Weather in Genoa in August
Italy · 20-year averages, August
A good month. August works. It is not the peak, but nothing about it fights you. Highs average 30.7 °C, lows 21 °C, and rain falls on 7 days — nothing in the month is working against you.
August ranks 6 of 12 in Genoa: past the worst of the year but short of June, which is the month to book if the dates are open.
Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 30.7 °C days and 21 °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: 19 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest August day reached 39.2 °C and the coldest night fell to 14 °C, and the wettest single day dropped 37 mm — roughly 76% of the month's rain in one day.
August is moderately variable: 8 mm in the driest year against 104 mm in the wettest, around an average of 49 mm. Roughly two Augusts in three land near that average, and the third does something else entirely.
Wind is light at 5.7 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: 30.8 °C in July, 30.7 here, 26.4 in September. Nothing about the timing within the month matters much.
Daylight in August
14.1 hours of daylight, losing 1.3 hours across the month. That is between Genoa's extremes of 15.5 and 8.9 hours, so days are long enough not to constrain the plan.
Sea temperature
The sea sits at about 24.5 °C in August — warm enough to stay in as long as you like. This is the warmest the water gets all year.
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 Genoa versus nearby
If Genoa is one option among several, the nearby comparison is worth making. Milan is close enough to be a coin toss — within a degree on temperature, 5 days more rain. Nice is a better bet in August — 4.9 °C cooler, 2 days less rain.
So: August works, with June the better month by 12 points if the dates can move. If they cannot, nothing here should stop you booking.
Every month in Genoa
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 9.9 | 3.8 | 7 | 56 | 84 | 9.2 | 13.5 | 48 |
| February | 11 | 4.1 | 8 | 59 | 82 | 10.4 | 13.1 | 56 |
| March | 14.9 | 6.8 | 8 | 71 | 78 | 11.8 | 13.4 | 68 |
| April | 18.6 | 10.2 | 10 | 70 | 77 | 13.4 | 14.7 | 77 |
| May | 22.4 | 14 | 10 | 67 | 76 | 14.8 | 17.4 | 81 |
| June | 27.3 | 18.4 | 9 | 47 | 72 | 15.5 | 21.2 | 83 |
| July | 30.8 | 20.9 | 7 | 34 | 65 | 15.2 | 23.9 | 70 |
| August | 30.7 | 21 | 7 | 49 | 66 | 14.1 | 24.5 | 71 |
| September | 26.4 | 17.3 | 9 | 61 | 69 | 12.6 | 22.5 | 83 |
| October | 21.1 | 13.2 | 10 | 97 | 78 | 11.1 | 20 | 80 |
| November | 15 | 8.7 | 12 | 145 | 84 | 9.7 | 17.3 | 58 |
| December | 10.7 | 4.9 | 9 | 79 | 84 | 8.9 | 14.9 | 52 |
See all twelve months in Genoa, or where else to go in August.
Planning the rest of the trip
- Flight time to Genoa how long you are actually in the air
- Genoa time zone and the difference from home
- Days until your trip count down to the departure date