September Weather in Naxos, Greece

Last updated: August 21, 2025

Experience the charming climate of Naxos, Greece, in September, where the average temperature hovers around 23°C (74°F), peaking at a pleasant 26°C (80°F) during the day. As summer gently fades, expect cozy evenings with lows of 19°C (67°F), making it an ideal time for outdoor activities. With only 3 mm of precipitation across a single day, sunshine prevails, accompanied by a 70% humidity that enhances the island's natural beauty. Whether lounging on stunning beaches or exploring quaint villages, September offers a perfect backdrop for memorable experiences in this enchanting Greek paradise.

September Temperature in Naxos

As summer gracefully transitions into autumn, September in Naxos, Greece offers a delightful climate that beckons visitors. With temperatures ranging from a comfortable 19°C (67°F) at night to a pleasant 26°C (80°F) during the day, the island enjoys a golden balance of warmth and coolness. The average temperature settles around 23°C (74°F), making it an ideal time for beachgoers and adventurers alike. As the heat of August begins to wane, the weather remains invitingly warm, providing a perfect backdrop for exploring the stunning landscapes and rich culture of this beautiful Cycladic island. September is truly a sweet spot where the summer vibe lingers, yet the crowds start to thin, enhancing the overall experience.

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

The chart illustrates September temperature patterns in Naxos, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Naxos, 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).
JanFebMarAprMayJunJulAugSepOctNovDec555757606672767674696459
Data source: Temperature data for Naxos generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Naxos

In September, Naxos experiences a notable shift as the summer dry spell begins to relent, but only slightly. The island receives a modest 3 mm (0.1 in) of precipitation over a mere one day, marking a refreshing change from the preceding months of drought. This light rainfall hints at the transition to autumn, where precipitation amounts gradually begin to increase. With just two rainy days predicted in October, the island maintains its reputation for a predominately dry climate, but these early September showers are a gentle reminder that the arrival of the cooler, wetter months is on the horizon. Overall, while September holds little rain compared to the winter months, it signals a subtle shift, paving the way for more diverse weather patterns ahead.

September Precipitation Trends in Naxos

The chart displays monthly precipitation patterns in Naxos, 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 Naxos, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec9256421532003144892
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Naxos

In September, Naxos experiences a shift in humidity levels, settling at a moderate 70%. This marks a notable decrease from the summer months, where humidity peaked at 81% in May and dipped to 66% by August. As autumn approaches, the air becomes crisper, though still retains a pleasant moisture that characterizes the island's charm. Throughout the year, humidity remains relatively stable, fluctuating between 66% and 81%, with most months hovering around the 76-77% range. This gradual transition in September reflects the islands' temperate climate, making it an inviting destination during this time of year as warm days give way to cooler nights.

September Average Humidity in Naxos

This chart illustrates the average monthly humidity levels in Naxos, 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 Naxos 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 Naxos

As summer begins to transition into fall, September in Naxos, Greece, still offers plenty of sunshine, reflected in its UV Index of 8, categorized as very high. This means that while the temperatures may start to cool, the risk of sunburn remains significant, necessitating proper sun protection with a burn time of just 15 minutes. Notably, September's UV levels are slightly lower than the peak of summer, which saw an intense UV Index of 10 in July and August. However, as it follows a trend of consistently high UV exposure throughout the warmer months, visitors should remain vigilant. Whether lounging on stunning beaches or exploring historical sites, understanding the UV trends is key to enjoying the beautiful sun safely. For more information on UV conditions throughout the year, check out Naxos UV Index.

Maximum UV Index Levels in Naxos for September

The chart shows the monthly maximum UV Index (UVI) for Naxos 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 Naxos typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356991010108643
Data source: Naxos 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 Naxos

September in Naxos, Greece, is a delightful bridge between the summer's peak brightness and the gentle embrace of autumn. With 351 hours of sunshine, this month continues to bask in the golden glow that characterizes the summer, though there is a noticeable softening from the sunny intensity of July's peak with 426 hours. As the days progressively shorten, September still offers plenty of warmth, ensuring that visitors can enjoy the beautiful beaches and picturesque landscapes before the cooler months set in. This transitional month embodies a perfect blend of lingering summer vibes while hinting at the tranquil beauty that the fall brings, making it an ideal time to explore this idyllic island.

Monthly Sunshine Duration in Naxos: September Highlighted

The September sunshine duration represents the total number of hours Naxos 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.
JanFebMarAprMayJunJulAugSepOctNovDec215h270h336h355h403h413h426h398h351h327h277h261h
Data source: Naxos September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Naxos During September

In September, Naxos, Greece, offers an impressive 93% chance of sunny weather, continuing the trend of vibrant days that peak in the summer months. Following a flawless August, where sunshine reigns supreme, the weather remains delightfully warm, making it an ideal time for beachgoers and outdoor enthusiasts alike. As the summer heat gradually begins to taper off, visitors can still enjoy long, sun-drenched days under clear skies. This remarkable likelihood of sunshine also highlights a consistent pattern of increasing daylight and warmth from the early months of the year, setting the stage for a perfect late-summer escape. Whether you’re planning a relaxing getaway or adventurous explorations, September's sunny disposition enhances the charm of this beautiful Greek island.

Percentage of Sunny Days in September in Naxos

The chart illustrates the percentage of sunny days in Naxos 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 Naxos experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%64%65%57%78%91%99%100%93%77%48%50%
Data source: Naxos September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Naxos in September

As summer gracefully transitions into autumn, September in Naxos, Greece, offers a delightful balance of sunshine, with 12 hours of daylight that gently beckons outdoor adventurers. Following the peaks of July and August, which boast a radiant 14 hours, September marks a slight reduction as the days begin to shorten. However, this gradual decline in daylight from the sun-drenched summer months still provides ample opportunity for exploration and relaxation. With each passing month, the light dims further—October and beyond bring 11 hours and then 10 hours of daylight. September stands as a bridge, allowing visitors to enjoy the lingering warmth and brightness before the onset of winter's shorter days.

Average Daylight Hours in Naxos for September

The chart illustrates the variation in daylight duration in Naxos throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 49m11h 58m13h 9m14h 9m14h 39m14h 23m13h 30m12h 22m11h 12m10h 10m9h 38m
Data source: Naxos daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Naxos

As September arrives in Naxos, Greece, the island experiences a refreshing shift in its prevailing winds, with an average wind speed of 8.4 m/s (19 mph), matching the brisk pace of March. This marks a notable uptick from the calmer summer months, where winds dipped to their lowest in June at just 5.5 m/s (12 mph). The slightly stronger September breezes evoke a sense of renewal and vitality, making it an ideal time for outdoor activities and exploring the island’s stunning landscapes. Following a trend of increasing winds late in summer, September offers a perfect balance of warmth and refreshing gusts, inviting both locals and visitors to embrace the beauty of the Aegean while enjoying the gentle, invigorating touch of the sea breeze.

Average September Wind Speed in Naxos

The chart displays monthly wind speed patterns in Naxos, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.18.08.47.05.85.58.37.48.4 m/s7.47.38.2
Data source: Naxos September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Naxos Compares to Other Months

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

September and January present a stark contrast in weather conditions. In September, temperatures generally range from a mild 19°C (67°F) to a warm 26°C (80°F), accompanied by relatively low precipitation of just 3 mm (0.1 in) on a single day. The humidity averages around 70%, creating a pleasant atmosphere for outdoor activities. In contrast, January experiences much cooler temperatures, with a minimum of 5°C (40°F) and a maximum of 20°C (68°F), alongside significantly higher precipitation totaling 92 mm (3.6 in) over 12 days. The humidity also rises to an average of 77%, contributing to a much wetter and cooler climate. For those looking to explore the differing seasonal experiences, you can check Naxos weather in January.

Comparing the weather in September and February reveals a striking contrast. September boasts much warmer temperatures, with averages around 23°C (74°F) and highs reaching 26°C (80°F), while February experiences cooler conditions, with average temperatures dropping to 14°C (57°F) and maxing out at 18°C (65°F). Additionally, February is significantly wetter, receiving about 56 mm (2.2 in) of precipitation over 8 days, compared to September's modest 3 mm (0.1 in) of rain on just 1 day. The humidity remains relatively high in both months, at 70% in September and slightly higher at 76% in February. For more detailed insights on February weather, you can visit Naxos weather in February.

September and March present distinctly different weather patterns. In September, temperatures range from a comfortable 19°C (67°F) at night to a warm 26°C (80°F) during the day, along with low precipitation—only about 3 mm (0.1 in) across just one day. The humidity is moderate at 70%, making it pleasant for outdoor activities. In contrast, March brings cooler temperatures, with minimums dropping to 5°C (41°F) and daily highs reaching only 18°C (65°F). This month experiences significantly more precipitation, averaging 42 mm (1.6 in) over seven rainy days, coupled with a slightly higher humidity level at 77%. For a detailed look at March conditions, check out Naxos weather in March.

In comparing the weather of September and April, September typically enjoys warmer temperatures, with a minimum of 19°C (67°F) and an average of 23°C (74°F), peaking at 26°C (80°F). In contrast, April is cooler, featuring a minimum temperature of 10°C (51°F) and an average of 16°C (61°F), with a maximum of 20°C (68°F). Additionally, September enjoys relatively low precipitation with only 3 mm (0.1 in) over 1 day, while April experiences more rain, recording 15 mm (0.6 in) over 2 days. Humidity levels are also slightly higher in April at 77%, compared to September's 70%. For more detailed insights, check out Naxos weather in April.

In September, the weather tends to be slightly warmer than in May, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 26°C (80°F). The humidity is moderately high at 70%, and there is minimal precipitation, with only about 3 mm expected over just one day. In contrast, May experiences cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 23°C (74°F). Although both months see a similar amount of precipitation at 3 mm, May boasts dry conditions with no recorded rainy days and higher humidity at 81%. For a more detailed look at May weather, check out Naxos weather in May.

In comparing the weather between September and June, we see similar temperature ranges, with September averaging a comfortable 23°C (74°F) and June slightly cooler at an average of 22°C (72°F). Both months showcase maximum temperatures reaching 26°C (79°F) to 26°C (80°F), providing warm days for outdoor activities. However, September experiences a slightly higher minimum temperature at 19°C (67°F) compared to June's 18°C (64°F). Precipitation is minimal in both months, with September registering 3 mm over 1 day, while June remains drier with no recorded precipitation. Humidity is higher in June at 77%, compared to September's 70%. For a more detailed look into June conditions, you can check out Naxos weather in June.

In comparing the weather of September to that of July, one can observe some notable differences. September tends to be slightly cooler, with minimum temperatures around 19°C (67°F), an average of 23°C (74°F), and a maximum of 26°C (80°F). In contrast, July boasts warmer temperatures, starting from a minimum of 21°C (71°F) and reaching a maximum of 28°C (82°F) with a consistent average of 24°C (76°F). Additionally, September experiences a touch of precipitation, with about 3 mm (0.1 in) over just one day, while July remains dry, recording no rainfall at all. Humidity levels remain similar, with September at 70% and July slightly higher at 71%. For more information about the weather conditions during July, you can visit Naxos weather in July.

In comparison to August, September experiences a slight drop in temperatures, with average highs of 26°C (80°F) compared to August's maximum of 29°C (85°F). While the minimum temperature in September is 19°C (67°F), August starts warmer at a minimum of 22°C (72°F). However, September brings a bit more precipitation, averaging 3 mm (0.1 in) over just one day, while August remains completely dry with no recorded rainfall. Humidity levels are also slightly higher in September at 70%, compared to 66% in August. For more details on the weather patterns during this time, you can check Naxos weather in August.

In September, the weather tends to be warm and pleasant, with average temperatures around 23°C (74°F) and minimal precipitation of just 3 mm over one day. The humidity sits at a comfortable 70%, making it a great time for outdoor activities. In contrast, October brings a slight drop in temperature, with averages around 20°C (69°F) and a higher precipitation level of 14 mm spread over two days. The humidity increases to 76%, making the air feel a bit more humid. For a closer look at what to expect this month, check out Naxos weather in October.

In September, the weather is generally warm and pleasant, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 26°C (80°F) and an average of 23°C (74°F). The month boasts low precipitation, with only 3 mm falling over just one day, alongside moderate humidity levels at 70%. In contrast, November sees a noticeable drop in temperatures, with minimums dipping to 12°C (54°F) and average highs around 18°C (64°F), reaching a maximum of 22°C (72°F). Precipitation increases significantly, totaling 48 mm over five days, and humidity rises to 77%. For more details on the weather specifics, you can check Naxos weather in November.

In September, the weather is warm and relatively dry, with average temperatures around 23°C (74°F) and only 3 mm of precipitation, making it an ideal time for outdoor activities. However, by December, temperatures drop significantly, with a chilly average of 15°C (59°F) and an increase in rainfall to 92 mm over 13 days, suggesting a shift towards a wetter climate. Despite the cooler temperatures and higher humidity of 78%, December's atmosphere carries its own charm. For more details on December weather, visit Naxos weather in December.

Compare Naxos's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Naxos

As summer transitions into autumn, September on Naxos offers a delightful reprieve from the intense heat of the peak season. With average temperatures comfortably hovering around 23°C (74°F), this month brings a pleasant warmth that is ideal for outdoor activities and beach lounging. While the humidity remains brisk at 70%, the overall atmosphere is enhanced by minimal rainfall, typically only experiencing a single day of rain throughout the month. This makes September a perfect choice for travelers seeking to enjoy the idyllic Mediterranean climate without the hustle and bustle of summer crowds. For a detailed outlook on what to expect throughout the year, explore the Naxos Climate.