Weather in Madrid in May

Prime time. May is about as good as Madrid gets. Highs average 23.4 °C, lows 9.3 °C, and rain falls on 8 days — nothing in the month is working against you.

May ranks 2 of 12 in Madrid. Only September 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

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest May day reached 34.8 °C and the coldest night fell to -0.5 °C, and the wettest single day dropped 32 mm — roughly 76% of the month's rain in one day.

May is moderately variable: 2 mm in the driest year against 100 mm in the wettest, around an average of 42 mm. Roughly two Mays in three land near that average, and the third does something else entirely.

Wind is light at 8.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 59%.

How May sits in the year

The month is on the way up: 4.9 °C warmer than April, and June adds another 6.7 °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

May is at or near the longest days of Madrid's year: 14.4 hours of daylight, gaining 0.9 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

An inland climate

With no coast nearby, the year swings a fair way — 33.5 °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.

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

May in Madrid versus nearby

If Madrid is one option among several, the nearby comparison is worth making. Valladolid is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Zaragoza is close enough to be a coin toss — 2.2 °C warmer, the same number of rain days.

So: May is effectively as good as it gets here — 1 points behind September, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Madrid

See all twelve months in Madrid, or where else to go in May.