Last updated: August 21, 2025
Discover the enchanting September weather in Oia, Greece, where visitors can bask in delightful warmth and picturesque views. With maximum temperatures reaching 27°C (82°F) and an average of 24°C (75°F), the climate is perfect for exploring the stunning landscapes and iconic sunsets. Enjoy the refreshing ambiance with minimum temperatures around 20°C (68°F), while a pleasantly low humidity level of 70% makes outdoor activities enjoyable. The month boasts virtually no rain with just 2 mm (0.1 in) of precipitation recorded across zero rainy days, ensuring clear skies and vibrant sunshine. Embrace the charm of Oia this September, where the weather complements your unforgettable experiences.
As the summer sun begins to soften, September in Oia, Greece offers a delightful transition with warmer temperatures that invite visitors to bask in its beauty. With minimums around 20°C (68°F) and averages peaking at 24°C (75°F), the weather remains pleasantly warm, perfect for leisurely strolls along the iconic cliffside paths. Daytime highs reach up to 27°C (82°F), ensuring plenty of sunshine to enjoy the stunning caldera views. This month strikes an ideal balance, as the peak tourist season winds down, leaving travelers with a serene atmosphere and the chance to soak in the enchanting Greek landscape in comfortable warmth.
September in Oia, Greece marks a notable transition in precipitation patterns as summer gives way to autumn. With just 2 mm (0.1 in) of rain recorded and no precipitation days, the month remains predominantly dry, continuing the trend set in the preceding summer months. This minimal rainfall is a stark contrast to the wetter conditions that accompany the fall, particularly in October and November, when precipitation averages rise significantly. As the landscape begins to shift, travelers can enjoy the lingering sun and beautiful views, while the promise of autumn rains looms just around the corner. Overall, September is a delightful encore of summer, offering warm days and clear skies before the seasonal changes unfold.
In September, Oia, Greece, experiences a pleasant drop in humidity to 70%, marking a shift from the summer’s drier months. This level of humidity is a subtle increase from the preceding month of August, which recorded 66%, yet remains lower than the spring and early summer months where readings hover around 77% or higher. Generally, Oia enjoys relatively consistent humidity throughout the year, with numbers typically ranging from 66% in August to 81% in May. Overall, September offers a comfortable balance, paving the way for cooler autumn days while still embracing the lingering warmth of summer.
As summer fades into autumn, the UV Index in Oia, Greece shows a slight decline, yet still maintains a very high rating of 8 in September, with a burn time of just 15 minutes. This trend highlights the importance of sun protection as the season transitions, following a peak of consistent 10 ratings during the summer months of June, July, and August. Despite the drop from the intense summer rays, visitors should remain vigilant, as the UV Index is still considerably high, comparable to March's 7 and October's return to 6, making September a notable month for outdoor activities under the sun. For detailed information on daily variations, refer to the comprehensive Oia UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Oia, Greece, enjoys a splendid 350 hours of sunshine—a vibrant continuation of the long, sun-soaked days preceding it. This month showcases a remarkable decline in daylight compared to July's peak of 424 hours, yet it still outshines the chillier months that follow. The sunlight gently bathes the iconic white-washed buildings and azure waters, casting a warm glow that invites visitors to revel in the fading summer atmosphere. With September's daylight comfortably nestled between the radiant heights of June and August, it provides the perfect backdrop for exploring the island's stunning landscapes before the onset of autumn's embrace.
September in Oia, Greece, provides a fabulous opportunity for sun seekers, boasting a stunning 95% chance of sunny weather. As summer wanes, the prevailing trend shows that sunny days remain abundant—following a peak of 100% in August and a high of 99% in July. This consistency underscores Oia's reputation as a splendid destination for those wishing to bask in sunshine even as the season transitions into autumn. With the pleasant warmth of early fall, visitors can still enjoy the picturesque landscapes and vibrant sunsets without the summer crowds, making September an ideal time for a getaway.
As September unfolds in Oia, Greece, daylight begins to gently wane, offering around 12 hours of sunlight each day. This marks a subtle transition from the high summer peaks of 14 hours enjoyed in June through August, illustrating the gradual shift towards autumn. The changes in daylight duration create a picturesque backdrop for visitors, as the warm Mediterranean sun paints the sky with vibrant hues. With daylight decreasing, September invites a more tranquil experience, making it an ideal time to savor the scenic beauty and rich culture of this enchanting island before the days shorten further into October.
As summer transitions to autumn, September in Oia, Greece, brings a delightful shift in the air with an average wind speed of 8.1 m/s (18 mph). This notable uptick from the summer months, particularly the gentle breezes of June and July, invigorates the vibrant island atmosphere. The winds in September are stronger than those in May and June but remain mellow compared to the gusts that will arrive later in the year. This balance creates a perfect backdrop for leisurely strolls through the charming streets, where the warm sun feels complemented by the refreshing breeze, enhancing the stunning views of the caldera. Thus, September is truly a magical time to experience the beauty of Oia, as nature's elements harmoniously converge.
Weather in Oia varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Oia, focusing on differences in temperature, rainfall, humidity, and UV levels.
September boasts warm temperatures, with daily averages around 24°C (75°F) and a maximum of 27°C (82°F), making it the perfect time for outdoor activities. In contrast, January experiences a significant drop in temperatures, averaging just 13°C (56°F) and reaching a maximum of 20°C (68°F). Additionally, September is quite dry, with only 2 mm (0.1 in) of precipitation over the month, while January sees much more rain, totaling 76 mm (3.0 in) and spread over 11 days. The humidity also rises slightly in January, reaching 77%, compared to September's 70%. For more details, you can check out Oia weather in January.
In comparing the weather in September and February, September boasts warmer temperatures, with a minimum of 20°C (68°F) and an average of 24°C (75°F), while February sees much cooler conditions with a minimum of 7°C (44°F) and an average of 14°C (58°F). Precipitation is minimal in September, recording only 2 mm (0.1 in) and no rainy days, in stark contrast to February, which experiences 58 mm (2.3 in) of rain over 8 rainy days. Additionally, humidity levels are slightly higher in February at 76%, compared to 70% in September. For more detailed information, you can check Oia weather in February.
September offers a warm and pleasant climate with average temperatures ranging from a minimum of 20°C (68°F) to a maximum of 27°C (82°F). This month sees very little precipitation, with only 2 mm and no rainy days, while humidity levels are moderate at 70%. In contrast, March presents a cooler environment, with average temperatures between 6°C (44°F) and 18°C (65°F) and significantly higher precipitation of 44 mm over six rainy days. The humidity in March is slightly higher at 77%. Overall, September is ideal for outdoor activities in warm weather, while March indicates the transition into spring with cooler temperatures and more rainfall. For specific weather conditions, you can check Oia weather in March.
September and April present distinct contrasts in weather. In September, temperatures are generally warm, with a minimum of 20°C (68°F), an average of 24°C (75°F), and a maximum of 27°C (82°F). The month experiences very little precipitation, with only 2 mm (0.1 in) and no rainy days, along with a moderate humidity level of 70%. In contrast, April is much cooler, starting at a minimum of 11°C (51°F) and peaking at a maximum of 20°C (69°F), with an average of 16°C (61°F). This month sees more precipitation, totaling 17 mm (0.7 in) over two rainy days, and brings higher humidity at 77%. These differences highlight the transition from late summer warmth in September to the more temperate and occasionally damp conditions of April. For more information on April weather specifics, check out Oia weather in April.
In comparing the weather in September and May, we see that September enjoys warmer temperatures overall, with a minimum of 20°C (68°F) and an average of 24°C (75°F), peaking at 27°C (82°F). In contrast, May presents cooler conditions, with a minimum of 15°C (60°F) and an average of 19°C (67°F), reaching a maximum of 24°C (75°F). While both months experience low precipitation, May has slightly more at 4 mm (0.2 in) compared to September's 2 mm (0.1 in), although both months have zero rainy days. Additionally, the humidity in May is higher at 81%, compared to September's 70%. For more specific insights, you can check Oia weather in May.
In comparing the weather of September and June, both months feature similar maximum temperatures, reaching around 27°C (80°F to 82°F). However, September tends to be slightly warmer on average with temperatures around 24°C (75°F), compared to June's average of 23°C (73°F). Precipitation is minimal in both months, with September receiving only 2 mm and June a bit more at 3 mm, yet neither month has recorded any rainy days. Humidity levels are higher in June at 77%, compared to September's 70%, making the latter feel a bit more comfortable. For more detailed insights, see Oia weather in June.
In comparing the weather between September and July, both months exhibit warm temperatures with minimal precipitation. September tends to have slightly cooler temperatures, featuring a minimum of 20°C (68°F) and an average of 24°C (75°F), while July showcases a higher minimum of 22°C (72°F) and an average of 25°C (77°F). Both months enjoy dry conditions, with September recording just 2 mm of precipitation and July experiencing none at all. The humidity levels are comparably similar; September sits at 70%, while July is at 71%. For more information on July weather specifically in Oia, you can visit Oia weather in July.
In comparing the weather of September and August, September generally presents slightly cooler temperatures, with minimums of 20°C and an average of 24°C, compared to August's minimum of 22°C and average of 25°C. Additionally, September experiences a maximum of 27°C, which is lower than August's peak of 30°C. Both months see minimal precipitation, with only 2 mm recorded in September and just 1 mm in August, and neither month has any rainy days. Humidity levels also differ slightly, with September at 70% compared to August's 66%. For more detailed information, you can check Oia weather in August.
September typically boasts warmer temperatures, with a minimum of 20°C and an average of 24°C, making it a comfortable month for outdoor activities. The weather remains relatively dry, with only 2 mm of precipitation and no rainy days, alongside a humidity level of 70%. In contrast, October experiences slightly cooler temperatures, with a minimum of 16°C and an average of 21°C. This month also sees an increase in rainfall, totaling 14 mm over two days, resulting in a humidity rise to 76%. For more details on the weather in this region during October, check out Oia weather in October.
In September, the weather is warm and pleasant, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 27°C (82°F) and an average of 24°C (75°F). With only 2 mm of precipitation and no rainy days, the humidity sits at a comfortable 70%. By contrast, November experiences cooler temperatures, with a minimum of 13°C (55°F), an average of 18°C (65°F), and a maximum of 23°C (73°F). This month also sees increased rainfall, totaling 41 mm over 5 days, and slightly higher humidity levels at 77%. For a detailed look at November weather in Oia, visit Oia weather in November.
In September, the weather is warm and pleasant, with average temperatures hovering around 24°C (75°F) and maximums reaching up to 27°C (82°F). The month boasts very little precipitation, making it ideal for outdoor activities, with humidity levels around 70%. In contrast, December brings a significant drop in temperature, with averages falling to 15°C (60°F) and maximums only reaching 20°C (68°F). This month is much wetter, experiencing approximately 72 mm (2.8 in) of precipitation over 12 days, accompanied by slightly higher humidity at 78%. For more details, you can check Oia weather in December.
As summer gracefully transitions into fall, September in Oia offers a delightful escape with mild temperatures and minimal rainfall, making it a perfect month for outdoor exploration. Unlike the sweltering heat of July and August, September boasts comfortable conditions that invite leisurely strolls through the charming streets and breathtaking views of the caldera. With humidity levels at a manageable 70%, the air feels refreshing rather than oppressive. Travelers can relish in the vibrant sunsets and the quieter island, enjoying the uniquely tranquil atmosphere that September brings. For further details about the climate, check out Oia Climate.