Greece Weather in September

Greece weather in September is the backdrop for outings with a host across the Greek mainland and islands. The figures here come from stations at Thessaloniki, Mytilene, Alexandroupolis, Volos, Lemnos, Aegina and Chalcis. Two September events follow: the Thessaloniki International Fair and the ancient Eleusinian Mysteries. Four short answers cover Mount Parnitha, Skyros, Tanagra and the September equinox. Related pages include a 10 day Greece itinerary and the Greece tour packages. The full range of outings sits under Greece tours.

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What is Greece weather in September like?

Greece weather in September is logged at the Aristotle University of Thessaloniki station, 32 m above sea level. Its September daily high averages 27.8 °C over the normals of 1991–2020. Normals are long-run averages that set a baseline for each month.

Greece weather in September: the Monastery of Great Meteoron on its rock at Meteora under a clear blue sky
Great Meteoron Monastery at Meteora

The Köppen system sorts the world’s climates by heat and rainfall. Under that system, a dry-summer month gets less than 30 mm of precipitation. Precipitation covers rain, snow and hail. In the Northern Hemisphere, the month must also fall among the high-sun months from April to September. High-sun months are those when the sun climbs highest.

Greece weather in September in Thessaloniki belongs to a transitional climate. Transitional means it blends traits of neighbouring climate zones, since the city sits at their edge. The Pindus mountain range dries out westerly winds, which adds to the area’s dry climate. Westerly winds blow from the west, and a range is a chain of peaks.

The same station records an average September daily low of 17.6 °C. Greece weather in September there also brings 37.4 mm of precipitation on average. Each millimetre stands for one litre of water on a square metre of ground. The figure is a monthly total, summed across the whole month.

  • Wet days: The Thessaloniki Airport station counts 7.0 days with precipitation in an average September.
  • Sunshine: The same airport station logs 229.9 hours of sunshine across the month.
  • Humidity: Relative humidity, a measure of how damp the air is, averages 61.9% at the airport station.

For Greece weather in September, the Aristotle University record high stands at 40.3 °C. A record high is the warmest reading since records began. Extremes at this station have been kept from 1930 to the present. Extremes are the highest and lowest readings.

Which figures does Mytilene give for Greece weather in September?

Greece weather in September at the Mytilene station on Lesbos brings an average high of 27.0 °C. Mytilene serves as both the capital and the harbour town of Lesbos. The station’s averages cover the span of years 1955-2010.

Mytilene has a hot-summer Mediterranean climate, written Csa under Köppen. Summer brings heat and dryness there, while winter turns cool and rainy. In that code, C stands for a temperate group of climates. The s shows that the summer is the dry season. The a shows that the summer is hot, not merely warm.

The Mytilene station sets the average daily low for Greece weather in September at 18.6 °C. A daily low is the coolest reading of each day. Precipitation at the same station totals 12.4 mm in an average September. That total counts rain, hail and any other water that falls from the sky.

On the precipitation side of Greece weather in September, Mytilene counts 2.9 wet days on average. A wet day here means a day with measurable precipitation. A figure such as 2.9 is an average, so it need not be a whole number. The averages were built from readings taken between 1955 and 2010.

  • Record high: The hottest September reading listed for the Mytilene station is 36.2 °C.
  • Record low: Its coldest September reading on the same list stands at 10.9 °C.
  • Air moisture: Air at the Mytilene station holds an average relative humidity of 60.7% in September.

Greece weather in September in Mytilene is recorded in a regional capital. Mytilene is the capital and administrative centre of the North Aegean Region. An administrative centre is the town where a region’s government offices sit. A region is one of Greece’s large administrative areas.

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How does Alexandroupolis in Thrace record Greece weather in September?

Greece weather in September at the Alexandroupolis station tops out at 26.2 °C on average. Alexandroupolis is a port city in Greek Thrace. The city also serves as capital of the Evros regional unit. That unit forms one district in a wider region.

The Köppen code for Alexandroupolis is Csa, the hot-summer form of the Mediterranean type. Its summers are hot and dry. Its winters are cool and wet. A Mediterranean climate takes its name from the lands around the Mediterranean Sea. Those coastal regions largely share the same pattern of dry summers and wet winters.

Daily lows at the Alexandroupolis station average 14.4 °C in September. The lowest September reading in its record is 0.0 °C, the freezing point of water. A record low is the coldest value ever measured for a given month. Its extremes date from 1961 to the present.

For Greece weather in September, the Alexandroupolis station logs 254.9 hours of sunshine on average. Sunshine hours measure how long direct sunlight reaches the ground. The figure adds up every sunny hour across the month. An average like this smooths out the swings between single years. It is a long-run mean, not one year’s total.

  • Precipitation: For Greece weather in September, the Alexandroupolis station averages 27.9 mm of precipitation.
  • Rain days: Precipitation falls on 4.4 days of the month at the same station, on average.
  • Dampness: Relative humidity at the Alexandroupolis station averages 60.2% across the month of September.

Behind this Greece weather in September record stands a city with a royal name. In 1920 the city was renamed to honour Alexander, King of Greece. The new name means city of Alexander in Greek. Polis is the Greek word for city.

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What does the Volos station show about Greece weather in September?

Greece weather in September at the Volos station brings a mean daily maximum of 27.0 °C. That figure blends each day’s top reading into one monthly value. Volos is a coastal port city in Thessaly, midway along the Greek mainland.

The Köppen system places Volos in the cold semi-arid group, coded BSk. Semi-arid means fairly dry, wetter than a desert but drier than a humid climate. In the code, B marks a dry climate group. The S stands for steppe, a grassland type of dry climate. The k marks the cold form of that type.

Greece weather in September at Volos also has an average daily minimum of 17.9 °C. Precipitation at the station averages 45.0 mm for the month. That total includes all rain and other moisture caught in the gauge. A gauge is the container that collects precipitation for measuring.

For Greece weather in September, the Volos record lists 5.3 wet days. Each one has at least 1.0 mm of precipitation. A threshold like 1.0 mm leaves out days with a mere trace of moisture. A trace is an amount too small to measure well. The figures come from the years 1958 to 1983.

  • Hottest reading: The Volos station has logged a September record high of 36.8 °C.
  • Coldest reading: Its lowest September reading is 9.2 °C, set at the same station.
  • Sun: Volos averages 240.6 hours of sunshine in September at this station.

Greece weather in September in Volos sits within a climate of fairly low humidity. Humidity measures how much water vapour hangs in the air. Water vapour is water in the form of an invisible gas. Low humidity means the air holds little of that gas.

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Where does Lemnos sit in the range of Greece weather in September?

Greece weather in September on Lemnos is tracked by the Lemnos Island station. Lemnos rises from the northern Aegean Sea as a Greek island. There, the average top temperature of the day reaches 25.3 °C in September. Those averages span 1974 to 2010.

The climate on Lemnos is mainly Mediterranean, given the code Csa. Mediterranean here names a type with dry summers and wet winters. Winters on the island are mild as a rule. Even so, snow falls there from time to time. Snowfall is snow coming down from clouds, and it counts as precipitation.

On Lemnos, Greece weather in September brings a mean daily low of 16.7 °C. The station is named the Lemnos Island station in its climate table. A climate table sets out monthly averages for one place. Each row covers one measure, such as heat, rain or humidity. Each column covers one month.

The Lemnos Island station records 29.3 mm of precipitation across September. For Greece weather in September, that figure is the sum for the whole month. The figure is an average over the station’s years of records. Averages smooth out the gap between a dry year and a wetter one.

  • Days with rain: The Lemnos Island station logs 4.0 September days with at least 0.01 mm.
  • Peak reading: Its highest September temperature on record is 32.8 °C.
  • Lowest reading: The coldest September value in the same table is 8.8 °C.

Greece weather in September on Lemnos also comes with 66.8% average relative humidity at the station. Relative humidity compares the moisture in the air with the full amount it can hold. That full amount rises as the air warms.

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How does Aegina’s semi-arid climate frame Greece weather in September?

Greece weather in September on Aegina sees daytime highs average 29.1 °C at the island’s station. Aegina is one of the Saronic Islands, 27 km from Athens. The station’s figures come from monthly bulletins of the National Observatory of Athens.

Greece weather in September on Aegina falls within a hot semi-arid climate, which Köppen writes as BSh. The island’s average yearly temperature is around 20.0 °C. Its yearly precipitation stays below 340 mm. In the code, the h marks the hot form of a dry climate. A yearly average blends the warm and cool months into one number.

At the Aegina station, Greece weather in September has a daily mean of 25.5 °C. A daily mean averages the temperature over all twenty-four hours of a day. Across the month, those values combine into one figure for the whole of September. Climate tables list it beside the highs and lows.

Greece weather in September at the Aegina station also includes 45.8 mm of rainfall on average. The total adds up each fall of rain across the thirty days of the month. A monthly average like this comes from years of bulletins. A bulletin is a short official report issued at set times.

  • Night low: The Aegina station’s mean daily minimum in September is 21.8 °C.
  • Top reading: Its record high for September stands at 37.1 °C.
  • Bottom reading: Its record low for September is 14.8 °C, set at the same station.

The town of Aegina, at the island’s north-western tip, serves as the regional capital. A regional capital is the seat of local government for an area. The town and the island share one name. North-western means facing towards the north-west, between north and west.

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What does Chalcis on the Euripus Strait add to Greece weather in September?

Greece weather in September at the Chalcis station reaches a mean high of 28.9 °C. Chalcis is the chief city of the island of Euboea. It stands on the Euripus Strait, where the channel is at its narrowest. A strait is a narrow sea channel.

Greece weather in September in Chalcis belongs to a Mediterranean climate, with the Köppen code Csa. That climate sits close to the line of a semi-arid type. Summer in Chalcis is hot and dry, while winter is mild and rainy. A climate border is the point where one type gives way to the next.

At the Chalcis station, the mean low for Greece weather in September is 19.2 °C. September rainfall there averages 11.9 mm. The mean low is the average of the night-time minimum readings. Rainfall totals are given in millimetres of water depth. Depth here means how high the water stands on flat ground.

For Greece weather in September, the Chalcis station counts 283.4 hours of sunshine. That sum is the total time the sun shone across the month. A sunshine recorder logs each hour when direct sun reaches the instrument. The figure comes from the station’s climate table for Chalcis.

  • Daily mean: The Chalcis station’s September daily mean temperature is 23.3 °C.
  • Moisture: The Chalcis table puts average September relative humidity at 56%.
  • Name: Chalcis comes from chalkos, Greek for copper or bronze, yet no mines are traced there.

In the Late Middle Ages, Chalcis was known as Negropont, or Negroponte. That Italian name was also used for the whole island of Euboea. The Late Middle Ages were the closing centuries of the medieval period. Medieval describes the era between ancient and modern times.

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How does the Thessaloniki International Fair line up with Greece weather in September?

Greece weather in September coincides with the Thessaloniki International Fair. Since 1926, the fair has been staged during the opening week of September. The fair’s own station, 29 m above sea level, averages a September high of 27.8 °C.

The Thessaloniki International Fair is an annual international exhibition. It is held in Thessaloniki, which is Greece’s second-largest city. An exhibition is a large public show of goods, ideas or services. Annual means it returns once every year. International means it draws in people from more than one country. Trade fairs like it let makers show their goods to buyers.

The exhibition centre covers 180,000 square metres in total. Of that area, 62,000 square metres are indoor exhibition halls. Indoor halls keep displays under a roof, away from sun and rain. Each square metre equals a patch one metre long and one metre wide. The rest of the area is not indoor exhibition space.

The centre’s halls form a complex of 17 linked pavilions. A pavilion is a large hall or building used for a show. At the fair’s station, Greece weather in September brings 26.4 mm of rainfall on average. Rainfall counts only liquid rain, not snow or hail. The station takes its name from the fair itself.

  • Honoured country: The fair first had an honoured country in 1998, a guest nation given special status.
  • Station low: For Greece weather in September, the fair’s station keeps a mean daily minimum of 20.3 °C.
  • Greek name: Diethnis Ekthesi Thessalonikis, the Greek name, means International Exhibition of Thessaloniki; TIF is the short form.

In 2020, the COVID-19 pandemic forced the fair’s cancellation. It was the first cancellation since the Second World War. A pandemic is a disease outbreak that spreads across the world. So that year, Greece weather in September passed without the fair.

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Why do the Eleusinian Mysteries belong to the story of Greece weather in September?

Greece weather in September matches the season of Boedromion, the third month of the Attic calendar. Boedromion fell in late summer, around September or October. The Greater Mysteries fell in that month. These rites were yearly initiations for the cult of Demeter and Persephone at Eleusis.

The Attic calendar was the calendar of ancient Athens and its region, Attica. An initiation is a ceremony that admits a person into a group or its secrets. A cult here means a set of rites for a god or goddess. The rites rested on an agrarian cult from the Bronze Age. Agrarian means linked to farming and the land.

On the 15th of Boedromion, a day called the Gathering, priests declared the start of the rites. Its Greek name was Agyrmos. A priest is a person who leads sacred rites. On the 18th, a procession set out on foot for Eleusis. Those walking in it swung branches called bacchoi.

At one stage, initiates drank kykeon, a special drink made of barley and pennyroyal. Barley is a cereal grain, like wheat. Pennyroyal is a small plant of the mint family. An initiate is a person admitted into the rites. A cereal is a grass grown for its edible grain.

  • Waiting year: New initiates joined the Greater Mysteries only in September of the following year.
  • Elefsina high: For Greece weather in September, the Elefsina station averages a daily maximum of 28.8 °C.
  • Elefsina rain: For Greece weather in September, the same Elefsina station records 15.7 mm of precipitation.

In the season of Greece weather in September, the rites retold one myth. In it, Hades, king of the underworld, took Persephone from her mother Demeter. In Greek belief, the underworld held the souls of the dead. Persephone was the daughter of Demeter.

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What do travellers ask about Greece weather in September, and what are the answers?

Greece weather in September is also logged at a mountain station on Parnitha, north of Athens. Two more records come from the Skyros airport station and the Tanagra station. The month also holds the September equinox, a turning point in the Sun’s yearly path.

Before a trip, how cool is Greece weather in September on Mount Parnitha?

Mount Parnitha, north of Athens, is the highest range on the Attica peninsula. Such a peninsula is land almost ringed by sea. Its weather station sits 1230 m above sea level. There, the September daily high averages 19.5 °C. The daily low at the same station averages 13.6 °C.

On Skyros, what does the airport station show for Greece weather in September?

The Skyros airport station keeps averages from 1955 to 2010. Its data belong to the Hellenic National Meteorological Service, where Hellenic means Greek. In September, its mean daily maximum is 24.7 °C. Relative humidity there averages 70.8% for the month. The island’s climate is the hot-summer Mediterranean type, with warm, dry summers.

How does the Tanagra station in Boeotia record Greece weather in September?

Tanagra is a town in Boeotia, north of Athens. Boeotia is a region of central Greece. The figures for the Tanagra station span 1957 to 2010. In September, it records a mean daily maximum of 27.7 °C. Its mean daily minimum for the month is 15.3 °C.

When does the equinox arrive during Greece weather in September?

The September equinox can fall on any date from September 21 to 24. An equinox is the moment the Sun seems to cross the celestial equator, a line above Earth’s equator. North of the equator, it can mark the start of astronomical autumn. Astronomical seasons follow the Sun’s path rather than the weather.