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Climate in Athens (Greece)


Average weather, temperature, rainfall, sunshine hours

Flag - Greece

Position of Athens


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Climate chart - Athens
In Athens, the capital of Greece, the climate is Mediterranean, with mild, moderately rainy winters and hot, sunny summers.
The city is located near the 38th parallel. It covers a wide area in the plain of Attica, which is surrounded by mountains on three sides, and overlooks the sea to the south.

Even though the winter is mild, from December to mid-March, sometimes there can be outbreaks of cold air from the Balkan Peninsula, which can bring cold and rain for some days, and sometimes even snow. Snowfalls occur more easily in the northern part of the city; at the city center, the Acropolis is whitened with snow more easily than the lower surrounding areas. A particularly abundant snowfall, which also affected the southern and coastal areas, occurred in February 2008. In that case, the temperature dropped to -4 °C (25 °F).

Summer is hot and sunny; in fact, Athens in summer is the hottest capital of Europe. In July and August, the temperature quite easily reaches 35/36 °C (95/97 °F), but during heatwaves, it can reach as high as 40 °C (104 °F). The highest record is 43 °C (109.5 °F) and was set in August 2021.

Athens

Precipitation is not abundant, since it amounts to 365 millimeters (14.3 inches) per year, and follows the Mediterranean pattern, with a maximum from November to February and a minimum in summer, when clear skies prevail and there are only occasional thunderstorms.

The amount of sunshine in Athens is great in summer, when clear skies are normal, while in winter, there can be sunny days but also periods of a few days when the sky is cloudy. On average, there are almost 2,800 hours of sunshine per year, so Athens is one of the sunniest cities in Europe.

The sea in Athens is warm enough for swimming from July to September, when the water temperature is 24/25 °C (75/77 °F); in June, it's still a bit cool, about 22 °C (72 °F).

Best Time


The best times to visit Athens are spring and autumn, especially from mid-April to late May and from mid-September to early October. By mid-October, the likelihood of rainfall increases, and sometimes it can be violent and concentrated in time. Those who can stand the heat can also choose the summer.

The following weather data was recorded at Ellinikon Airport.

Athens - Climate data


In Athens, the average temperature of the coldest month (January) is of 9,9 °C, that of the warmest month (August) is of 28,5 °C. Here are the average temperatures.
Athens - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January6,613,39,9
February6,814,110,4
March8,616,512,6
April11,520,215,9
May15,925,220,5
June20,530,325,4
July23,433,228,3
August23,633,428,5
September2028,924,4
October15,923,819,9
November11,918,815,3
December8,514,711,6
Year14,522,718,55

Precipitation amounts to 365 millimeters per year: it is therefore quite scarce. It ranges from 5,4 millimeters in the driest month (June) to 60 millimeters in the wettest ones (November, December) Here is the average precipitation.
Athens - Average precipitation
MonthRain (mm)Days
January509
February407
March408
April256
May144
June51
July61
August61
September123
October455
November608
December6011
Year36564

The sea temperature ranges from 15 °C in February, March to 25 °C in August. Here are the average sea temperatures.
Athens - Sea temperature
MonthTemperatures (°C)
January16
February15
March15
April16
May18,5
June22
July24
August25
September24
October22
November19,5">
December17
Year19,5

There are on average around 2775 sunshine hours per year. Here are the average hours of sunshine per day.
Athens - Sunshine hours
MonthAverageTotal
January4130
February5135
March6185
April7,5230
May9,5290
June11335
July11,5365
August11340
September9275
October6,5210
November5155
December4125
Year7,62775

Athens - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)


January, the coldest month of the year, is generally a mild month. The average temperature is of 9,9 °C, with a minimum of 6,6 °C and a maximum of 13,3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 0,5 °C. However, it dropped to -2,8 °C in January 2006.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 18 °C. However, it reached 21,9 °C in January 2016.
Rain iconPrecipitation amounts to 50 mm, distributed over 9 days.
The day lasts on average 9 hours and 55 minutes.
Sun iconThere are on average 4 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 69%.
The average wind speed is of 9,4 kph.
Sea iconThe average sea temperature is of 15,8 °C. Therefore, the sea is cold for swimming.


February is generally a mild month. The average temperature is of 10,4 °C, with a minimum of 6,8 °C and a maximum of 14,1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 0,5 °C. However, it dropped to -4,2 °C in February 2008.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 19 °C. However, it reached 24,2 °C in February 2016.
Rain iconPrecipitation amounts to 40 mm, distributed over 7 days.
The day lasts on average 10 hours and 50 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 67%.
The average wind speed is of 9,9 kph.
Sea iconThe average sea temperature is of 15,1 °C. Therefore, the sea is cold for swimming.


March is generally a mild month. The average temperature is of 12,6 °C, with a minimum of 8,6 °C and a maximum of 16,5 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 3,5 °C. However, it dropped to -1,8 °C in March 2011.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 21,5 °C. However, it reached 27 °C in March 2001.
Rain iconPrecipitation amounts to 40 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 65%.
The average wind speed is of 9,6 kph.
Sea iconThe average sea temperature is of 15 °C. Therefore, the sea is cold for swimming.


April is generally a very mild month. The average temperature is of 15,9 °C, with a minimum of 11,5 °C and a maximum of 20,2 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 6,5 °C. However, it dropped to 1 °C in April 2003.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 25,5 °C. However, it reached 30,9 °C in April 2018.
Rain iconPrecipitation amounts to 25 mm, distributed over 6 days.
The day lasts on average 13 hours and 10 minutes.
Sun iconThere are on average 7,5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 60%.
The average wind speed is of 8,8 kph.
Sea iconThe average sea temperature is of 15,9 °C. Therefore, the sea is cold for swimming.


May is generally a warm month. The average temperature is of 20,5 °C, with a minimum of 15,9 °C and a maximum of 25,2 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 11,5 °C. However, it dropped to 8 °C in May 2006.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 31 °C. However, it reached 35,6 °C in May 2008.
Rain iconPrecipitation amounts to 14,3 mm, distributed over 4 days.
The day lasts on average 14 hours and 20 minutes.
Sun iconThere are on average 9,5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 58%.
The average wind speed is of 8,5 kph.
Sea iconThe average sea temperature is of 18,4 °C. Therefore, the sea is very cool for swimming.


June is generally a warm to hot month. The average temperature is of 25,4 °C, with a minimum of 20,5 °C and a maximum of 30,3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 16 °C. However, it dropped to 12,8 °C in June 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 36,5 °C. However, it reached 41,1 °C in June 2017.
Rain iconPrecipitation amounts to only 5,4 mm, and all occurs in one day.
The day lasts on average 14 hours and 50 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
Sun iconThere are on average 11 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 52%.
The average wind speed is of 9,4 kph.
Sea iconThe average sea temperature is of 21,8 °C. Therefore, the sea is cool for swimming.


July is generally a very hot month. The average temperature is of 28,3 °C, with a minimum of 23,4 °C and a maximum of 33,2 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 19,5 °C. However, it dropped to 16,8 °C in July 1993.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 37,5 °C. However, it reached 41,2 °C in July 2007.
Rain iconPrecipitation amounts to only 6,3 mm, and all occurs in one day.
The day lasts on average 14 hours and 30 minutes.
Sun iconThere are on average 11,5 hours of sunshine per day. So, the sun shines 81% of the time.
The average humidity is 46%.
The average wind speed is of 11,1 kph.
Sea iconThe average sea temperature is of 24,1 °C. Therefore, the sea is warm enough for swimming.


August, the hottest month of the year, is generally a very hot month. The average temperature is of 28,5 °C, with a minimum of 23,6 °C and a maximum of 33,4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 19,5 °C. However, it dropped to 17,2 °C in August 2009.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 38 °C. However, it reached 40,2 °C in August 1999.
Rain iconPrecipitation amounts to only 6,2 mm, and all occurs in one day.
The day lasts on average 13 hours and 35 minutes.
Sun iconThere are on average 11 hours of sunshine per day. So, the sun shines 81% of the time.
The average humidity is 46%.
The average wind speed is of 11,4 kph.
Sea iconThe average sea temperature is of 25 °C. Therefore, the sea is warm enough for swimming.


September is generally a warm to hot month. The average temperature is of 24,4 °C, with a minimum of 20 °C and a maximum of 28,9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 15,5 °C. However, it dropped to 11,8 °C in September 2009.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 33,5 °C. However, it reached 37 °C in September 1994.
Rain iconPrecipitation amounts to 12,3 mm, distributed over 3 days.
The day lasts on average 12 hours and 25 minutes.
Sun iconThere are on average 9 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 54%.
The average wind speed is of 9,7 kph.
Sea iconThe average sea temperature is of 24,1 °C. Therefore, the sea is warm enough for swimming.


October is generally a warm month. The average temperature is of 19,9 °C, with a minimum of 15,9 °C and a maximum of 23,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 10,5 °C. However, it dropped to 5,4 °C in October 2011.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 29 °C. However, it reached 33,8 °C in October 1991.
Rain iconPrecipitation amounts to 45 mm, distributed over 5 days.
The day lasts on average 11 hours and 10 minutes.
Sun iconThere are on average 6,5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 63%.
The average wind speed is of 8,6 kph.
Sea iconThe average sea temperature is of 22 °C. Therefore, the sea is cool for swimming.


November is generally a very mild month. The average temperature is of 15,3 °C, with a minimum of 11,9 °C and a maximum of 18,8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 6,5 °C. However, it dropped to 2 °C in November 2004.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 24 °C. However, it reached 26 °C in November 2018.
Rain iconPrecipitation amounts to 60 mm, distributed over 8 days.
The day lasts on average 10 hours and 5 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 69%.
The average wind speed is of 8,8 kph.
Sea iconThe average sea temperature is of 19,3 °C. Therefore, the sea is very cool for swimming.


December is generally a mild month. The average temperature is of 11,6 °C, with a minimum of 8,5 °C and a maximum of 14,7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 2,5 °C. However, it dropped to -2 °C in December 2001.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 19,5 °C. However, it reached 22,4 °C in December 2010.
Rain iconPrecipitation amounts to 60 mm, distributed over 11 days.
The day lasts on average 9 hours and 35 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
Sun iconThere are on average 4 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of 9,4 kph.
Sea iconThe average sea temperature is of 17,1 °C. Therefore, the sea is cold for swimming.

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