Weather in Zaragoza in September

Prime time. September is about as good as Zaragoza gets. Highs average 28.7 °C, lows 15.3 °C, and rain falls on 6 days — nothing in the month is working against you.

September ranks 5 of 12 in Zaragoza: past the worst of the year but short of October, which is the month to book if the dates are open.

Rain falls on only 6 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 28.7 °C days and 15.3 °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: 11 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest September day reached 39.3 °C and the coldest night fell to 6.2 °C, and the wettest single day dropped 30 mm — roughly 97% of the month's rain in one day.

September is moderately variable: 9 mm in the driest year against 78 mm in the wettest, around an average of 31 mm. Roughly two Septembers in three land near that average, and the third does something else entirely.

Wind is light at 10.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 58%.

How September sits in the year

The month is on the way down: 5.1 °C cooler than August, with October dropping another 4.8 °C. The first week and the last are not the same trip.

Daylight in September

12.5 hours of daylight, losing 1.4 hours across the month. That is between Zaragoza's extremes of 15.2 and 9.2 hours, so days are long enough not to constrain the plan.

An inland climate

With no coast nearby, the year swings a fair way — 31.1 °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.

September in Zaragoza versus nearby

If Zaragoza is one option among several, the nearby comparison is worth making. Gasteiz / Vitoria is close enough to be a coin toss — 6.4 °C cooler, 4 days more rain. Valencia is the weaker option in September — within a degree on temperature, 2 days more rain.

So: September is effectively as good as it gets here — 6 points behind October, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Zaragoza

See all twelve months in Zaragoza, or where else to go in September.