CastellʼAlfero Temperature by Month

CastellʼAlfero in Piedmont, Italy sees significant seasonal temperature differences, with daytime highs between 8°C (46°F) in January and 31°C (88°F) in July, averaging 19°C (66°F) annually. Explore the full monthly breakdown below.

The climate in CastellʼAlfero 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 0°C (32°F) in January.

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

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. July, the city's warmest month, averages 260 hours of sunshine.

The chart below shows the average temperature throughout the year:

CastellʼAlfero's average annual maximum temperature is 19°C (66°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.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

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 CastellʼAlfero, January is the coolest month, with average highs of 8°C (46°F) and humidity around 75%, considered high. In July, the warmest month, temperatures average 31°C (88°F) with 72% 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.

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 CastellʼAlfero's weather, including monthly rainfall, sunshine hours, and humidity, visit our CastellʼAlfero climate page.