Keri Temperature by Month
The average annual maximum temperature in Keri, Ionian Islands, Greece is 21°C (70°F), with daytime highs ranging from 15°C (59°F) in February to 28°C (82°F) in August. This page covers monthly averages, day-night differences, and how Keri compares to cities worldwide.
Keri Monthly Temperatures
The climate in Keri is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 25°C (77°F) in August to 12°C (54°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Keri 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.
The chart below shows the average temperature throughout the year:
Temperature: Keri 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
warm
pleasant
moderate
cold
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Keri vs World: Temperature Compared
Keri'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:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Keri's weather — including monthly rainfall, sunshine hours, and humidity — visit our Keri climate page.
