of precipitation over 5 days, while June experiences considerably less rainfall at only 22 mm (0.9 in) over 2 days. Additionally, humidity levels are higher in June at 75%, compared to 66% in September. For more details on the climate, you can check Zakynthos weather in June.

In comparing the weather between September and July, we observe some notable differences. September typically has slightly cooler nighttime temperatures, with a minimum of 18°C (64°F) compared to July's 20°C (69°F). Both months share an average temperature of 25°C (77°F) and a maximum of 29°C (84°F in September and 85°F in July). However, September is generally wetter, experiencing 65 mm (2.6 in) of precipitation over about 5 days, while July enjoys much drier conditions with only 15 mm (0.6 in) over just 1 day. Additionally, humidity levels are higher in July at 74%, compared to September's 66%. For more information on July's weather specifics, check out Zakynthos weather in July.

In comparing the weather patterns of September and August, we see distinct differences. September experiences slightly cooler temperatures, with a minimum of 18°C (64°F) and an average of 25°C (77°F), whereas August is warmer, boasting a minimum of 22°C (72°F) and an average of 27°C (80°F). Additionally, September brings more precipitation, totaling 65 mm (2.6 in) over 5 days, compared to August’s sparse 9 mm (0.3 in) over just 1 day. Humidity levels are relatively similar, with September at 66% and August slightly higher at 68%. For a more detailed look at August's climate, check out Zakynthos weather in August.

September's weather in Zakynthos features warmer temperatures, with an average of 25°C (77°F) and a maximum of 29°C (84°F), while October sees a slight drop to an average of 21°C (70°F) and a maximum of 27°C (81°F). September experiences less precipitation, totaling 65 mm (2.6 in) over 5 days, compared to October’s 115 mm (4.5 in) over 8 days. Additionally, October tends to be a bit more humid, with humidity levels rising from 66% in September to 69% in October. For more detailed information on October's climate, visit Zakynthos weather in October.

In September, the weather often boasts warmer temperatures, with a minimum of 18°C (64°F) and an average of 25°C (77°F), peaking at 29°C (84°F). This month sees moderate rainfall, totaling 65 mm over just 5 days, accompanied by a humidity level of 66%. In contrast, November experiences cooler conditions, with temperatures dipping to a minimum of 12°C (54°F) and averaging at 18°C (65°F), reaching a maximum of 23°C (75°F). Significantly, precipitation increases to 237 mm spread across 15 days, also bringing higher humidity levels at 73%. For more detailed insights, check out Zakynthos weather in November.

In September, the weather is generally warm with average temperatures around 25°C (77°F), peaking at 29°C (84°F), while December sees a significant drop, with average temperatures around 15°C (59°F) and a maximum of only 20°C (67°F). The month of September experiences moderate humidity at 66% and light rainfall, averaging 65 mm over just 5 days. In contrast, December is characterized by higher humidity at 75% and considerably more precipitation, totaling 203 mm spread over 18 days. For more detailed information, you can check out the Zakynthos weather in December.

Compare Zakynthos's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Zakynthos

As summer begins to wane, September in Zakynthos offers a delightful transition into autumn, characterized by pleasantly warm temperatures and moderate humidity. The island enjoys a pleasant average temperature of around 25°C (77°F), making it perfect for outdoor activities and beach days. Unlike the peak summer months, September sees a slight uptick in rainfall, with about five days of precipitation totaling approximately 65 mm (2.6 in), which helps to keep the landscape lush and vibrant. This shift in weather not only enhances the natural beauty of the island but also marks the beginning of a quieter tourist season. For those looking to explore the charms of Zakynthos, the month of September provides a unique blend of summery warmth with the serenity of early autumn. To learn more about what to expect throughout the year, check out Zakynthos Climate.