Áyios Ioánnis Temperature by Month
Áyios Ioánnis, Greece has an average annual maximum temperature of 21°C (70°F), ranging from 12°C (54°F) in January to 31°C (88°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Áyios Ioánnis Monthly Temperatures
The climate in Áyios Ioánnis is dynamic, ranging widely from chilly in winter to very warm in summer. Nights are significantly colder, with lows dropping from 19°C (66°F) in July to 3°C (37°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Áyios Ioánnis by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. July, the warmest month of the year, receives 358 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Áyios Ioánnis 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.
very warm
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Áyios Ioánnis vs World: Temperature Compared
Áyios Ioánnis's average annual maximum temperature is 21°C (70°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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Áyios Ioánnis?
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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Áyios Ioánnis, January is the coolest month, with average highs of 12°C (54°F) and humidity around 73% — considered high. In July, the warmest month, temperatures average 31°C (88°F) with 57% 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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Áyios Ioánnis's weather — including monthly rainfall, sunshine hours, and humidity — visit our Áyios Ioánnis climate page.
