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Climate in Mykonos (Greece)


Average weather, temperature, rainfall, sunshine hours

Flag - Greece

Position of Mykonos


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Climate chart - Mykonos
In Mykonos, a small Greek island in the group of the Cyclades, the climate is Mediterranean, with mild, rainy winters and warm, sunny summers.
The island is windy, and it's cooler in summer than other islands of Greece. The wind has been exploited for centuries by windmills, which are found all over the island.

Rainfall follows the Mediterranean pattern, in fact, it is concentrated from October to March and is not abundant, since it amounts to about 500 millimeters (20 inches) per year, and this is confirmed by the landscape, which is arid.

Winter, from December to mid-March, is mild, quite rainy and windy. The wind, frequent and sometimes violent, makes the air feel colder than it actually is.
The island is located north enough and close enough to the mainland to receive cold air with some frequency, to the point that there can be cold days, with highs below 10 °C (50 °F), and sometimes even snow can fall. For example, it snowed in February 2004, February 2008, March 2011, January 2017 and January 2022.

Snow in Mykonos

Spring, from mid-March to May, is mild and quite sunny, but it's also windy. There are some periods of bad weather which gradually become more rare. By mid-May, the Meltemi begins to blow. It is a persistent wind, cool and dry, which blows from the north for a few days in a row, especially in the daytime, but sometimes even at night.

Summer, from June to mid-September, is warm and sunny, but also windy. The Meltemi blows for long periods, especially in July and August, and it's stronger in the afternoon, but can insist also in the evening. In some cases, wind gusts may exceed 70 kph (45 mph). Thanks to this wind, the maximum temperature is usually below 30 °C (86 °F), and heat waves are generally less intense than in other parts of Greece.
However, the temperature can reach 38/40 °C (100/104 °F), although very rarely.

Autumn, from mid-September to November, is initially warm and sunny, but it gradually becomes cooler and rainier. Autumn too is windy: as long as the weather is nice, the Meltemi still blows, while later, the wind blows along with autumnal depressions.

Mykonos

The amount of sunshine in Mykonos is great in the summer, when clear skies prevail, while in winter, sunny periods alternate with others characterized by clouds and rain.

The temperature of the sea is never very high, since the wind blowing in summer keeps it a bit low, however, it reaches 23/24 °C (73/75 °F) from July to September; in June, it's still a bit cool.

Best Time


The best time to go to Mykonos for a beach holiday is the summer, between June and mid-September.
It's advisable to bring a sweatshirt for cool evenings, which occur mainly in June, but given the intensity of the wind, those who are sensitive to cold may feel a little cool even in July and August.
If you want to visit cities or to go hiking and walking, the spring is also good, in April and May, but since it almost never gets hot, usually you can stroll around the island even in summer, which normally we do not recommend in Mediterranean climates, and generally, in places where it can get hot in summer.

Back to the Cyclades Islands.

Mykonos - Climate data


In Mykonos, the average temperature of the coldest month (January) is of 10.9 °C, that of the warmest month (August) is of 25.8 °C. Here are the average temperatures.
Mykonos - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January9.212.610.9
February9.51311.3
March11.11513
April13.21815.6
May16.722.319.5
June20.826.723.7
July22.928.525.7
August23.228.425.8
September20.725.723.2
October17.621.919.8
November14.217.816
December10.71412.4
Year15.920.418.1

Precipitation amounts to 500 millimeters per year: it is therefore quite scarce. It ranges from 2 millimeters in the driest months (July, August) to 100 millimeters in the wettest ones (January, December) Here is the average precipitation.
Mykonos - Average precipitation
MonthRain (mm)Days
January10010
February708
March607
April255
May153
June41
July20
August20
September102
October455
November656
December10010
Year50057

The sea temperature ranges from 15.5 °C in February, March to 24 °C in August. Here are the average sea temperatures.
Mykonos - Sea temperature
MonthTemperatures (°C)
January16
February15.5
March15.5
April16
May18.5
June21.5
July23.5
August24
September23.5
October21.5
November19">
December17
Year19.3

There are on average around 2900 sunshine hours per year. Here are the average hours of sunshine per day.
Mykonos - Sunshine hours
MonthAverageTotal
January3.5115
February5150
March6.5200
April8.5260
May9.5300
June11335
July12375
August11.5355
September9.5290
October7.5235
November5.5170
December3.5115
Year7.92900

Mykonos - 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 10.9 °C, with a minimum of 9.2 °C and a maximum of 12.6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 4 °C. However, it dropped to 0 °C in January 2004.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 17 °C. However, it reached 21 °C in January 2010.
Rain iconPrecipitation amounts to 100 mm, distributed over 10 days.
The day lasts on average 9 hours and 55 minutes.
Sun iconThere are on average 3.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of 22.1 kph.
Sea iconThe average sea temperature is of 16 °C. Therefore, the sea is cold for swimming.


February is generally a mild month. The average temperature is of 11.3 °C, with a minimum of 9.5 °C and a maximum of 13 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 4 °C. However, it dropped to -2 °C in February 2004.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 17.5 °C. However, it reached 22 °C in February 2010.
Rain iconPrecipitation amounts to 70 mm, distributed over 8 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 48% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of 23.6 kph.
Sea iconThe average sea temperature is of 15.5 °C. Therefore, the sea is cold for swimming.


March is generally a mild month. The average temperature is of 13 °C, with a minimum of 11.1 °C and a maximum of 15 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 6 °C. However, it dropped to 0 °C in March 2011.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 19.5 °C. However, it reached 25 °C in March 2001.
Rain iconPrecipitation amounts to 60 mm, distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
Sun iconThere are on average 6.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 69%.
The average wind speed is of 22.3 kph.
Sea iconThe average sea temperature is of 15.4 °C. Therefore, the sea is cold for swimming.


April is generally a very mild month. The average temperature is of 15.6 °C, with a minimum of 13.2 °C and a maximum of 18 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 9.5 °C. However, it dropped to 6 °C in April 2003.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 23 °C. However, it reached 27 °C in April 2018.
Rain iconPrecipitation amounts to 25 mm, distributed over 5 days.
The day lasts on average 13 hours and 10 minutes.
Sun iconThere are on average 8.5 hours of sunshine per day. So, the sun shines 66% of the time.
The average humidity is 68%.
The average wind speed is of 21.6 kph.
Sea iconThe average sea temperature is of 16.2 °C. Therefore, the sea is cold for swimming.


May is generally a warm month. The average temperature is of 19.5 °C, with a minimum of 16.7 °C and a maximum of 22.3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 13 °C. However, it dropped to 11 °C in May 1999.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 28.5 °C. However, it reached 34 °C in May 2010.
Rain iconPrecipitation amounts to 15 mm, distributed over 3 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
Sun iconThere are on average 9.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 64%.
The average wind speed is of 20.7 kph.
Sea iconThe average sea temperature is of 18.5 °C. Therefore, the sea is very cool for swimming.


June is generally a warm to hot month. The average temperature is of 23.7 °C, with a minimum of 20.8 °C and a maximum of 26.7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 17.5 °C. However, it dropped to 16 °C in June 1994.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 32.5 °C. However, it reached 39 °C in June 2007.
Rain iconPrecipitation amounts to only 4 mm, and all occurs in one day.
The day lasts on average 14 hours and 40 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
Sun iconThere are on average 11 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 59%.
The average wind speed is of 22.9 kph.
Sea iconThe average sea temperature is of 21.7 °C. Therefore, the sea is cool for swimming.


July is generally a warm to hot month. The average temperature is of 25.7 °C, with a minimum of 22.9 °C and a maximum of 28.5 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 20.5 °C. However, it dropped to 19 °C in July 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 34 °C. However, it reached 40 °C in July 2017.
Rain iconPrecipitation amounts to only 2 mm, distributed over 0 days.
The day lasts on average 14 hours and 25 minutes. So the days are long.
Sun iconThere are on average 12 hours of sunshine per day. So, the sun shines 84% of the time.
The average humidity is 58%.
The average wind speed is of 28.2 kph.
Sea iconThe average sea temperature is of 23.5 °C. Therefore, the sea can be considered barely acceptable for swimming.


August, the hottest month of the year, is generally a warm to hot month. The average temperature is of 25.8 °C, with a minimum of 23.2 °C and a maximum of 28.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 21 °C. However, it dropped to 20 °C in August 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 33 °C. However, it reached 35 °C in August 1994.
Rain iconPrecipitation amounts to only 2 mm, distributed over 0 days.
The day lasts on average 13 hours and 30 minutes.
Sun iconThere are on average 11.5 hours of sunshine per day. So, the sun shines 85% of the time.
The average humidity is 62%.
The average wind speed is of 29 kph.
Sea iconThe average sea temperature is of 24.2 °C. Therefore, the sea is warm enough for swimming.


September is generally a warm to hot month. The average temperature is of 23.2 °C, with a minimum of 20.7 °C and a maximum of 25.7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 17.5 °C. However, it dropped to 14 °C in September 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 30.5 °C. However, it reached 35 °C in September 2015.
Rain iconPrecipitation amounts to 10 mm, distributed over 2 days.
The day lasts on average 12 hours and 25 minutes.
Sun iconThere are on average 9.5 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 65%.
The average wind speed is of 23.5 kph.
Sea iconThe average sea temperature is of 23.3 °C. Therefore, the sea can be considered barely acceptable for swimming.


October is generally a warm month. The average temperature is of 19.8 °C, with a minimum of 17.6 °C and a maximum of 21.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 13.5 °C. However, it dropped to 10 °C in October 2003.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 26.5 °C. However, it reached 32 °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 7.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 22.6 kph.
Sea iconThe average sea temperature is of 21.4 °C. Therefore, the sea is cool for swimming.


November is generally a very mild month. The average temperature is of 16 °C, with a minimum of 14.2 °C and a maximum of 17.8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 9.5 °C. However, it dropped to 4 °C in November 2004.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 22.5 °C. However, it reached 26 °C in November 1992.
Rain iconPrecipitation amounts to 65 mm, distributed over 6 days.
The day lasts on average 10 hours and 5 minutes.
Sun iconThere are on average 5.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 21.6 kph.
Sea iconThe average sea temperature is of 18.9 °C. Therefore, the sea is very cool for swimming.


December is generally a mild month. The average temperature is of 12.4 °C, with a minimum of 10.7 °C and a maximum of 14 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 5 °C. However, it dropped to 2 °C in December 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 19 °C. However, it reached 23 °C in December 2010.
Rain iconPrecipitation amounts to 100 mm, distributed over 10 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 3.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of 22 kph.
Sea iconThe average sea temperature is of 17 °C. Therefore, the sea is cold for swimming.

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