Olympia Temperature by Month
The average annual maximum temperature in Olympia, Peloponnese, Greece is 22°C (72°F), with daytime highs ranging from 14°C (57°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Olympia compares to cities worldwide.
Olympia Monthly Temperatures
The climate in Olympia is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 20°C (68°F) in August to 5°C (41°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Olympia by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 338 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Olympia 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
very cold
Olympia vs World: Temperature Compared
Olympia's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot 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 Olympia?
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 Olympia, January is the coolest month, with average highs of 14°C (57°F) and humidity around 69% — considered high. In August, the warmest month, temperatures average 32°C (90°F) with 60% 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.
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 Olympia's weather — including monthly rainfall, sunshine hours, and humidity — visit our Olympia climate page.
