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Monza Weather by Month
Average temperatures, rainfall and humidity for Monza, Italy, month by month, built from OpenWeather’s historical records. Use it to see what a typical Monza month looks like before you travel — then check the live Monza forecast for the days ahead.
Warmest month
July
30°C average high
Coolest month
January
1°C average low
Wettest month
September
152 mm of rain
Driest month
January
69 mm of rain
Average temperature and rainfall in Monza 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 | -7°C / 18°C | 69 mm | 82% | 6 km/h |
| February | 10°C | 3°C | -10°C / 21°C | 78 mm | 79% | 7 km/h |
| March | 14°C | 5°C | -4°C / 24°C | 71 mm | 69% | 8 km/h |
| April | 19°C | 9°C | 1°C / 28°C | 86 mm | 66% | 8 km/h |
| May | 22°C | 13°C | 4°C / 34°C | 114 mm | 69% | 8 km/h |
| June | 28°C | 18°C | 10°C / 37°C | 87 mm | 64% | 8 km/h |
| July | 30°C | 20°C | 9°C / 40°C | 69 mm | 63% | 7 km/h |
| August | 30°C | 20°C | 11°C / 40°C | 128 mm | 65% | 7 km/h |
| September | 25°C | 16°C | 7°C / 34°C | 152 mm | 70% | 6 km/h |
| October | 19°C | 11°C | 0°C / 30°C | 94 mm | 81% | 6 km/h |
| November | 13°C | 6°C | -4°C / 21°C | 117 mm | 85% | 6 km/h |
| December | 8°C | 2°C | -6°C / 19°C | 83 mm | 86% | 6 km/h |
Best time to visit Monza
The most comfortable time to visit Monza is generally May to June and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around September, totalling about 1,148 mm a year.
Travellers who prefer heat should aim for July, when highs average 30°C. September is the month to avoid if rain would spoil your plans — it averages 152 mm, roughly 2× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Monza forecast for what is happening now.