Sounio Temperature by Month
The average annual maximum temperature in Sounio, Attica, Greece is 23°C (73°F), with daytime highs ranging from 15°C (59°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Sounio compares to cities worldwide.
Sounio Monthly Temperatures
The climate in Sounio is dynamic, ranging widely from moderate in winter to very warm in summer. Nights are significantly colder, with lows dropping from 24°C (75°F) in August to 9°C (48°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Sounio by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 340 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Sounio 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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Sounio vs World: Temperature Compared
Sounio's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Sounio?
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 Sounio, 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 32°C (90°F) with 46% humidity — conditions that feel moderate. 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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Sounio's weather — including monthly rainfall, sunshine hours, and humidity — visit our Sounio climate page.
