- Climate Classification
- Semi-continental with warm summers
Updated July 2026 · Sources cited: climatestotravel.com, weather-atlas.com
Good to know
Good to Know
- Best window for visiting is May–June or September, with ideal temperatures (18–25°C (64–77°F) / 65–77°F) and lower humidity than peak summer.
- Summer (June–August) is hot and muggy—temperatures can exceed 35°C (95°F)—with poor air circulation in the historic center; many locals take August holidays.
- Winter (December–February) sees daytime highs around 7–8°C (45–50°F) and lows near 1–2°C (34–35°F); snow is light and infrequent despite cold nights.
- November is the wettest month; spring (April–May) also brings significant rain and occasional thunderstorms. July is the driest.
- Covered porticoes throughout Bologna (27 miles total) provide shelter during rainy periods.
- High humidity year-round (especially January–February), which makes cooler months feel damper and summer heat feel more oppressive.
Humidity
- Lowest Percent
- 58
- Highest Percent
- 79
- Lowest Month
- August
- Highest Months
- January and February
Rainfall
- Pattern
- Two peaks in spring and autumn, two minima in winter and summer
- Annual Mm
- 825
- Driest Mm
- 48
- Wettest Mm
- 95
- Driest Month
- July
- Annual Inches
- 32.5
- Wettest Month
- November
Snowfall
- Occurs
- Yes
- Season
- December to February primarily
- Peak Month
- February
- Average Peak Mm
- 32
- Typical Frequency
- 3–4 snow days per winter on average
- Typical Accumulation Cm
- 25
- Note
- Occasional light snows; occasional heavy snow in January and February, but rare in recent decades due to warming trends
Best Months
Best Months
- April
- May
- June
- September
- October
Worst Months
Worst Months
- January
- February
- November
- December
Peak Temperatures
- Highest Month
- July
- Average High Celsius
- 31.3
- Average High Fahrenheit
- 88.3
Off Peak Temperatures
- Lowest Month
- January
- Average Low Celsius
- 1.3
- Average Low Fahrenheit
- 34.3
Climate Classification
Semi-continental with warm summers
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Bologna
Data last updated July 2026 · Verify anything important.