Chios Temperature by Month

Chios in Chios Island, Greece sees significant seasonal temperature differences, with daytime highs between 14°C (57°F) in January and 30°C (86°F) in August, averaging 22°C (72°F) annually. Explore the full monthly breakdown below.

Visitors to Chios will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 24°C (75°F) in August to 10°C (50°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Chios 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:

Chios'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.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 Chios, January is the coolest month, with average highs of 14°C (57°F) and humidity around 71%, considered high. In August, the warmest month, temperatures average 30°C (86°F) with 61% 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 Chios this rarely lasts long on the ground.

For more on Chios's weather, including monthly rainfall, sunshine hours, and humidity, visit our Chios climate page.