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The average annual maximum temperature in Catania, Sicily, Italy is 23°C (73°F), with daytime highs ranging from 15°C (59°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Catania compares to cities worldwide.
Depending on the time of the year, temperatures range from very warm to mild in Catania. At night, minimum temperatures range from 23°C (73°F) in August to 7°C (45°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Catania by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. August, the warmest month, sees 281 hours of sunshine.
The chart below shows the average temperature throughout the year:
Average high and low temperatures for each day of the month based on long-term records. 50-year average (1976-2025)
Browse day-by-day temperature records for Catania spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
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.
Catania's average annual maximum temperature is 23°C (73°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.
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 Catania, January is the coolest month, with average highs of 15°C (59°F) and humidity around 73%, considered high. In August, the warmest month, temperatures average 32°C (90°F) with 67% 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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Catania's weather, including monthly rainfall, sunshine hours, and humidity, visit our Catania climate page.
Pick a month to see the average temperature, rainfall and sunshine in Catania - and find the best time to visit.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Catania climate overview or explore weather in Italy.
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