Weather in San Miguel de Tucumán in May

Prime time. May is about as good as San Miguel de Tucumán gets. Highs average 23.9 °C, lows 11.4 °C, and rain falls on 4 days — nothing in the month is working against you.

May ranks 4 of 12 in San Miguel de Tucumán: past the worst of the year but short of July, which is the month to book if the dates are open.

Rain falls on only 4 days, so an itinerary with no wet-weather fallback is a reasonable risk. 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 34.7 °C and the coldest night fell to 0 °C, and the wettest single day dropped 34 mm — roughly 142% of the month's rain in one day.

May is moderately variable: 0 mm in the driest year against 70 mm in the wettest, around an average of 24 mm. Roughly two Mays in three land near that average, and the third does something else entirely.

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 71%.

How May sits in the year

The month is on the way down: 3.3 °C cooler than April, with June dropping another 2 °C. The first week and the last are not the same trip.

Daylight in May

May sits at the dark end of San Miguel de Tucumán's year — 10.8 hours of daylight against 13.8 at midsummer, losing 0.5 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

An inland climate

With no coast nearby, the year swings a fair way — 26.5 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.

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 San Miguel de Tucumán versus nearby

If San Miguel de Tucumán is one option among several, the nearby comparison is worth making. Salta is close enough to be a coin toss — 2 °C warmer, 1 day less rain. Córdoba is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: May is effectively as good as it gets here — 4 points behind July, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in San Miguel de Tucumán

See all twelve months in San Miguel de Tucumán, or where else to go in May.