Weather in Zaragoza in May
Spain · 20-year averages, May
Prime time. May is about as good as Zaragoza gets. Highs average 25.6 °C, lows 11.5 °C, and rain falls on 8 days — nothing in the month is working against you.
May ranks 2 of 12 in Zaragoza. Only October scores clearly higher, and the difference is small enough to be settled by price rather than weather.
Rain on 8 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: 6 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest May day reached 36.3 °C and the coldest night fell to 3 °C, and the wettest single day dropped 35 mm — roughly 80% of the month's rain in one day.
May is moderately variable: 4 mm in the driest year against 129 mm in the wettest, around an average of 44 mm. Roughly two Mays in three land near that average, and the third does something else entirely.
Wind is light at 11.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 60%.
How May sits in the year
The month is on the way up: 4.1 °C warmer than April, and June adds another 5.5 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.
Daylight in May
14.5 hours of daylight, gaining 1 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. Within May itself the daily swing is 14.1 °C, so mornings and afternoons need different clothes.
How busy it gets
Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, February is the trade worth considering — 14 points weaker on weather, and materially quieter.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
May in Zaragoza versus nearby
If Zaragoza is one option among several, the nearby comparison is worth making. Gasteiz / Vitoria is the weaker option in May — 7.6 °C cooler, 5 days more rain. Valencia is close enough to be a coin toss — within a degree on temperature, 2 days less rain.
So: May is effectively as good as it gets here — 1 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
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 12.9 | 3.1 | 6 | 26 | 78 | 9.5 | 68 |
| February | 14.2 | 3.1 | 5 | 20 | 73 | 10.6 | 73 |
| March | 18.2 | 5.6 | 7 | 35 | 67 | 11.9 | 82 |
| April | 21.5 | 8.2 | 9 | 46 | 64 | 13.3 | 84 |
| May | 25.6 | 11.5 | 8 | 44 | 60 | 14.5 | 86 |
| June | 31.1 | 15.9 | 7 | 32 | 54 | 15.2 | 69 |
| July | 34.2 | 18.3 | 4 | 18 | 50 | 14.9 | 48 |
| August | 33.8 | 18.7 | 4 | 18 | 49 | 13.9 | 63 |
| September | 28.7 | 15.3 | 6 | 31 | 58 | 12.5 | 81 |
| October | 23.9 | 11.7 | 7 | 40 | 66 | 11.2 | 87 |
| November | 16.7 | 6.6 | 7 | 38 | 75 | 9.9 | 77 |
| December | 13.2 | 3.6 | 5 | 19 | 78 | 9.2 | 70 |
See all twelve months in Zaragoza, or where else to go in May.
Planning the rest of the trip
- Flight time to Zaragoza how long you are actually in the air
- Zaragoza time zone and the difference from home
- Days until your trip count down to the departure date