Climate and monthly weather forecast
Athens, Greece

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The ancient city of Athens in Greece with a view of the Parthenon Temple
The ancient city of Athens in Greece with a view of the Parthenon Temple

The climate of Athens

Athens is tucked away in the eastern corner of Central Greece. It experiences a Mediterranean climate, with significantly wide variations throughout the year. These fluctuations extend from the peak of summer heat in July, with temperatures lifting to 30.9°C (87.6°F), to the cool tug of winter in January, as temperatures drop to an average of 7.3°C (45.1°F).

Month on month, the city undergoes notable changes in humidity levels and precipitation. The dry winds of summer see the relative humidity drop to a dry 50% in August, while a refreshing, damp spell is observed in December with 72% humidity. The ample sunshine nurtures Athens almost all year-round, peaking in summertime, particularly in July and August. Rain is a relatively infrequent visitor, with minimal downpours seen from July to August. However, the wet spell in December gives the city an average of 53mm (2.09") precipitation.

Winds in Athens are moderate, with maximum gusts ramping up to 22.9km/h (14.2mph) in August. The sea temperature, caters to delightful swimming conditions, especially from June to September when the temperature ranges from 22.6°C (72.7°F) to the peak of 26.3°C (79.3°F) in August.

The best time to visit Athens

A visit to Athens is best planned for the months of May and June. During these months, daily temperatures sway pleasantly from 19.2°C (66.6°F) to 28.1°C (82.6°F), coupled with delightful sea temperatures of 18.5°C (65.3°F) to 22.6°C (72.7°F). A relative humidity of around 58% to 54% provides a comfortable atmosphere, while average rainfall is relatively low, extending to 20mm (0.79") and 17mm (0.67") respectively. In addition, visitors can indulge in the city's sunshine for 14.2 to 14.8 hours a day, leaving plenty of time to explore its multitude of historic landmarks and rich culture.

The worst time to visit Athens

Although Athens can be enjoyed year-round, the month of January seems less inviting. During this time, temperatures can dwindish to 7.3°C (45.1°F). The discomfort in briskness is elevated with precipitation of 47mm (1.85") which is quite highest for the year, and a relative humidity reading of 74%. The Greek capital also experiences lesser sunshine and daylight, averaging at 5.6 hours and 9.9 hours respectively, which can limit outdoor explorations.

Spring weather in Athens

Spring, from March to May, brings the allure of mild and pleasant weather to Athens. Temperatures begin to gradually ascend from an average of 9.8°C (49.6°F) to 16.4°C (61.5°F). The period witnesses a subtle transition from the slightly rainy conditions in March, with a rainfall of 34mm (1.34") to relatively drier consequences in May, with 20mm (0.79") rainfall. The hours of sunshine also start to stretch out, from 8 hours in March to 11.3 hours in May.

Summer weather in Athens

Summer begins in June and ends in August. This period promises high temperatures that may soar to 30.9°C (87.6°F). The warming escalation is accompanied by the city basking in the most hours of sunshine - up to 11.8 hours daily in June and July. Rainfall hits its low point, ranging from 5mm (0.2") in July to 4mm (0.16") in August. Visitors can also look forward to lower humidity, down to 50% in August.

Autumn weather in Athens

The Athens autumn season descends in September, introducing a slight dip in heat, dropping to an average low of 16.7°C (62.1°F) by November. The city pulls out its rainy cloak once again, with showers increasing from 19mm (0.75") in September to 40mm (1.57") in November. While daylight hours shrink, autumn still boasts ample sunshine ranging from 9.9 hours to 6.4 hours.

Winter weather in Athens

Winter in Athens, spreading over December and February, witnesses temperatures oscillating from 7.3°C (45.1°F) to 8.3°C (46.9°F). An increase in rainfall paints the city wet, especially during December with 53mm (2.09") precipitation. Yet, the Greek charm remains unscathed as the winter sun illuminates Athens for 5.8 to 6.8 hours a day. The sea temperature drops but remains relatively comfortable, hovering between 15.4°C (59.7°F) and 16.6°C (61.9°F).

Weather in January

Clear skies are a signature characteristic of Athens, Greece in January. Enjoy long walks by the sea at a cool 15.4°C (59.7°F). This is the month when Athens records its highest snowfall at 9mm (0.35"). Winter clothing is a must due to the cold nights. Weather in January »

Weather in February

Chilly days and colder nights define February in Athens. Daylight increases to 10.8 hours per day. The amount of snowfall decreases this month to a nearly negligible level of 2mm (0.08"), signaling the end of the snowy period. Sporting events and outdoor festivals in the city remain unhampered by weather conditions. Weather in February »

Weather in March

March still sees a mixture of cool and warm days in Athens. The amount of sunshine greatly increases, indicating the approach of spring. With varying temperatures playing between 9.8°C (49.6°F) to 16°C (60.8°F), the fluctuating weather keeps residents and tourists on their toes. Weather in March »

Weather in April

April symbolizes a remarkable shift in Athens's weather. The temperature increases remarkably with no recorded snowfall. From 12.1°C (53.8°F) to 19.2°C (66.6°F), the increased warmth marks the end of chilly days. Spring is in full swing, with flowers blooming all over the city. Weather in April »

Weather in May

May in Athens is the prelude to a hot summer. Daylight extends to 14.2 hours per day, adding cheer to the atmosphere. A stark decrease in rainfall to 20mm (0.79") truly marks the start of the dry season. It is a suitable time to indulge in outdoor activities. Weather in May »

Weather in June

June is when summer officially starts in Athens. With temperatures reaching a scorching 28.1°C (82.6°F), it becomes mandatory to wear sunscreen. This month also experiences the lowest rainfall of the year, a meager 17mm (0.67"). Outdoor activities flourish under the lush blue skies. Weather in June »

Weather in July

Juxtaposed against its January cold, Athens is sun-blitzed in July. Reaching highs of a sweltering 30.9°C (87.6°F), the city thrums under the summer sun. This is the period when most residents take their vacations. Cafes are brimming with energy. Weather in July »

Weather in August

August continues the trend set by July in Athens. Temperatures soar, sometimes reaching their yearly peak. Despite this, tourists flock to the city, lured by the alluring Mediterranean climate. Sea temperatures reach their maximum, ideal for beach activities. Weather in August »

Weather in September

September ushers in a subtle change to the Athens weather. Humidity begins to rise with September averaging 58%. It is a transition month from the summer heat to the mild, pleasant autumn. The heat gradually tapers down, making sightseeing more comfortable. Weather in September »

Weather in October

October in Athens is the epitome of a Mediterranean autumn. Though showers start to increase, they don’t detract from the overall pleasant climate. The temperatures continue their descent towards milder figures. The city basks in the spirit of the Athens Authentic Marathon, soaking up the gentle autumn sunshine. Weather in October »

Weather in November

November signals the onset of winter with temperatures dropping between 13.5°C (56.3°F) and 18.1°C (64.6°F). Rainfall increases, welcoming the wet season in Athens. The city starts preparing for the winter festivities ahead. Weather in November »

Weather in December

December marks the year-end with increasing humidity levels and temperature lows of around 9.3°C (48.7°F). Christmas festivities enliven the atmosphere. With rain peaking at 53mm (2.09"), the city experiences its wettest month. Weather in December »
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Frequently asked questions

What are the coldest months in Athens?

January, with average temperatures reaching a high of 12.1°C (53.8°F) and a low of 7.3°C (45.1°F), is the coldest month in Athens, Greece.

What is the most humid month in Athens?

January is the most humid month in Athens, Greece, with an average relative humidity of 74%.

How many days does it rain in Athens?

Throughout the year, there are 98.9 rainfall days, and 348mm (13.7") of precipitation is accumulated.

When does it snow in Athens?

Months with snowfall in Athens are January through March.

When does it snow the most in Athens?

The month with the most snowfall in Athens is January, when snow falls for 0.9 days and typically aggregates up to 9mm (0.35") of snow.

How many days does it snow in Athens?

In Athens, during the entire year, snow falls for 1.7 days and aggregates up to 12mm (0.47") of snow.

What is the month with the least sunshine in Athens?

With an average of 5.6h of sunshine, January has the least sunshine of the year in Athens.

What month is the sea coldest in Athens?

The month with the coldest seawater is February, with an average sea temperature of 15°C (59°F).

When it does not snow in Athens?

April through December are months without snowfall.

When are the longest days in Athens?

With an average of 14h and 48min of daylight, June has the longest days of the year in Athens, Greece.

What are the months with the highest UV index in Athens?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What are the months with the most sunshine in Athens?

July and August, with an average of 12h of sunshine, are months with the most sunshine in Athens.

What time of the year is the hottest in Athens?

August is the month when Athens, Greece, sees the average highest temperatures, with a high of 31°C (87.8°F) and a low of 23.8°C (74.8°F).

What is the least humid month in Athens?

August is the least humid month in Athens, Greece, with an average relative humidity of 50%.

What is the driest month in Athens?

The month with the least rainfall in Athens, Greece, is August, when the rain falls for 1.8 days and typically collects 4mm (0.16") of precipitation.

What month is the sea warmest in Athens?

The month with the warmest seawater in Athens, Greece, is August, with an average sea temperature of 26.3°C (79.3°F).

When is Daylight Saving Time (DST) in Athens?

On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.

What is the rainiest month in Athens?

The month with the most rainfall in Athens is December, when the rain falls for 11 days and typically aggregates up to 53mm (2.09") of precipitation.

What is the month with the shortest days in Athens?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

When is the lowest UV index in Athens?

December is the month with the lowest UV index in Athens, with an average maximum UV index of 2.

Average temperature
Athens, Greece

Average temperature - Athens, Greece

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (12.1°C).

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (7.3°C).

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Average pressure
Athens, Greece

Average pressure - Athens, Greece

The month with the highest atmospheric pressure is December (1018.2mbar).
The month with the lowest atmospheric pressure is July (1011.1mbar).

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Average wind speed
Athens, Greece

Average wind speed - Athens, Greece

The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is May (11.6km/h).

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Average rainfall
Athens, Greece

Average rainfall - Athens, Greece

The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is August (4mm).

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Average rainfall days
Athens, Greece

Average rainfall days - Athens, Greece

The month with the highest number of rainy days is January (11.3 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall
Athens, Greece

Average snowfall - Athens, Greece

The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days
Athens, Greece

Average snowfall days - Athens, Greece

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature
Athens, Greece

Average sea temperature - Athens, Greece

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15°C).

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Average daylight / Average sunshine
Athens, Greece

Average daylight / Average sunshine - Athens, Greece

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days
Athens, Greece

Average sunshine days - Athens, Greece

The month with the most sunshine days is August (28.5 days).
The month with the least sunshine days is February (14.1 days).

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Average visibility
Athens, Greece

Average visibility - Athens, Greece

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Athens, Greece

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