Last updated: August 21, 2025
In Piraeus, Greece, October brings a delightful mix of warmth and refreshing breezes, with maximum temperatures reaching up to 31°C (89°F) and an average of 19°C (66°F). As the month unfolds, the days become cooler, with minimum temperatures dipping to 7°C (45°F). Although October sees approximately 30 mm (1.2 in) of rainfall spread over just 4 days, the humidity level hovers around 72%, adding a touch of Mediterranean charm to this vibrant port city. As you explore Piraeus during this picturesque month, embrace the pleasant weather and the captivating outdoor experiences it offers.
In October, Piraeus, Greece, experiences a delightful shift in temperatures as the summer heat recedes. With minimum temperatures around 7°C (45°F) and averages peaking at 19°C (66°F), the city's climate becomes pleasantly mild, perfect for exploring its rich history and stunning seaside. The maximum temperatures can reach up to 31°C (89°F), providing just enough warmth to enjoy outdoor activities without the sweltering extremes of the earlier months. This transitional month marks a significant drop from the highs of September and carries a refreshing breeze that hints at the approaching winter, making October a wonderful time to visit and soak in the vibrant atmosphere of this bustling port city.
In October, Piraeus experiences a notable increase in precipitation, with 30 mm (1.2 in) of rain over approximately 4 days. This marks a shift from the dry summer months, where August recorded an almost negligible 4 mm, to a more moderate rainfall pattern as autumn settles in. The gradual rise in precipitation continues into November, suggesting a transitional phase into the wetter winter season. Compared to the earlier months of the year, October's rainfall is relatively mild, yet it serves as a reminder of the impending changes in weather dynamics. With the autumn skies bringing refreshing showers, Piraeus beautifully showcases the seasonal shift, inviting a more varied tapestry of colors and landscapes.
In October, Piraeus, Greece, experiences an average humidity of 72%, indicative of a mild and comfortable transition into autumn. This level is a slight uptick from the drier summer months, where humidity dipped to its lowest at 63% in August and 68% in July. Notably, the humidity in October stays consistent with the overall trend of the preceding months, fluctuating around the mid-70s percentile range from November to March. As the cooler, wetter months approach, October serves as a gentle reminder of nature's rhythms, bridging the transition from the warm embrace of summer to the refreshing chill of winter.
In October, Piraeus, Greece experiences a UV Index of 7, placing it in the high exposure category. As the summer sun begins to wane, the burn time increases to about 25 minutes, offering a slight reprieve compared to the intense 15-minute burn times of the peak summer months. This trend indicates that while October still demands caution due to significant UV levels, the risk is lower than during the hottest months, such as June through August, when the UV Index consistently reached a maximum of 10. As autumn sets in, residents and visitors alike can enjoy outdoor activities with careful sun protection, making it a pleasant time to explore the beauty of Piraeus. For more information, you can check the detailed Piraeus UV Index.
UV Risk Categories
As October unfolds in Piraeus, Greece, the city begins to mellow with 313 hours of sunshine, marking a gentle decline from the sun-drenched peak of summer. Following a vibrant season where July and June basked in over 400 hours of sunshine, October offers a bittersweet transition to cooler days while still providing a generous amount of sunlight. This month serves as a bridge between the summer's enthusiasm and the tranquil charm of the autumn months, with September tapering off at a similar but slightly higher 346 hours. As the daylight gradually wanes towards winter, October invites visitors to enjoy the lingering warmth, making it an ideal time to explore Piraeus' rich maritime heritage against the backdrop of a beautifully sunlit horizon.
October in Piraeus, Greece, offers a moderate chance of sunshine, with about 57% likelihood of clear skies. This month marks a transition from the sizzling summer months of July and August, which boast an impressive 94% and 95% chance of sun, to the cooler days of November, dropping to 40%. Despite the decrease in sunny weather, October still enjoys pleasant mid-autumn warmth, making it an ideal time for outdoor activities before winter sets in. As the year winds down, the sun's presence remains a delightful companion, inviting both locals and travelers to relish the beauty of the Mediterranean.
As October rolls into Piraeus, Greece, the days begin to shorten, reflecting a gradual transition into the cooler months of the year. After basking in an abundance of daylight throughout the summer, where July and August boast a maximum of 14 hours, October brings the daylight down to 11 hours, a noticeable shift toward shorter days. This trend continues as the year progresses, with daylight decreasing gradually, starting from a generous 9 hours in January and reaching a peak in May. The lingering warmth of autumn can still be felt, but as the sun sets earlier each evening, there's a gentle reminder that winter is just around the corner.
As October graces Piraeus, Greece, the coastal winds dance at an average speed of 3.1 m/s (7 mph), a gentle yet invigorating breeze that is characteristic of autumn in this vibrant port city. Following a mild decline in summer winds, which reached a peak in July, October experiences a slight uptick that mirrors the winds of the prior months. This refreshing airflow is a welcome change, fostering a sense of transition from the heat of summer to the cooler embrace of fall. As the year wanes, the winds maintain a steady presence, hinting at the rotating dance of seasons that characterizes Piraeus, making October an ideal time for leisurely strolls along the waterfront, where the breeze whispers tales of the sea.
Weather in Piraeus varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Piraeus, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January exhibit contrasting weather patterns, reflecting the transition from fall to winter. In October, temperatures range from a minimum of 7°C (45°F) to a maximum of 31°C (89°F), with an average of 19°C (66°F) and relatively low precipitation of 30 mm (1.2 in) across just four rainy days, coupled with a humidity level of 72%. In contrast, January experiences colder temperatures, with a minimum of -4°C (25°F) and an average of 9°C (48°F), peaking at 22°C (72°F). The month sees higher precipitation, totaling 57 mm (2.2 in) over seven days, and slightly increased humidity at 76%. For a more detailed look at January weather, you can check Piraeus weather in January.
October and February present contrasting weather conditions. In October, temperatures range from a comfortable minimum of 7°C (45°F) to a warm maximum of 31°C (89°F), with an average temperature of 19°C (66°F). The month sees around 30 mm of precipitation over just 4 days, and humidity levels are relatively high at 72%. In stark contrast, February is cooler, with temperatures ranging from a chilly minimum of 0°C (32°F) to a moderate maximum of 20°C (68°F), averaging only 10°C (51°F). Additionally, February experiences more precipitation, totaling 48 mm over 8 days, and a slightly higher humidity level of 75%. For more detailed insights, check out Piraeus weather in February.
In October, the weather tends to be warmer with average temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (89°F), while March is notably cooler, with temperatures spanning from 0°C (32°F) to 23°C (74°F). October experiences slightly less precipitation, totaling 30 mm (1.2 in) over about 4 days, compared to March's 39 mm (1.5 in) over 5 days. Interestingly, both months have similar humidity levels, hovering around 72% in October and 74% in March, contributing to a generally pleasant atmosphere. For more detailed insights into March weather, you can check Piraeus weather in March.
When comparing October and April weather, October typically offers warmer temperatures with an average of 19°C (66°F) and a maximum of 31°C (89°F), while April averages a cooler 15°C (60°F) with a maximum of 29°C (85°F). Precipitation in October is slightly less, at 30 mm (1.2 in) over about 4 days, compared to April's 42 mm (1.6 in) over 5 days. Additionally, humidity levels are quite similar, with October at 72% and April at 75%. For more detailed information, you can check the Piraeus weather in April.
In comparing October and May weather, we see a notable difference in temperatures and humidity levels. October offers a milder temperature range, with minimums around 7°C (45°F) and maximums reaching 31°C (89°F), while May typically starts higher, with minimums around 10°C (51°F) and maximums peaking at 36°C (97°F). Precipitation is slightly higher in October at 30 mm (1.2 in), compared to May's 23 mm (0.9 in), though both months see about four days of rain. Additionally, the humidity is relatively high in both months, with October at 72% and May at 77%, contributing to a generally warm and comfortable atmosphere. For a more detailed look at May weather, you can visit Piraeus weather in May.
In comparing the weather between October and June, we see noticeable differences in temperature and precipitation patterns. October features lower temperatures with a minimum of 7°C (45°F) and an average of 19°C (66°F), peaking at 31°C (89°F). In contrast, June offers warmer conditions, with a minimum of 13°C (56°F) and an average of 25°C (77°F), reaching a maximum of 38°C (101°F). Precipitation is slightly higher in June at 33 mm (1.3 in) over 5 days, compared to October's 30 mm (1.2 in) over 4 days. Humidity levels are similar, with October at 72% and June at 71%. For more detailed information, you can check Piraeus weather in June.
When comparing the weather in October and July, notable differences emerge in temperature, precipitation, and humidity. In October, temperatures range from a minimum of 7°C (45°F) to a maximum of 31°C (89°F) with a comfortable average of 19°C (66°F). The month sees around 30 mm (1.2 in) of rainfall over approximately four days, along with a humidity level of 72%. In contrast, July presents a much warmer climate, with temperatures varying from a minimum of 19°C (67°F) to a scorching maximum of 42°C (108°F) and an average of 28°C (83°F). Rainfall is significantly lighter, totaling just 9 mm (0.4 in) across about two days, and humidity remains lower at 68%. For more detailed insights, you can check out the Piraeus weather in July.
In comparing the weather between October and August, it's evident that August tends to be significantly warmer. The average temperature in August reaches a high of 28°C (83°F), with peaks soaring up to 43°C (109°F), while October sees much cooler averages, with temperatures ranging from a minimum of 7°C (45°F) to a max of 31°C (89°F). Additionally, August is notably drier, receiving only 4 mm (0.2 in) of precipitation across zero rainy days, while October experiences more humidity at 72% and averages about 30 mm (1.2 in) of rainfall over four days. For further details on August weather, you can check out Piraeus weather in August.
In comparing the weather between September and October, October presents a noticeable drop in temperature, with a minimum of 7°C (45°F) and an average of 19°C (66°F), compared to September's warmer minimum of 13°C (55°F) and average of 24°C (76°F). Additionally, October experiences a wider temperature range, peaking at 31°C (89°F), while September can soar to a maximum of 37°C (98°F). Precipitation increases slightly in October to 30 mm (1.2 in) over 4 days, compared to September's 17 mm (0.7 in) over just 2 days, and the humidity also rises to 72% in October from 65% in September. To explore the weather conditions in more detail, you can check out Piraeus weather in September.
October generally offers warmer temperatures compared to November, with average highs reaching 31°C (89°F) and lows around 7°C (45°F). In contrast, November sees a drop in temperature, with averages ranging from a high of 25°C (78°F) to a low of 4°C (39°F). While October experiences less precipitation at 30 mm (1.2 in) over just 4 days, November brings more rain, totaling 48 mm (1.9 in) over 7 days. Additionally, humidity levels are slightly higher in November at 75%, compared to October’s 72%. For a closer look at weather specifics during this month, check out Piraeus weather in November.
October and December present notably different weather patterns. In October, temperatures range from a comfortable minimum of 7°C (45°F) to a warm maximum of 31°C (89°F), with an average of 19°C (66°F). The month experiences relatively low precipitation, totaling around 30 mm (1.2 in) over about 4 days, alongside a humidity level of 72%. In contrast, December’s temperatures dip significantly, with a minimum of just 1°C (34°F) and an average of 11°C (53°F), reaching a maximum of 21°C (70°F). This month sees increased rainfall, with approximately 66 mm (2.6 in) over 9 days and a slightly higher humidity of 76%. For more details on December's climate, you can check Piraeus weather in December.
As October unfolds in Piraeus, the weather transitions into a more temperate phase, distinguishing it from the warmer summer months. With average temperatures hovering around a comfortable 19°C (66°F), outdoor activities become particularly enjoyable as the harsh summer heat recedes. While occasional rain showers may occur, with about 30 mm of precipitation spread over just four days, the overall humidity remains at a manageable 72%, making the air feel fresher. Whether you're exploring the bustling waterfront or enjoying a leisurely stroll through the historic sites, October in Piraeus offers a delightful balance of warmth and mildness, inviting visitors to experience the city in a new light. For a comprehensive overview of the seasonal patterns, check out Piraeus Climate.