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Bologna Weather by Month
Average temperatures, rainfall and humidity for Bologna, Italy, month by month, built from OpenWeather’s historical records. Use it to see what a typical Bologna month looks like before you travel — then check the live Bologna forecast for the days ahead.
Warmest month
July
31°C average high
Coolest month
January
1°C average low
Wettest month
September
984 mm of rain
Driest month
November
57 mm of rain
Average temperature and rainfall in Bologna by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 8°C | 1°C | -10°C / 20°C | 69 mm | 84% | 7 km/h |
| February | 11°C | 3°C | -15°C / 21°C | 116 mm | 80% | 8 km/h |
| March | 14°C | 5°C | -8°C / 25°C | 130 mm | 72% | 9 km/h |
| April | 19°C | 8°C | -3°C / 29°C | 193 mm | 69% | 9 km/h |
| May | 23°C | 12°C | 1°C / 34°C | 505 mm | 69% | 9 km/h |
| June | 29°C | 17°C | 8°C / 38°C | 679 mm | 62% | 9 km/h |
| July | 31°C | 20°C | 9°C / 38°C | 640 mm | 60% | 9 km/h |
| August | 31°C | 19°C | 7°C / 41°C | 939 mm | 61% | 9 km/h |
| September | 26°C | 15°C | 0°C / 34°C | 984 mm | 68% | 8 km/h |
| October | 19°C | 11°C | 0°C / 32°C | 569 mm | 79% | 7 km/h |
| November | 13°C | 6°C | -4°C / 21°C | 57 mm | 85% | 8 km/h |
| December | 8°C | 2°C | -7°C / 23°C | 76 mm | 86% | 7 km/h |
Best time to visit Bologna
The most comfortable time to visit Bologna is generally March to April and November, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around September, totalling about 4,956 mm a year.
Travellers who prefer heat should aim for July, when highs average 31°C. September is the month to avoid if rain would spoil your plans — it averages 984 mm, roughly 17× the rainfall of the driest month (November).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Bologna forecast for what is happening now.