Diecimo Temperature by Month

Diecimo in Tuscany, Italy sees significant seasonal temperature differences, with daytime highs between 9°C (48°F) in January and 27°C (81°F) in August, averaging 18°C (64°F) annually. Explore the full monthly breakdown below.

With significant temperature fluctuations, Diecimo enjoys distinct seasons year-round. Nighttime lows range from 17°C (63°F) in August to 2°C (36°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Diecimo by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 279 hours of sunshine.

The chart below shows the average temperature throughout the year:

Diecimo's average annual maximum temperature is 18°C (64°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.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Diecimo, January is the coolest month, with average highs of 9°C (48°F) and humidity around 75%, considered high. In August, the warmest month, temperatures average 27°C (81°F) with 68% 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 Diecimo this rarely lasts long on the ground.

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