Ermoupoli Temperature by Month
The average annual maximum temperature in Ermoupoli, Cyclades, Greece is 20°C (68°F), with daytime highs ranging from 15°C (59°F) in January to 27°C (81°F) in August. This page covers monthly averages, day-night differences, and how Ermoupoli compares to cities worldwide.
Ermoupoli Monthly Temperatures
In Ermoupoli, temperatures can shift dramatically between warm in summer and mild in winter. Nights follow the same pattern, with lows ranging from 24°C (75°F) in August to 11°C (52°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ermoupoli by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Ermoupoli vs Greece
The map below shows the annual temperature across Greece. You can also select individual months if you want to compare a specific time of year.
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Ermoupoli vs World: Temperature Compared
Ermoupoli's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Ermoupoli?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Ermoupoli, January is the coolest month, with average highs of 15°C (59°F) and humidity around 72% — considered high. In August, the warmest month, temperatures average 27°C (81°F) with 70% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Ermoupoli this rarely lasts long on the ground.
For more on Ermoupoli's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ermoupoli climate page.
