Last updated: August 21, 2025
Experience the September weather in Irakleion, Greece, where the maximum temperature can soar up to an impressive 37°C (99°F), creating a warm and inviting atmosphere. The average temperature settles around a pleasant 23°C (74°F), while the evenings cool off to a comfortable 14°C (58°F). With only 16 mm (0.6 in) of precipitation over 2 days, the month is predominantly dry, though occasional light showers may occur. Visitors should prepare for a humid environment, with levels reaching up to 80%, making the balmy Mediterranean climate feel even more vibrant. Enjoy the blend of warmth and coastal charm that characterizes this stunning destination.
In September, Irakleion experiences a delightful transition as summer begins to fade, characterized by a minimalist warmth that still beckons travelers to the coast. With average temperatures resting around 23°C (74°F), the city remains pleasantly warm, offering a perfect blend of sunny days and cooler evenings. The daily highs can reach up to 37°C (99°F), providing ample opportunity for outdoor adventures, while nighttime temperatures drop to a comfortable 14°C (58°F), inviting relaxation under the stars. This month strikes an ideal balance, making it one of the best times to explore the rich culture and stunning landscapes of this charming Greek destination before the cooler autumn sets in.
In September, Irakleion, Greece experiences a transitional phase in its precipitation pattern, with only 16 mm (0.6 in) of rain over two days—a noticeable increase from the parched summer months of July and August. This is a marked shift from the preceding months, which saw minimal rainfall, highlighting the region's gradual move toward a wetter autumn. September's relatively low precipitation serves to bridge the dry summer with the wetter spell of October, where rainfall increases to 38 mm (1.5 in), suggesting a clear trend toward more frequent and heavier showers as the season progresses. As the warm days of late summer fade, the weather in Irakleion begins to embrace a more varied and lush climate, setting the stage for the rich landscapes of fall.
In Irakleion, Greece, September ushers in a shift in humidity, with levels hovering around 80%. This figure is a slight dip from the more humid summer months, peaking at 85% in May, but still reflects a noticeable level of moisture in the air. As the season transitions, this moderate humidity level provides a comfortable climate for both locals and visitors. Observing the year as a whole, one can see a gradual increase in humidity from the winter months, maintaining relatively high percentages through July and August, before gently tapering off into fall. The overall trend suggests that while September retains significant humidity, it also marks the beginning of a cooling, less oppressive atmosphere as summer wanes.
As September unfolds in Irakleion, Greece, the UV Index remains notably high at 9, placing it in the very high exposure category where sun safety becomes essential. With a recommended burn time of just 15 minutes, the late summer sun continues to demand respect as the days gradually shorten. This slight decrease from the extreme levels seen in the peak summer months of July and August signals a transition to more moderate sun exposure, yet caution is still advised. As daylight lingers and outdoor activities beckon, it’s pivotal to remain vigilant about sun protection. For more detailed insights, check out the Irakleion UV Index.
UV Risk Categories
As summer gracefully gives way to autumn, September in Irakleion, Greece still basks in the glow of abundant sunshine, with an impressive 350 hours of sunlight. This month stands as a transition, showcasing the remnants of summer's brilliance while hinting at the cooler days to come. Comparing it to the peak sunshine months of July and June, which boast 422 and 408 hours respectively, September retains a generous amount of sunlight, making it an ideal time for outdoor adventures and exploring the rich history of the region. As daylight hours begin to wane in the months following, with October and November seeing a decline to 319 and 268 hours, September serves as a sweet spot where warmth and light linger, inviting visitors to relish in the idyllic Mediterranean charm before the fall sets in.
As summer transitions to autumn in Irakleion, Greece, September continues to showcase an impressive likelihood of sunny weather, boasting an 88% chance of sunshine. This marks a slight dip from the peak months of July and August, which enjoy nearly constant sunlight, yet it remains one of the sunniest months of the year. Compared to the early months of the year, where cloud cover tends to dominate, September offers a delightful blend of warmth and clear skies, making it an ideal time for visitors to bask in the Mediterranean sun before the cooler autumn air sets in. Overall, the tail end of summer still promises plenty of golden days, perfectly capturing the essence of Greek outdoor living.
As summer gracefully transitions into autumn, September in Irakleion, Greece offers a delightful balance of daylight, with approximately 12 hours for basking in the sun. Following a peak of 14 hours during the heart of summer in June and July, the days begin to shorten slightly— a gentle reminder of the approaching fall. This gradual decrease in daylight is a continuation of the trends observed earlier in the year, where March kicks off the season of longer days at 11 hours, blooming into the abundant light of May and June. By the time October arrives, daylight will dip again to 11 hours, paving the way for a cozy winter. Overall, September stands out as a charming month, allowing both locals and visitors to enjoy the warm sun before it fades into the cooler months.
As September arrives in Irakleion, Greece, the gentle caress of the wind continues to grace the island, with an average speed of 2.8 m/s (6 mph). This slight boost in wind speed follows the summer months, where July boasts the highest gusts at 3.1 m/s (7 mph), before tapering off slightly in August and maintaining a steady rhythm into September. Throughout the year, the wind patterns show notable consistency, typically ranging between 2.1 and 3.1 m/s, creating a pleasant backdrop for outdoor activities. As the days grow shorter and autumn approaches, the September breeze seamlessly transitions from the warm embrace of summer to the more refreshing touch of fall, offering both locals and visitors a refreshing escape as they explore the charming coastal landscape.
Weather in Irakleion varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Irakleion, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is markedly warmer, with average temperatures around 23°C (74°F) and highs reaching up to 37°C (99°F), making it a hot month characterized by high humidity at 80%. This month experiences minimal rainfall, with only about 16 mm (0.6 in) typically falling over just two days. In contrast, January presents a much cooler climate, with average temperatures around 10°C (51°F) and a maximum of 24°C (76°F), while nighttime lows can drop to -1°C (30°F). This winter month is wetter, cumulative precipitation amounts to 60 mm (2.4 in) over approximately 12 days, and humidity levels are slightly lower at 72%. For more details on January weather, check out Irakleion weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a minimum of 14°C (58°F) to a maximum of 37°C (99°F), with an average of 23°C (74°F). The month experiences relatively low precipitation, totaling just 16 mm (0.6 in) over 2 days, and maintains high humidity levels at 80%. In contrast, February sees much cooler temperatures, featuring a minimum of 2°C (37°F) and a maximum of 21°C (71°F), with an average temperature of 11°C (52°F). Precipitation is significantly higher during this month, amounting to 66 mm (2.6 in) over 8 days, alongside a lower humidity level of 72%. For more detailed information, you can visit Irakleion weather in February.
In September, the weather is typically warm, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 37°C (99°F) and an average of 23°C (74°F). The month experiences minimal precipitation, with only 16 mm (0.6 in) over about 2 days, and humidity levels are relatively high at 80%. In contrast, March sees cooler temperatures, starting from a minimum of 3°C (38°F) and reaching up to 25°C (77°F), with an average temperature of 12°C (54°F). This month is wetter, receiving 58 mm (2.3 in) of rain over approximately 9 days, and humidity is slightly lower at 75%. For more detailed insights into March weather, check out Irakleion weather in March.
When comparing the weather in September and April, it’s evident that September tends to be warmer, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 37°C (99°F), compared to April's cooler range of 7°C (44°F) to 32°C (89°F). September also experiences significantly less precipitation, with only 16 mm (0.6 in) over just 2 days, while April sees 32 mm (1.3 in) of rain across 5 days. Humidity levels are relatively similar, with September at 80% and April slightly lower at 79%. For more detailed information on April's weather, you can visit Irakleion weather in April.
In September, the weather tends to be warmer, with average temperatures reaching around 23°C (74°F) and maximums climbing to 37°C (99°F), compared to May's average of 20°C (68°F) and maximum of 38°C (100°F). Although September is generally drier, receiving only 16 mm (0.6 in) of precipitation over 2 days, May experiences a wetter climate with 38 mm (1.5 in) of rain over 4 days. Humidity levels are relatively high in both months, with September at 80% and May slightly higher at 85%. For more details on May weather patterns, you can check out Irakleion weather in May.
In comparing the weather of September and June, one can observe that both months feature a similar average temperature of 23°C (74°F), but September tends to have slightly higher maximum temperatures, reaching up to 37°C (99°F) compared to June's peak of 35°C (95°F). Precipitation is generally less in September, with only 16 mm (0.6 in) over 2 days, while June experiences more rain at 26 mm (1.0 in) across 4 days. Additionally, humidity levels are quite close, with September at 80% and June slightly higher at 84%. For more detailed information, you can check Irakleion weather in June.
In comparing the weather between September and July, we notice some interesting trends. July tends to be warmer, with an average temperature of 26°C (78°F) compared to September’s average of 23°C (74°F). However, both months share a maximum temperature of 37°C (99°F in September and 100°F in July). Precipitation levels are slightly higher in July at 21 mm (0.8 in) over just one day, while September sees less rain at 16 mm (0.6 in) over two days. Humidity is also marginally lower in September at 80%, compared to 83% in July. For more details, you can check out the Irakleion weather in July.
In comparing the weather of September and August, September experiences a slightly lower temperature range, with minimums of 14°C (58°F) and maximums of 37°C (99°F), while August features a warmer range, with minimums of 19°C (67°F) and maximums reaching 39°C (103°F). The average temperature in September is also cooler at 23°C (74°F) compared to August's 26°C (78°F). Both months see minimal precipitation, with September recording 16 mm (0.6 in) over 2 days and August having just 10 mm (0.4 in) over 1 day. Humidity levels remain high in both months, with September at 80% and August slightly higher at 81%. For more details, you can check Irakleion weather in August.
September and October present notable contrasts in weather conditions. September enjoys warmer temperatures with a minimum of 14°C (58°F) and an average of 23°C (74°F), reaching a peak of 37°C (99°F). In this month, there's relatively low precipitation at just 16 mm (0.6 in) over only 2 days, accompanied by high humidity levels at 80%. In contrast, October sees cooler temperatures with a minimum of 10°C (50°F) and an average of 19°C (67°F), with a maximum of 33°C (92°F). This month experiences increased rainfall, totaling 38 mm (1.5 in) across 6 days, while humidity remains slightly lower at 77%. For more detailed information, you can check Irakleion weather in October.
September weather is characterized by warmer temperatures, with averages around 23°C (74°F) and a maximum reaching up to 37°C (99°F), creating a hot and humid atmosphere with 80% humidity. In contrast, November brings about a significant drop in temperatures, averaging around 16°C (61°F) and peaking at 27°C (81°F). Additionally, November experiences more rainfall, totaling 60 mm (2.4 in) over 8 days, compared to the much drier September, which sees only 16 mm (0.6 in) over just 2 days. For more detailed information about the weather during this month, you can refer to Irakleion weather in November.
September weather is characterized by warm temperatures, with a minimum of 14°C (58°F) and an average high reaching up to 37°C (99°F), making it ideal for outdoor activities. In contrast, December brings a significant drop in temperatures, with a minimum of 4°C (40°F) and an average high of 22°C (71°F), creating a cooler atmosphere. Additionally, September experiences only 16 mm (0.6 in) of precipitation over just 2 days, while December sees much higher rainfall totaling 69 mm (2.7 in) spread across 12 days. Despite the increased precipitation, December's humidity is slightly lower at 72% compared to September's 80%, contributing to a less muggy feel during the cooler winter month. For more detailed information, you can check the Irakleion weather in December.
As summer transitions into fall, September in Irakleion presents a delightful blend of warm temperatures and moderate humidity. With daytime highs that can reach up to a sizzling 37°C, this month is typically warmer than the cooler months that follow, yet still offers a comfortable average of 23°C for those looking to enjoy the outdoors. Notably, precipitation is minimal, with only a couple of days of rain, making it one of the drier months in comparison to the wetter autumn and winter seasons. This combination of warmth and low rainfall creates an ideal environment for exploring the historic beauty of the region. For more detailed insights on the area's climate throughout the year, take a look at the Irakleion Climate.