Giulianello Temperature by Month
Giulianello in Lazio, Italy sees significant seasonal temperature differences, with daytime highs between 12°C (54°F) in January and 31°C (88°F) in August, averaging 20°C (68°F) annually. Explore the full monthly breakdown below.
Giulianello Monthly Temperatures
In Giulianello, temperatures differ significantly between summer and winter months. Nighttime lows reflect this range, dropping from 19°C (66°F) in August to 3°C (37°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Giulianello by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 298 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Giulianello 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.
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Giulianello vs World: Temperature Compared
Giulianello's average annual maximum temperature is 20°C (68°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.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
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.
What Does the Temperature Feel Like in Giulianello?
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 Giulianello, January is the coolest month, with average highs of 12°C (54°F) and humidity around 75% — considered high. In August, the warmest month, temperatures average 31°C (88°F) with 73% 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 Giulianello this rarely lasts long on the ground.
For more on Giulianello's weather — including monthly rainfall, sunshine hours, and humidity — visit our Giulianello climate page.
