Last updated: August 21, 2025
September in Zakynthos, Greece offers a delightful blend of warm temperatures and moderate humidity, making it an ideal time for visitors. With a maximum of 29°C (84°F) and an average of 25°C (77°F), the days are pleasantly warm, while evenings cool down to a comfortable minimum of 18°C (64°F). Though rain may grace the island with approximately 65 mm (2.6 in) of precipitation over 5 days, the charm of Zakynthos remains undiminished. With a humidity level of 66%, visitors can enjoy the vibrant landscapes and stunning beaches, all while basking in the residual warmth of summer.
As summer gracefully transitions into fall, Zakynthos in September welcomes visitors with pleasantly warm temperatures. With minimums averaging around 18°C (64°F) and daily highs peaking at 29°C (84°F), the island enjoys an inviting climate perfect for outdoor activities and beach lounging. This month reflects a gradual cooling from the sizzling August heat, where temperatures can soar up to 30°C (87°F). The average temperature settles at a comfortable 25°C (77°F), creating an ideal environment for both relaxation and exploration. As daylight hours begin to shorten, the island still retains the essence of summer, providing a beautiful backdrop for those looking to embrace the last remnants of warmth before autumn sets in.
In September, Zakynthos experiences a noticeable shift in precipitation, with total rainfall amounting to 65 mm (2.6 in) over approximately 5 days. This increase marks a departure from the dry summer months, where conditions often remained parched, with only 9 mm (0.3 in) in August. As the island transitions into autumn, the precipitation begins to rise steeply, paving the way for October's rainfall of 115 mm (4.5 in). September's weather can be characterized by pleasant warmth interspersed with refreshing showers, providing a vibrant backdrop for lush landscapes and a rejuvenated atmosphere. This gradual uptick in moisture prepares both the environment and visitors for the dramatic seasonal changes ahead, highlighting Zakynthos's dynamic climate.
As summer fades into autumn, September in Zakynthos, Greece, experiences a notable dip in humidity, dropping to 66%—the lowest point of the year. Throughout the warmer months, humidity levels remained relatively high, peaking at 79% in May and gradually decreasing to 68% in August. This transition marks a refreshing change, as the island’s typically humid air gives way to a more pleasant atmosphere, making September an ideal time for visitors to enjoy the stunning landscapes and vibrant culture. As the months progress, humidity begins to creep back up, reaching 69% in October, but the relief of September's lower levels truly enhances the beauty of this enchanting destination.
In September, Zakynthos, Greece, experiences a UV Index of 8, signaling very high sun exposure and a burn time of only 15 minutes. This marks a slight decline from the peak summer months of June to August, which maintained a consistent UV Index of 10. As the warm days of late summer linger, it's essential to remain vigilant while enjoying the outdoors, as the risk of sunburn remains substantial. With October approaching, the UV Index begins to taper off, showing a trend towards lower levels, but until then, sun protection is key. For more detailed information, check the Zakynthos UV Index.
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As summer winds down, September in Zakynthos still offers an abundance of sun, boasting 344 hours of glorious sunshine. This pleasant month is characterized by a gentle transition from the intense summer heat, marked by July's peak of 420 hours. While outdoor enthusiasts may reminisce about the longer days of June and July, September still shines brightly with nearly 85% of July's sunlight, making it an ideal time to enjoy breathtaking beaches and stunning landscapes. As the days shorten into October, with 315 hours of sunshine, visitors can relish in the warm, golden hues of early autumn, blending relaxation with invigorating adventures in this Mediterranean paradise.
As summer fades, September in Zakynthos, Greece, presents a promising blend of warmth and sunshine, boasting a 75% chance of sunny weather. This month marks a delightful transition, where the blazing heat of July and August with their remarkable 97% likelihood gives way to a still pleasant climate. While the sun shines brightly, the likelihood of clear skies noticeably dips compared to the previous months, echoing a natural trend toward autumn. Overall, September retains significant sun-kissed charm, making it an appealing time for travelers seeking both sunny days and a quieter atmosphere.
As summer gives way to autumn in Zakynthos, Greece, September experiences a gentle decline in daylight, with about 12 hours of daylight each day. This shift marks a transition from the long, sun-drenched days of summer, where the island basked in up to 14 hours of sunshine from June to August. The warmth of the Mediterranean sun lingers, but as September unfolds, daylight hours begin to wane, leading towards the cooler months of October and November. Visitors can still enjoy ample time outdoors, relishing in the vibrant hues of early autumn while experiencing a more tranquil atmosphere on this stunning island.
As summer wanes and autumn begins to unfurl its colors, September in Zakynthos, Greece, presents a gentle transition in wind patterns. The average wind speed dips to 4.0 m/s (9 mph), marking it as the calmest month of the year. This decrease in wind is a serene conclusion to the busy summer, offering visitors a more tranquil environment to enjoy the island's breathtaking landscapes. From the brisker winds of January averaging 8.0 m/s (18 mph) to the soft embrace of September's breezes, it's evident that Zakynthos transitions gracefully, inviting travelers to soak in the warm sun and picturesque views without the hustle and bustle of stronger gusts. As October approaches, there's a slight uptick in wind speed back to 5.1 m/s (11 mph), hinting at the brisk autumn that awaits, but September's allure is defined by its relaxed, soothing winds.
Weather in Zakynthos varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Zakynthos, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in September and January, we can see significant differences in temperature and precipitation patterns. September 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). It's relatively dry, experiencing only 65 mm (2.6 in) of rain over five days and a humidity level of 66%. In contrast, January brings much cooler temperatures, with a minimum of 4°C (40°F) and an average of 13°C (55°F), reaching a maximum of 20°C (68°F). This month is much wetter, with 198 mm (7.8 in) of precipitation spread over 16 days and increased humidity at 76%. For more details about the weather conditions in January, check out Zakynthos weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures are generally milder, with minimums around 18°C (64°F) and averages peaking at 25°C (77°F), while maximums can reach 29°C (84°F). The month sees a moderate level of precipitation at 65 mm (2.6 in) across about 5 days, along with an average humidity of 66%. In contrast, February experiences cooler temperatures, with a minimum of 6°C (43°F) and an average of only 13°C (56°F), peaking at 18°C (64°F). This month is wetter, registering 92 mm (3.6 in) of rainfall over approximately 11 days, accompanied by a higher humidity level of 73%. For a detailed look at February weather, you can visit Zakynthos weather in February.
September and March present quite different weather experiences. In September, temperatures are generally warmer, ranging from a minimum of 18°C (64°F) to a maximum of 29°C (84°F), with an average of 25°C (77°F). The month sees around 65 mm (2.6 in) of precipitation spread over about 5 days, accompanied by a humidity level of 66%. In contrast, March experiences cooler temperatures, with a range from a minimum of 6°C (44°F) to a maximum of 19°C (66°F), and an average of just 14°C (57°F). Precipitation is slightly higher at 74 mm (2.9 in), occurring over about 11 days, and the humidity rises to 73%. For more specifics on this transition, check out Zakynthos weather in March.
When comparing the weather in September and April, a clear contrast in temperature and humidity emerges. September boasts a more temperate climate, with minimums around 18°C (64°F) and maximums reaching 29°C (84°F), making it ideal for outdoor activities. In contrast, April experiences cooler temperatures, with averages ranging from 11°C (52°F) to a maximum of 24°C (76°F), providing a refreshing spring feel. Precipitation is generally lighter in April, with only 30 mm (1.2 in) compared to September's 65 mm (2.6 in), though both months typically see rain on about 5 days. Humidity is slightly higher in April at 75%, compared to September's 66%, contributing to a different overall atmosphere. For more details, check out Zakynthos weather in April.
The weather in September tends to be warmer and more humid compared to May. September boasts an average temperature of 25°C (77°F), with highs reaching 29°C (84°F), while May temperatures are slightly cooler, averaging 19°C (66°F) with a maximum of 26°C (80°F). Additionally, September experiences more precipitation, with 65 mm (2.6 in) over 5 days, compared to May's lighter rainfall of 16 mm (0.6 in) over 4 days. Humidity levels are also higher in May at 79%, while September's humidity averages around 66%. For a detailed look at the weather during this beautiful spring month, visit Zakynthos weather in May.
In comparing the weather of September and June, September offers slightly warmer temperatures, with a minimum of 18°C (64°F), an average of 25°C (77°F), and a maximum of 29°C (84°F). In contrast, June has a minimum temperature of 17°C (63°F), an average of 22°C (72°F), and a maximum of 28°C (83°F). September also experiences more precipitation, with 65 mm (2.6 inches) spread over five days, whereas June sees only 22 mm (0.9 inches) over two days. Additionally, June has a higher humidity level at 75%, compared to September's 66%. For more details, check out Zakynthos weather in June.
In September, temperatures remain fairly consistent with an average of 25°C (77°F) and highs peaking at 29°C (84°F), but the minimum temperature drops slightly to 18°C (64°F). The month sees a significant increase in rainfall, with 65 mm (2.6 in) of precipitation spread over 5 days, contributing to a humidity level of 66%. In contrast, July experiences slightly warmer nights, with a minimum temperature of 20°C (69°F), while maintaining the same average and maximum temperatures as September. July is notably drier, receiving only 15 mm (0.6 in) of precipitation in just 1 day and featuring higher humidity at 74%. For more details on July weather, you can check Zakynthos weather in July.
In comparing the weather of September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 29°C (84°F), whereas August is warmer, with temperatures typically between 22°C (72°F) and 30°C (87°F). September also sees more precipitation, amounting to 65 mm (2.6 in) over about five days, compared to August, which experiences only 9 mm (0.3 in) across just one day of rain. Humidity levels are quite similar, with September at 66% and August at 68%. For a more detailed look at August's weather, you can refer to Zakynthos weather in August.
In September, the weather is typically warmer with average temperatures around 25°C (77°F) and a maximum reaching 29°C (84°F), while October sees a slight drop in temperatures, averaging 21°C (70°F) and peaking at 27°C (81°F). Precipitation increases in October, totaling 115 mm (4.5 in) over 8 days compared to September's 65 mm (2.6 in) over 5 days, indicating a wetter month ahead. Humidity also rises slightly, from 66% in September to 69% in October. For more detailed information, you can check Zakynthos weather in October.
September typically boasts warmer weather compared to November, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 29°C (84°F), while November sees lower temperatures, with a minimum of 12°C (54°F) and a maximum of 23°C (75°F). Additionally, September experiences less precipitation, averaging 65 mm (2.6 in) over approximately 5 days, whereas November is significantly wetter, with 237 mm (9.3 in) of rain over 15 days. Humidity also slightly increases in November, averaging 73%, compared to 66% in September. For more details on the weather in November, you can check Zakynthos weather in November.
September weather in Zakynthos is notably warmer, with average temperatures reaching around 25°C (77°F) and maximums of 29°C (84°F). The month experiences a moderate amount of rainfall, totaling 65 mm (2.6 in) over just 5 days, along with a humidity level of 66%. In contrast, December sees significantly cooler conditions, with average temperatures dropping to 15°C (59°F) and maximums capping at 20°C (67°F). The month is much wetter, receiving 203 mm (8.0 in) of precipitation across 18 days and exhibiting a higher humidity level of 75%. For more details on December weather in Zakynthos, you can check Zakynthos weather in December.
As summer transitions to autumn, September in Zakynthos presents a delightful blend of warmth and mildness, setting itself apart from the hotter, more humid peak months. With comfortably warm temperatures averaging around 25°C (77°F) and an inviting sea, it’s an ideal time for both relaxation and exploration. The slight increase in precipitation, with about five rainy days scattered throughout the month, brings freshness without dampening the spirit of adventure. While the humidity remains fairly moderate at 66%, the overall weather is notably more pleasant than the sweltering highs of July and August. For those considering a visit, September offers a sweet spot of favorable conditions. For more insights into the island's climate throughout the year, check out Zakynthos Climate.