Last updated: August 21, 2025
Experience the charm of Mykonos, Greece in September, where the weather is a delightful blend of warmth and sunshine. With maximum temperatures reaching a pleasant 27°C (81°F), and an average of 23°C (74°F), visitors can revel in ideal beach conditions. The minimum temperature rarely dips below 19°C (66°F), ensuring comfortable evenings. Adding to the allure, rainfall is minimal, with only 5 mm (0.2 in) recorded and no rainy days to disrupt your plans. With humidity at 70%, the air carries a refreshing Mediterranean breeze, making this month a perfect time for outdoor adventures and relaxation by the sea.
September in Mykonos, Greece, offers a delightful transition into autumn, characterized by mild temperatures that invite outdoor exploration. As the summer heat begins to wane, the island experiences average temperatures of 23°C (74°F), with daytime highs reaching around 27°C (81°F). The minimum temperatures hover at a comfortable 19°C (66°F), making it ideal for evening strolls along the vibrant waterfront. This month serves as a sweet spot for travelers, as the lingering warmth of summer allows for enjoyable beach days, while the crowds start to thin, enhancing the serene atmosphere of this iconic destination.
In Mykonos, September marks a subtle transition from the hot summer months to the gentle embrace of autumn. With only 5 mm (0.2 in) of precipitation, it's one of the driest months of the year, alongside July and August, which both see zero precipitation days. The warm, sun-kissed days continue, allowing visitors to soak up the last rays of summer without the interruption of rain. This dry spell sets the stage for the upcoming months, where precipitation begins to rise again, particularly in October and November, signaling a shift towards the wetter season ahead. Despite the minimal rainfall, September still offers a vibrant atmosphere, perfect for enjoying the island's rich culture and stunning landscapes.
September in Mykonos welcomes a gentle shift in humidity, averaging around 70%. This marks a drop from the summer peak levels of 66% in August, providing a comfortable embrace as the sweltering heat gives way to milder autumn days. Throughout the year, humidity tends to hover between 66% and 81%, with January through May showcasing some of the highest figures, while July and August experience a refreshing dip. As the island transitions into fall, September’s moderate humidity allows for enjoyable outdoor pursuits, making it an ideal time for travelers seeking a balance between warm sunshine and refreshing breezes.
In September, Mykonos experiences a UV Index of 8, indicating very high sun exposure, with a burn time of just 15 minutes. This marks a slight decrease from the peak UV levels of the summer months, which consistently reached 10 from June through August. As summer transitions into autumn, while the UV intensity softens a bit, visitors should still exercise caution, as the sun remains potent throughout the month. This trend mirrors the broader pattern observed in the island's UV Index, where exposure begins moderate in winter (index 3) and escalates dramatically in the warmer months before tapering off again by October. For more detailed insights on daily UV predictions, check out the Mykonos UV Index.
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In September, Mykonos experiences a delightful transition as summer subtly wanes, offering a serene escape with 350 hours of sunshine. This month sees a gentle decline from the sun-drenched peak of 426 hours in July, signaling the end of peak tourist season while still boasting ample sun for outdoor adventures. As the vibrant summer crowds begin to ease, the island's stunning beaches and charming streets remain inviting, making it the perfect time to relish the fading warmth of the sun. With October's shorter days approaching, September serves as a beautiful bridge, maintaining a balance of light and leisure before autumn sets in, ensuring that every sun-drenched moment is cherished under the captivating Mykonian sky.
September in Mykonos, Greece, continues the summer trend of abundant sunshine, boasting an impressive 91% chance of sunny days. As the peak of August wraps up with a striking 99% probability of sun, September offers a gentle transition into the fall season while still retaining the warmth and radiance of summer. This makes it an ideal time for travelers who wish to bask in the golden glow of the Mediterranean without the peak season crowds. Following the high summer months, the sun's presence begins to wane slightly, but September remains a bright and cheerful month, ensuring that visitors can enjoy plenty of beautiful days on the island.
As summer gently transitions into autumn, September in Mykonos, Greece, offers a delightful balance of daylight, providing approximately 12 hours of sun each day. This is slightly less than the earlier months of peak summer, where sunlight bathed the island for up to 14 hours in June through August. However, the gradual decrease in daylight doesn't diminish the charm of the island; instead, it enhances the experience, inviting visitors to bask in the warm hues of the setting sun. The 12 hours of daylight in September still creates ample opportunities to enjoy Mykonos' stunning beaches and vibrant nightlife, making it an ideal time for those looking to savor the last remnants of summer. As October approaches, daylight will continue to wane, marking the beautiful transition from the vibrant summer days to the softer, cozier ambiance of fall.
As summer gracefully transitions into autumn, September in Mykonos is characterized by invigorating winds that reach an average speed of 8.7 m/s (20 mph), the highest of the year. This increase in wind velocity not only invigorates the atmosphere but also enhances the island's enchanting beauty, creating a perfect backdrop for outdoor adventures. Following a summer of gentle breezes, the wind picks up again in September after a moderate August, signaling the end of the peak tourist season while inviting visitors to enjoy the island's vibrant charm with a refreshing twist. As the temperature cools, the winds sweep across the landscape, making it an ideal time for sailing and exploring Mykonos’ stunning coastline.
Weather in Mykonos varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mykonos, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present a striking contrast in weather. In September, temperatures are comfortably warm, with a minimum of 19°C (66°F) and an average of 23°C (74°F), reaching a maximum of 27°C (81°F). This month experiences little rainfall, with just 5 mm of precipitation and no rainy days, coupled with a moderate humidity of 70%. In stark contrast, January is much cooler, featuring a minimum temperature of 4°C (39°F), an average of 12°C (55°F), and a maximum of only 19°C (67°F). This winter month sees a significant increase in precipitation, totaling 97 mm over 12 days, and a higher humidity level of 77%. For more details about the January weather, you can check Mykonos weather in January.
When comparing the weather in September and February, there's a noticeable contrast. September enjoys warmer temperatures, with averages around 23°C (74°F) and highs reaching up to 27°C (81°F). Additionally, this month has minimal precipitation and relatively low humidity at 70%. In stark contrast, February is much cooler, with average temperatures only around 13°C (56°F) and maximums of 18°C (64°F). Precipitation is also significantly higher in February, with 41 mm (1.6 in) spread over about 8 days, contributing to an increased humidity level of 76%. For more detailed insights, check Mykonos weather in February.
In comparing the weather between September and March, we see a significant contrast. September tends to be much warmer, with average temperatures around 23°C (74°F) and highs reaching up to 27°C (81°F), while March experiences cooler averages of just 14°C (57°F) and maximums of 17°C (63°F). Additionally, September boasts very low precipitation with only 5 mm and no rainy days, creating a dry and pleasant atmosphere, whereas March is marked by increased rainfall of 44 mm over six days, contributing to a humidity level of 77%. For more detailed information, check out Mykonos weather in March.
When comparing the weather in September and April, distinct differences emerge. In September, temperatures are notably warmer, ranging from a minimum of 19°C (66°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). The month boasts very little rainfall, with only 5 mm (0.2 in) spread over no days, and the humidity sits at a comfortable 70%. In contrast, April experiences cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 20°C (68°F), averaging 15°C (60°F). Rain is more prevalent during this month, with a total of 20 mm (0.8 in) falling over three days, and humidity is slightly higher at 77%. For more detailed information, you can check Mykonos weather in April.
In September, the weather tends to be warmer with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 27°C (81°F). During this month, there is little to no precipitation, with only 5 mm recorded, and the humidity sits at a comfortable 70%. In contrast, May experiences cooler temperatures, averaging between 15°C (58°F) and 23°C (74°F), and has slightly higher humidity levels at 81%. Although May has a minimal precipitation of 4 mm over one day, it still offers a pleasant climate for outdoor activities. For those interested in more detailed weather insights, you can check Mykonos weather in May.
In comparing the weather between September and June, both months share a similar maximum temperature of 27°C (81°F), but September boasts a slightly warmer average temperature of 23°C (74°F) compared to June's 22°C (72°F). September also sees minimal precipitation, with only 5 mm (0.2 in) recorded over 0 days, making it a drier month than June, which experiences 3 mm (0.1 in) over 1 day. Humidity levels are a bit higher in June at 77%, versus September's 70%, suggesting that while both months are pleasant, September tends to be warmer and drier. For more details on the weather patterns, visit Mykonos weather in June.
When comparing the weather in September to July, September tends to be slightly cooler with average temperatures ranging from 19°C (66°F) to a maximum of 27°C (81°F), while July offers warmer conditions with temperatures from 21°C (71°F) to a peak of 29°C (85°F). Humidity levels are quite similar in both months, hovering around 70-71%. Additionally, September experiences minimal precipitation, receiving just 5 mm (0.2 in), while July remains completely dry with no recorded rainfall at all. For more details about the conditions in July, you can check Mykonos weather in July.
In September, the weather in Mykonos begins to transition into slightly cooler temperatures, with a minimum of 19°C (66°F) and an average of 23°C (74°F), compared to August's warmer minimum of 22°C (71°F) and average of 25°C (77°F). The maximum temperatures in September peak at 27°C (81°F), slightly lower than August's maximum of 29°C (85°F). Additionally, September experiences minimal precipitation, with just 5 mm over 0 days, while August remains completely dry with 0 mm of rainfall. Humidity levels also rise slightly in September to 70%, compared to 66% in August. For more details on August conditions, check out Mykonos weather in August.
In September, the weather is typically warm and pleasant, with average temperatures hovering around 23°C (74°F) and maximums reaching up to 27°C (81°F). This month also sees very little precipitation, averaging just 5 mm over the course of the month, contributing to a relatively dry atmosphere with humidity at 70%.
Conversely, October brings a noticeable shift in weather patterns. The average temperature drops to 20°C (69°F), with daytime highs of 25°C (78°F) and nighttime lows reaching 15°C (58°F). Additionally, October experiences more rainfall, totaling around 20 mm over approximately two days, accompanied by a slight increase in humidity to 76%. For more specifics on what to expect, check out Mykonos weather in October.
September and November showcase a notable transition in weather patterns. In September, the temperatures are warmer, with a minimum of 19°C (66°F) and an average of 23°C (74°F), while November sees cooler temperatures, dropping to a minimum of 12°C (53°F) and an average of 17°C (64°F). Additionally, precipitation levels rise dramatically in November, with 44 mm (1.7 in) over six days, contrasting sharply with September's dry conditions, which record just 5 mm (0.2 in) with no rainy days. Humidity also increases slightly in November to 77%, compared to September’s 70%. For more detailed information on November weather, you can visit Mykonos weather in November.
In September, the weather is warm and pleasant, with average temperatures hovering around 23°C (74°F) and a minimal chance of rain, as evidenced by just 5 mm of precipitation over the entire month. The humidity is relatively high at 70%, giving the month a tropical feel. In contrast, December sees a significant drop in temperatures, with averages of 15°C (59°F) and a maximum of only 20°C (69°F). Additionally, December experiences much higher rainfall, with 86 mm spread over 12 days, and humidity rising to 78%. For more details, you can check Mykonos weather in December.
September in Mykonos ushers in a delightful transition from the peak summer heat, offering a perfect balance of warm sunshine and mild evenings. With temperatures averaging around a comfortable 23°C (74°F), visitors can bask in pleasant days and enjoy the vibrant sunsets without the scorching intensity of July and August. Notably, with virtually no precipitation and a refreshing 70% humidity, the island remains inviting for both relaxation and adventure. This idyllic weather, combined with fewer crowds, makes September an ideal month for exploring the island's stunning landscapes and vibrant nightlife. For a detailed look at weather patterns throughout the year, explore the Mykonos Climate page and make the most of your trip!