Onno Temperature by Month
The average annual maximum temperature in Onno, Lombardy, Italy is 15°C (59°F), with daytime highs ranging from 6°C (43°F) in January to 26°C (79°F) in July. This page covers monthly averages, day-night differences, and how Onno compares to cities worldwide.
Onno Monthly Temperatures
In Onno, temperatures can shift dramatically between warm in summer and cold in winter. Nights follow the same pattern, with lows ranging from 16°C (61°F) in July to -2°C (28°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Onno by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 284 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Onno 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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Onno vs World: Temperature Compared
Onno's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
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.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Onno?
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 Onno, January is the coolest month, with average highs of 6°C (43°F) and humidity around 83% — considered very high. In July, the warmest month, temperatures average 26°C (79°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.
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 Onno's weather — including monthly rainfall, sunshine hours, and humidity — visit our Onno climate page.
