Castelli Temperature by Month
Castelli in Abruzzo, Italy sees significant seasonal temperature differences, with daytime highs between 9°C (48°F) in February and 28°C (82°F) in August, averaging 18°C (64°F) annually. Explore the full monthly breakdown below.
Castelli Monthly Temperatures
Visitors to Castelli will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 16°C (61°F) in August to -1°C (30°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Castelli 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 276 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Castelli vs Italy
The map below shows the annual temperature across Italy. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Castelli vs World: Temperature Compared
Castelli'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:
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.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Castelli?
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 Castelli, February is the coolest month, with average highs of 10°C (50°F) and humidity around 73% — considered high. In August, the warmest month, temperatures average 28°C (82°F) with 71% 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 Castelli this rarely lasts long on the ground.
For more on Castelli's weather — including monthly rainfall, sunshine hours, and humidity — visit our Castelli climate page.
