Weather in Cagliari in October

Prime time. If you get to pick your dates, October is the one. Highs average 22.6 °C, lows 19.5 °C, and rain falls on 7 days — nothing in the month is working against you.

October ranks 6 of 12 in Cagliari: 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. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average October reaches 30 °C; the day barely swings — 3.1 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest October day reached 27.1 °C and the coldest night fell to 12.7 °C, and the wettest single day dropped 73 mm — roughly 143% of the month's rain in one day.

This is the volatile part. October rainfall has ranged from 1 mm to 230 mm across the twenty years measured — a 229 mm spread around an average of 51 mm. The average is real but almost no individual October looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 15.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 77%, high enough to notice on the warm days without dominating them.

How October sits in the year

The month is on the way down: 2.9 °C cooler than September, with November dropping another 4.1 °C. The first week and the last are not the same trip. Rain is the thing that moves: November brings 5 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in October

11.2 hours of daylight, losing 1.2 hours across the month. That is between Cagliari's extremes of 14.9 and 9.4 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 22 °C in October — comfortable for a proper swim. The sea peaks at 25.7 °C in August and bottoms out at 14.1 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

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.

October in Cagliari versus nearby

If Cagliari is one option among several, the nearby comparison is worth making. Palermo is the weaker option in October — 2.2 °C warmer, 4 days more rain. Rome is close enough to be a coin toss — within a degree on temperature, 3 days more rain.

So: October works, with June the better month by 10 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Cagliari

See all twelve months in Cagliari, or where else to go in October.