Piraeus weather and climate in 2025
Day
24 °C
Night
15 °C
Sea
22 °C
Precipitation
39 mm
in month
Rainy days
4 days
in month
Daylight
11 hours
average
Sunshine
7 hours
average
Humidity
66 %
Day
24 °C
Night
15 °C
Sea
22 °C
Precipitation
39 mm
in month
Rainy days
4 days
in month
Daylight
11 hours
average
Sunshine
7 hours
average
Humidity
66 %
Overview: Piraeus
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Weather overview for Piraeus
Weather overview
Piraeus, with its Mediterranean climate, experiences mild, wet winters and hot, dry summers. Day temperatures peak in July, reaching approx. 33.8°C, whereas January is the coldest month with daytime averages around 13.3°C. Rainfall is prominent during winter months, with December seeing around 67 mm of precipitation. Summers are arid, often dropping below 10 mm of rain in August. Weather transitions between seasons are gentle, easing visitors into the changing climes. Regardless of the month, it's always a good idea to pack layers due to variabilities in temperature, particularly during seasonal shifts.
January weather
January in Piraeus greets you with a cool and fresh start to the year. The daytime temperature hovers around 13.3°C - a gentle reminder of the Mediterranean winter. Expect to encounter an average of 8 rainy days through the month, layer up and ensure you have adequate protection from the rain.
February weather
February in Piraeus remains cool with an average high of 13.9°C. The sea is still brisk, at around 14.2°C, which may deter some from swimming. Precipitation begins to decline, though you might still see around 7 rainy days.
March weather
March in Piraeus veers towards a more pleasant climate, with daytime temperatures climbing to 16°C. Rain lightens even further, and with the sea temperature gradually inching up, there's a hint of the warm spring to come.
April weather
April in Piraeus marks a clear transition to spring, with the average max temperature reaching a delightful 20.4°C and precipitation receding further to just under 31 mm throughout the month.
May weather
As Piraeus heads into May, summer beckons with longer, sun-filled days. Day temperatures soar to a warm 25.4°C, signaling the end of the sweater weather. With only about 3 rain days in the month, the city begins to dry.
June weather
June in Piraeus is a prelude to the peak of summer, with temperatures averaging a hot 30.8°C. You can luxuriate in about 11.3 sun hours each day, and the sea warms up to a refreshing 22.1°C.
July weather
With the apex of summer upon us in July, Piraeus basks in the glory of high temperatures averaging 33.8°C during the day. All but a single day's worth of rain is expected, affirming the seasonal dry spell.
August weather
August in Piraeus remains consistently torrid, mirroring July's peak temperatures. The sea becomes even warmer, tempting you to linger and relax in its waters, while only about 1.2 rainy days are expected throughout the month.
September weather
September sees the beginning of a gentle cooldown in Piraeus, with the daytime temperature averaging a more moderate 29.2°C. Although still mostly dry, the return of rain is hinted with about 2.3 rainy days.
October weather
October's arrival in Piraeus brings an autumn chill, with temperatures steadily descending to a cooler 23.6°C. Rainfall begins to pick up, with approximately 4 rainy days contributing to the 39 mm of precipitation for the month.
November weather
November in Piraeus ushers in cooler days with average temperatures falling to 18°C. The approach of winter is felt with increased rainfall across about 6.8 rainy days, and night temperatures beginning to drop.
December weather
As December arrives in Piraeus, winter begins to take hold. The temperatures average a daytime high of 14.5°C, while nights can be quite nippy. Expect the most rainfall for the year, with close to 67 mm.
FAQs
What should I wear during my visit to Piraeus in January?
You should consider dressing in layers as January in Piraeus can be quite chilly, especially at night when temperatures drop to around 6.8°C. Make sure to bring a sturdy umbrella or a waterproof coat to deal with the rainy days.
Is it warmer in Piraeus in February compared to January?
February is marginally warmer than January in Piraeus with temperatures slightly increasing, promising the coming of spring just around the corner.
How does the weather begin to change in Piraeus in March?
March witnesses a noticeable change in weather, showcasing an increase in temperature to a comfortable 16°C during the day. Rain continues to diminish, as does relative humidity, which drops to 68.8%.
Will I need a jacket in Piraeus during the day in April?
A light jacket might be useful for the evenings in April as it can still get a bit nippy when temperatures drop to an average low of 11.4°C. However, you'll be comfortable during the day with pleasant temperatures averaging 20.4°C.
Is May considered warm in Piraeus?
May is indeed considered warm in Piraeus with temperatures reaching an inviting 25.4°C during the daytime, perfect for outdoor activities and embracing the Mediterranean sun.
Can you describe the typical weather in Piraeus during June?
June offers idyllic summer weather in Piraeus with long sunny days, minimal rainfall, and an average daytime high of a toasty 30.8°C that invites you to the beach or a pleasant stroll along the harbor.
Is Piraeus very hot in July?
Indeed, July has Piraeus experiencing its hottest days, with daytime temperatures soaring to an average of 33.8°C, making it the perfect time to take advantage of the beaches and the cooling sea at 24.8°C.
How warm is the sea near Piraeus in August?
The sea near Piraeus is invitingly warm in August, averaging 25.7°C, which is possibly the warmest sea temperature you'll enjoy throughout the year, perfect for swimming and watersports.
Does September in Piraeus feel like summer?
September in Piraeus retains much of the summer's warmth with an agreeable average of 29.2°C, offering a beautiful extension of summery weather before the autumnal dip.
What are the typical temperatures during the day in Piraeus in October?
October days in Piraeus are refreshingly cool compared to the summer, with average highs settling at around 23.6°C, which is ideal for exploring the city without the sweltering heat.
How much does the temperature change from October to November in Piraeus?
The transition from October to November in Piraeus is marked by a noticeable dip in temperature, as the daytime highs decrease by around 5.6°C, reflecting the onset of the cooler season.
Can you describe the winter weather pattern for Piraeus in December?
December's weather in Piraeus is characterized by the coldest and wettest conditions of the year with frequent rainfall imminent and a mean daytime temperature that's brisk, signaling the depth of winter.
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