Weather in Catania in August

A hard month. August asks something of you. Go in knowing what. Daytime highs average 36.5 °C and the afternoon is not negotiable — outdoor plans move to early morning or evening.

August ranks 12 of 12 — near the bottom of Catania's year. May is the month that works, and the swing between the two is 46 points, which is a different holiday rather than a slightly better one.

Rain falls on only 3 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for heat management rather than style: shade, water, and a schedule that gives up on the middle of the day.

What the averages hide

Averages flatten a month, and this one hides a few things: 21 days of the month clear 35 °C — that is not a heatwave, it is the month. Across the twenty years measured, the hottest August day reached 44.1 °C and the coldest night fell to 18.9 °C.

This is the volatile part. August rainfall has ranged from 0 mm to 66 mm across the twenty years measured — a 66 mm spread around an average of 11 mm. The average is real but almost no individual August looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 6.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 51%.

How August sits in the year

Temperatures hold steady either side: 36.5 °C in July, 36.5 here, 31.1 in September. Nothing about the timing within the month matters much. Rain is the thing that moves: September brings 5 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in August

13.7 hours of daylight, losing 1 hours across the month. That is between Catania's extremes of 14.7 and 9.6 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 27 °C in August — warm enough that the water offers no relief from the heat. This is the warmest the water gets all year.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

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

August in Catania versus nearby

If Catania is one option among several, the nearby comparison is worth making. Taormina is a better bet in August — 4.5 °C cooler, 1 day more rain. Palermo is a better bet in August — 3.9 °C cooler, the same number of rain days.

So: August is a compromise. May is 46 points better and is what Catania 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 Catania

See all twelve months in Catania, or where else to go in August.