Syracuse Temperature by Month
Syracuse in Sicily, Italy sees significant seasonal temperature differences, with daytime highs between 15°C (59°F) in February and 29°C (84°F) in August, averaging 21°C (70°F) annually. Explore the full monthly breakdown below.
Syracuse Monthly Temperatures
Visitors to Syracuse can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 25°C (77°F) in August to 11°C (52°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Syracuse by month:
Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. August, the warmest month of the year, receives 281 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in May
Historical Syracuse Temperatures: 1976-2026
Browse day-by-day temperature records for Syracuse spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Syracuse 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
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pleasant
moderate
cold
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Syracuse vs World: Temperature Compared
Syracuse's average annual maximum temperature is 21°C (70°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.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
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.
What Does the Temperature Feel Like in Syracuse?
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 Syracuse, February is the coolest month, with average highs of 15°C (59°F) and humidity around 71% — considered high. In August, the warmest month, temperatures average 29°C (84°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.
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 Syracuse's weather — including monthly rainfall, sunshine hours, and humidity — visit our Syracuse climate page.
