Weather in Cagliari in April

Prime time. If you get to pick your dates, April is the one. Highs average 17.1 °C, lows 13.7 °C, and rain falls on 7 days — nothing in the month is working against you.

April ranks 7 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. Pack for 17.1 °C days and 13.7 °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: the day barely swings — 3.4 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 22.1 °C and the coldest night fell to 8.9 °C, and the wettest single day dropped 42 mm — roughly 91% of the month's rain in one day.

April is moderately variable: 6 mm in the driest year against 128 mm in the wettest, around an average of 46 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

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 80%, high enough to notice on the warm days without dominating them.

How April sits in the year

The month is on the way up: 1.9 °C warmer than March, and May adds another 3 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in April

13.2 hours of daylight, gaining 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 15.4 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. 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

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April in Cagliari versus nearby

If Cagliari is one option among several, the nearby comparison is worth making. Palermo is close enough to be a coin toss — 3 °C warmer, 2 days more rain. Rome is close enough to be a coin toss — 3.3 °C warmer, 2 days more rain.

So: April is a compromise. June is 19 points better and is what Cagliari is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Cagliari

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