Weather in Milan in August
Italy · 20-year averages, August
A good month. August is a solid month to be in Milan. Highs average 29.1 °C, lows 19.1 °C, and rain falls on 12 days — nothing in the month is working against you.
August ranks 7 of 12 in Milan: past the worst of the year but short of September, which is the month to book if the dates are open.
Rain on 12 days, 3 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 29.1 °C days and 19.1 °C nights; the spread matters more here than any single number.
What the averages hide
Averages flatten a month, and this one hides a few things: 12 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest August day reached 39.1 °C and the coldest night fell to 11.2 °C, and the wettest single day dropped 56 mm — roughly 63% of the month's rain in one day.
August is moderately variable: 29 mm in the driest year against 151 mm in the wettest, around an average of 89 mm. Roughly two Augusts in three land near that average, and the third does something else entirely.
Wind is light at 3.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 66%.
How August sits in the year
Temperatures hold steady either side: 29.3 °C in July, 29.1 here, 24.7 in September. Nothing about the timing within the month matters much.
Daylight in August
14.2 hours of daylight, losing 1.4 hours across the month. That is between Milan's extremes of 15.7 and 8.7 hours, so days are long enough not to constrain the plan.
An inland climate
With no coast nearby, the year swings a fair way — 28.8 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Busy. Popular without being frantic; book the things you care about, improvise the rest.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
August in Milan versus nearby
If Milan is one option among several, the nearby comparison is worth making. Genoa is close enough to be a coin toss — within a degree on temperature, 5 days less rain. Zermatt is close enough to be a coin toss — 10.6 °C cooler, 3 days more rain.
So: August works, with September the better month by 13 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Milan
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 7.6 | 0.5 | 7 | 47 | 77 | 9.1 | 48 |
| February | 9.7 | 1.4 | 7 | 62 | 75 | 10.4 | 48 |
| March | 14.5 | 4.6 | 9 | 64 | 72 | 11.8 | 65 |
| April | 18.5 | 8.5 | 11 | 87 | 72 | 13.5 | 75 |
| May | 22.5 | 12.6 | 14 | 106 | 71 | 14.9 | 73 |
| June | 26.7 | 17 | 12 | 81 | 70 | 15.7 | 77 |
| July | 29.3 | 19.3 | 11 | 68 | 65 | 15.4 | 69 |
| August | 29.1 | 19.1 | 12 | 89 | 66 | 14.2 | 67 |
| September | 24.7 | 14.9 | 10 | 80 | 69 | 12.6 | 80 |
| October | 19.4 | 10.6 | 10 | 95 | 76 | 11 | 78 |
| November | 13.2 | 5.9 | 11 | 137 | 80 | 9.6 | 55 |
| December | 8.1 | 1.6 | 9 | 69 | 77 | 8.7 | 45 |
See all twelve months in Milan, or where else to go in August.
Planning the rest of the trip
- Flight time to Milan how long you are actually in the air
- Milan time zone and the difference from home
- Days until your trip count down to the departure date